Greetings, For past few days, Cinnamon DE is constantly crashing and I'm unable to understand the reason for this. Here I have attached log file of Xorg.0.log and output of cinnamon --replace. What could be issue? Currently have MATE installed as backup DE. System is updated. *Do I need to share further any other log files as well? Regards,
ashok@localhost:~$ grep -i module /var/log/Xorg.0.log
[ 27.707] (==) ModulePath set to "/usr/lib/xorg/modules"
[ 27.707] (II) Module ABI versions:
[ 27.710] (II) LoadModule: "glx"
[ 27.710] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 28.988] (II) Module glx: vendor="X.Org Foundation"
[ 28.988] compiled for 1.16.4, module version = 1.0.0
[ 28.988] (II) LoadModule: "intel"
[ 29.168] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[ 29.676] (II) Module intel: vendor="X.Org Foundation"
[ 29.676] compiled for 1.15.99.904, module version = 2.21.15
[ 29.676] Module class: X.Org Video Driver
[ 29.676] (II) LoadModule: "modesetting"
[ 29.871] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 30.245] (II) Module modesetting: vendor="X.Org Foundation"
[ 30.245] compiled for 1.16.4, module version = 0.9.0
[ 30.245] Module class: X.Org Video Driver
[ 30.245] (II) LoadModule: "fbdev"
[ 30.245] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 30.468] (II) Module fbdev: vendor="X.Org Foundation"
[ 30.468] compiled for 1.15.99.904, module version = 0.4.4
[ 30.468] Module class: X.Org Video Driver
[ 30.468] (II) LoadModule: "vesa"
[ 30.891] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[ 31.117] (II) Module vesa: vendor="X.Org Foundation"
[ 31.117] compiled for 1.15.99.904, module version = 2.3.3
[ 31.117] Module class: X.Org Video Driver
[ 31.122] (II) Loading sub module "fbdevhw"
[ 31.122] (II) LoadModule: "fbdevhw"
[ 31.122] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 31.183] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 31.183] compiled for 1.16.4, module version = 0.0.2
[ 31.621] (II) Loading sub module "fb"
[ 31.621] (II) LoadModule: "fb"
[ 31.621] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 32.001] (II) Module fb: vendor="X.Org Foundation"
[ 32.001] compiled for 1.16.4, module version = 1.0.0
[ 32.001] (II) Loading sub module "dri2"
[ 32.001] (II) LoadModule: "dri2"
[ 32.001] (II) Module "dri2" already built-in
[ 32.001] (II) UnloadModule: "modesetting"
[ 32.001] (II) UnloadModule: "fbdev"
[ 32.001] (II) UnloadSubModule: "fbdevhw"
[ 32.001] (II) UnloadModule: "vesa"
[ 36.547] (II) LoadModule: "evdev"
[ 36.591] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[ 36.728] (II) Module evdev: vendor="X.Org Foundation"
[ 36.728] compiled for 1.16.0, module version = 2.9.0
[ 36.728] Module class: X.Org XInput Driver
[ 36.739] (II) LoadModule: "synaptics"
[ 36.740] (II) Loading /usr/lib/xorg/modules/input/synaptics_drv.so
[ 37.190] (II) Module synaptics: vendor="X.Org Foundation"
[ 37.191] compiled for 1.16.0.901, module version = 1.8.99
[ 37.191] Module class: X.Org XInput Driver
ashok@localhost:~$ cinnamon --replace
JS LOG: About to start Cinnamon
Window manager warning: Trying to remove non-existent custom keybinding "magnifier-zoom-in".
Window manager warning: Trying to remove non-existent custom keybinding "magnifier-zoom-out".
(cinnamon:2234): Clutter-WARNING **: Attempting to add actor of type 'StBoxLayout' to a container of type 'StButton', but the actor has already a parent of type 'StButton'.
(cinnamon:2234): Clutter-WARNING **: Attempting to add actor of type 'StBoxLayout' to a container of type 'StButton', but the actor has already a parent of type 'StButton'.
(cinnamon:2234): Clutter-WARNING **: Attempting to add actor of type 'StBoxLayout' to a container of type 'StButton', but the actor has already a parent of type 'StButton'.
(cinnamon:2234): Clutter-WARNING **: Attempting to add actor of type 'StBoxLayout' to a container of type 'StButton', but the actor has already a parent of type 'StButton'.
Window manager warning: Trying to remove non-existent custom keybinding "gTile-close".
Window manager warning: Trying to remove non-existent custom keybinding "gTile-tile1".
Window manager warning: Trying to remove non-existent custom keybinding "gTile-tile2".
Window manager warning: Trying to remove non-existent custom keybinding "gTile-k-left".
Window manager warning: Trying to remove non-existent custom keybinding "gTile-k-right".
Window manager warning: Trying to remove non-existent custom keybinding "gTile-k-up".
Window manager warning: Trying to remove non-existent custom keybinding "gTile-k-down".
Window manager warning: Trying to remove non-existent custom keybinding "gTile-k-left-meta".
Window manager warning: Trying to remove non-existent custom keybinding "gTile-k-right-meta".
Window manager warning: Trying to remove non-existent custom keybinding "gTile-k-up-meta".
Window manager warning: Trying to remove non-existent custom keybinding "gTile-k-down-meta".
Window manager warning: Trying to remove non-existent custom keybinding "gTile".
JS LOG: Cinnamon started at Mon Jun 12 2017 18:15:12 GMT+0530 (IST)
(cinnamon:2234): St-CRITICAL **: st_widget_get_theme_node called on the widget [0x55bfa686abd0 StBoxLayout.menu-selected-app-box] which is not in the stage.
JS LOG: network applet: Cannot find connection for active (or connection cannot be read)
JS ERROR: !!! WARNING: 'property name az appears more than once in object literal'
JS ERROR: !!! WARNING: file '/home/ashok/.local/share/cinnamon/desklets/bbcwx@oak-wood.co.uk/desklet.js' line 3261 exception 0 number 234
Window manager warning: Log level 16: Symbolic icon /usr/share/cinnamon/applets/notifications@cinnamon.org/empty-notif-symbolic.svg is not in an icon theme directory
Window manager warning: Log level 16: Symbolic icon /usr/share/cinnamon/applets/windows-quick-list@cinnamon.org/windows-quick-list-symbolic.svg is not in an icon theme directory
[ 26.491] X.Org X Server 1.16.4 Release Date: 2014-12-20 [ 26.491] X Protocol Version 11, Revision 0 [ 26.491] Build Operating System: Linux 3.16.0-4-amd64 x86_64 Debian [ 26.491] Current Operating System: Linux localhost 3.16.0-4-amd64 #1 SMP Debian 3.16.43-2 (2017-04-30) x86_64 [ 26.491] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.16.0-4-amd64 root=UUID=5c59177a-125e-4a7f-b466-c113e6a4629e ro quiet [ 26.491] Build Date: 11 February 2015 12:32:02AM [ 26.491] xorg-server 2:1.16.4-1 (http://www.debian.org/support) [ 26.491] Current version of pixman: 0.32.6 [ 26.491] Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. [ 26.491] Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [ 26.491] (==) Log file: "/var/log/Xorg.0.log", Time: Mon Jun 12 18:10:23 2017 [ 26.555] (==) Using system config directory "/usr/share/X11/xorg.conf.d" [ 27.076] (==) No Layout section. Using the first Screen section. [ 27.076] (==) No screen section available. Using defaults. [ 27.076] (**) |-->Screen "Default Screen Section" (0) [ 27.076] (**) | |-->Monitor "<default monitor>" [ 27.076] (==) No monitor specified for screen "Default Screen Section". Using a default monitor configuration. [ 27.076] (==) Automatically adding devices [ 27.077] (==) Automatically enabling devices [ 27.077] (==) Automatically adding GPU devices [ 27.497] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. [ 27.497] Entry deleted from font path. [ 27.707] (==) FontPath set to: /usr/share/fonts/X11/misc, /usr/share/fonts/X11/100dpi/:unscaled, /usr/share/fonts/X11/75dpi/:unscaled, /usr/share/fonts/X11/Type1, /usr/share/fonts/X11/100dpi, /usr/share/fonts/X11/75dpi, built-ins [ 27.707] (==) ModulePath set to "/usr/lib/xorg/modules" [ 27.707] (II) The server relies on udev to provide the list of input devices. If no devices become available, reconfigure udev or disable AutoAddDevices. [ 27.707] (II) Loader magic: 0x55cb1eed1d80 [ 27.707] (II) Module ABI versions: [ 27.707] X.Org ANSI C Emulation: 0.4 [ 27.707] X.Org Video Driver: 18.0 [ 27.707] X.Org XInput driver : 21.0 [ 27.707] X.Org Server Extension : 8.0 [ 27.708] (II) xfree86: Adding drm device (/dev/dri/card0) [ 27.710] (--) PCI:*(0:0:2:0) 8086:2a02:1028:022f rev 12, Mem @ 0xfea00000/1048576, 0xe0000000/268435456, I/O @ 0x0000eff8/8 [ 27.710] (--) PCI: (0:0:2:1) 8086:2a03:1028:022f rev 12, Mem @ 0xfeb00000/1048576 [ 27.710] (II) LoadModule: "glx" [ 27.710] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so [ 28.988] (II) Module glx: vendor="X.Org Foundation" [ 28.988] compiled for 1.16.4, module version = 1.0.0 [ 28.988] ABI class: X.Org Server Extension, version 8.0 [ 28.988] (==) AIGLX enabled [ 28.988] (==) Matched intel as autoconfigured driver 0 [ 28.988] (==) Matched intel as autoconfigured driver 1 [ 28.988] (==) Matched modesetting as autoconfigured driver 2 [ 28.988] (==) Matched fbdev as autoconfigured driver 3 [ 28.988] (==) Matched vesa as autoconfigured driver 4 [ 28.988] (==) Assigned the driver to the xf86ConfigLayout [ 28.988] (II) LoadModule: "intel" [ 29.168] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so [ 29.676] (II) Module intel: vendor="X.Org Foundation" [ 29.676] compiled for 1.15.99.904, module version = 2.21.15 [ 29.676] Module class: X.Org Video Driver [ 29.676] ABI class: X.Org Video Driver, version 18.0 [ 29.676] (II) LoadModule: "modesetting" [ 29.871] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so [ 30.245] (II) Module modesetting: vendor="X.Org Foundation" [ 30.245] compiled for 1.16.4, module version = 0.9.0 [ 30.245] Module class: X.Org Video Driver [ 30.245] ABI class: X.Org Video Driver, version 18.0 [ 30.245] (II) LoadModule: "fbdev" [ 30.245] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so [ 30.468] (II) Module fbdev: vendor="X.Org Foundation" [ 30.468] compiled for 1.15.99.904, module version = 0.4.4 [ 30.468] Module class: X.Org Video Driver [ 30.468] ABI class: X.Org Video Driver, version 18.0 [ 30.468] (II) LoadModule: "vesa" [ 30.891] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so [ 31.117] (II) Module vesa: vendor="X.Org Foundation" [ 31.117] compiled for 1.15.99.904, module version = 2.3.3 [ 31.117] Module class: X.Org Video Driver [ 31.117] ABI class: X.Org Video Driver, version 18.0 [ 31.118] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets: i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G, 915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM, Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33, GM45, 4 Series, G45/G43, Q45/Q43, G41, B43, HD Graphics, HD Graphics 2000, HD Graphics 3000, HD Graphics 2500, HD Graphics 4000, HD Graphics P4000, HD Graphics 4600, HD Graphics 5000, HD Graphics P4600/P4700, Iris(TM) Graphics 5100, HD Graphics 4400, HD Graphics 4200, Iris(TM) Pro Graphics 5200 [ 31.118] (II) modesetting: Driver for Modesetting Kernel Drivers: kms [ 31.118] (II) FBDEV: driver for framebuffer: fbdev [ 31.118] (II) VESA: driver for VESA chipsets: vesa [ 31.118] (++) using VT number 7 [ 31.122] (WW) Falling back to old probe method for modesetting [ 31.122] (WW) Falling back to old probe method for fbdev [ 31.122] (II) Loading sub module "fbdevhw" [ 31.122] (II) LoadModule: "fbdevhw" [ 31.122] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so [ 31.183] (II) Module fbdevhw: vendor="X.Org Foundation" [ 31.183] compiled for 1.16.4, module version = 0.0.2 [ 31.183] ABI class: X.Org Video Driver, version 18.0 [ 31.183] (WW) Falling back to old probe method for vesa [ 31.183] (II) intel(0): Creating default Display subsection in Screen section "Default Screen Section" for depth/fbbpp 24/32 [ 31.183] (==) intel(0): Depth 24, (--) framebuffer bpp 32 [ 31.183] (==) intel(0): RGB weight 888 [ 31.183] (==) intel(0): Default visual is TrueColor [ 31.183] (--) intel(0): Integrated Graphics Chipset: Intel(R) 965GM [ 31.184] (**) intel(0): Relaxed fencing enabled [ 31.184] (**) intel(0): Wait on SwapBuffers? enabled [ 31.184] (**) intel(0): Triple buffering? enabled [ 31.184] (**) intel(0): Framebuffer tiled [ 31.184] (**) intel(0): Pixmaps tiled [ 31.184] (**) intel(0): 3D buffers tiled [ 31.184] (**) intel(0): SwapBuffers wait enabled [ 31.184] (==) intel(0): video overlay key set to 0x101fe [ 31.184] (II) intel(0): Output LVDS1 has no monitor section [ 31.185] (--) intel(0): found backlight control interface /sys/class/backlight/acpi_video0 [ 31.216] (II) intel(0): Output VGA1 has no monitor section [ 31.225] (II) intel(0): Output HDMI1 has no monitor section [ 31.401] (II) intel(0): Output TV1 has no monitor section [ 31.401] (II) intel(0): EDID for output LVDS1 [ 31.401] (II) intel(0): Manufacturer: SEC Model: 3358 Serial#: 0 [ 31.401] (II) intel(0): Year: 2008 Week: 0 [ 31.401] (II) intel(0): EDID Version: 1.3 [ 31.401] (II) intel(0): Digital Display Input [ 31.401] (II) intel(0): Max Image Size [cm]: horiz.: 33 vert.: 21 [ 31.401] (II) intel(0): Gamma: 2.20 [ 31.401] (II) intel(0): No DPMS capabilities specified [ 31.401] (II) intel(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 [ 31.401] (II) intel(0): First detailed timing is preferred mode [ 31.401] (II) intel(0): redX: 0.580 redY: 0.340 greenX: 0.310 greenY: 0.550 [ 31.401] (II) intel(0): blueX: 0.155 blueY: 0.155 whiteX: 0.313 whiteY: 0.329 [ 31.401] (II) intel(0): Manufacturer's mask: 0 [ 31.401] (II) intel(0): Supported detailed timing: [ 31.401] (II) intel(0): clock: 71.3 MHz Image Size: 331 x 207 mm [ 31.401] (II) intel(0): h_active: 1280 h_sync: 1296 h_sync_end 1344 h_blank_end 1424 h_border: 0 [ 31.401] (II) intel(0): v_active: 800 v_sync: 801 v_sync_end 804 v_blanking: 834 v_border: 0 [ 31.401] (II) intel(0): Unknown vendor-specific block f [ 31.401] (II) intel(0): X949H [ 31.401] (II) intel(0): &6@Gj?Æÿ [ 31.401] (II) intel(0): EDID (in hex): [ 31.401] (II) intel(0): 00ffffffffffff004ca3583300000000 [ 31.401] (II) intel(0): 00120103802115780a87f594574f8c27 [ 31.401] (II) intel(0): 27505400000001010101010101010101 [ 31.401] (II) intel(0): 010101010101d61b0090502022301030 [ 31.401] (II) intel(0): 13004bcf100000190000000f00000000 [ 31.401] (II) intel(0): 00000000002387026400000000fe0058 [ 31.401] (II) intel(0): 393439480031353458330a20000000fe [ 31.401] (II) intel(0): 00263640476a8fc6ff01010a20200084 [ 31.402] (II) intel(0): Not using default mode "320x240" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "400x300" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "400x300" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "512x384" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "640x480" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "640x512" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "800x600" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "896x672" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "928x696" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "960x720" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "576x432" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "680x384" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "680x384" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "700x525" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "720x450" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "800x512" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "840x525" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "840x525" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "960x540" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "960x600" (doublescan mode not supported) [ 31.402] (II) intel(0): Not using default mode "1024x768" (doublescan mode not supported) [ 31.402] (II) intel(0): Printing probed modes for output LVDS1 [ 31.402] (II) intel(0): Modeline "1280x800"x60.0 71.26 1280 1296 1344 1424 800 801 804 834 -hsync -vsync (50.0 kHz eP) [ 31.402] (II) intel(0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz d) [ 31.402] (II) intel(0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz d) [ 31.402] (II) intel(0): Modeline "800x600"x56.2 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz d) [ 31.402] (II) intel(0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz d) [ 31.440] (II) intel(0): EDID for output VGA1 [ 31.449] (II) intel(0): EDID for output HDMI1 [ 31.621] (II) intel(0): EDID for output TV1 [ 31.621] (II) intel(0): Output LVDS1 connected [ 31.621] (II) intel(0): Output VGA1 disconnected [ 31.621] (II) intel(0): Output HDMI1 disconnected [ 31.621] (II) intel(0): Output TV1 disconnected [ 31.621] (II) intel(0): Using exact sizes for initial modes [ 31.621] (II) intel(0): Output LVDS1 using initial mode 1280x800 [ 31.621] (II) intel(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated. [ 31.621] (II) intel(0): Kernel page flipping support detected, enabling [ 31.621] (==) intel(0): DPI set to (96, 96) [ 31.621] (II) Loading sub module "fb" [ 31.621] (II) LoadModule: "fb" [ 31.621] (II) Loading /usr/lib/xorg/modules/libfb.so [ 32.001] (II) Module fb: vendor="X.Org Foundation" [ 32.001] compiled for 1.16.4, module version = 1.0.0 [ 32.001] ABI class: X.Org ANSI C Emulation, version 0.4 [ 32.001] (II) Loading sub module "dri2" [ 32.001] (II) LoadModule: "dri2" [ 32.001] (II) Module "dri2" already built-in [ 32.001] (II) UnloadModule: "modesetting" [ 32.001] (II) Unloading modesetting [ 32.001] (II) UnloadModule: "fbdev" [ 32.001] (II) Unloading fbdev [ 32.001] (II) UnloadSubModule: "fbdevhw" [ 32.001] (II) Unloading fbdevhw [ 32.001] (II) UnloadModule: "vesa" [ 32.001] (II) Unloading vesa [ 32.001] (==) Depth 24 pixmap format is 32 bpp [ 32.001] (II) intel(0): [DRI2] Setup complete [ 32.001] (II) intel(0): [DRI2] DRI driver: i965 [ 32.001] (II) intel(0): Allocated new frame buffer 1280x800 stride 5120, tiled [ 32.012] (II) UXA(0): Driver registered support for the following operations: [ 32.012] (II) solid [ 32.012] (II) copy [ 32.012] (II) composite (RENDER acceleration) [ 32.012] (II) put_image [ 32.012] (II) get_image [ 32.012] (==) intel(0): Backing store enabled [ 32.012] (==) intel(0): Silken mouse enabled [ 32.012] (II) intel(0): Initializing HW Cursor [ 32.012] (II) intel(0): RandR 1.2 enabled, ignore the following RandR disabled message. [ 32.016] (==) intel(0): DPMS enabled [ 32.016] (==) intel(0): Intel XvMC decoder enabled [ 32.016] (II) intel(0): Set up textured video [ 32.016] (II) intel(0): Set up overlay video [ 32.016] (II) intel(0): [XvMC] i965_xvmc driver initialized. [ 32.016] (II) intel(0): direct rendering: DRI2 Enabled [ 32.016] (==) intel(0): hotplug detection: "enabled" [ 32.828] (--) RandR disabled [ 32.835] (II) SELinux: Disabled on system [ 34.053] (II) AIGLX: enabled GLX_MESA_copy_sub_buffer [ 34.053] (II) AIGLX: enabled GLX_ARB_create_context [ 34.053] (II) AIGLX: enabled GLX_ARB_create_context_profile [ 34.053] (II) AIGLX: enabled GLX_EXT_create_context_es2_profile [ 34.053] (II) AIGLX: enabled GLX_INTEL_swap_event [ 34.053] (II) AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control [ 34.053] (II) AIGLX: enabled GLX_EXT_framebuffer_sRGB [ 34.053] (II) AIGLX: enabled GLX_ARB_fbconfig_float [ 34.053] (II) AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects [ 34.053] (II) AIGLX: Loaded and initialized i965 [ 34.053] (II) GLX: Initialized DRI2 GL provider for screen 0 [ 34.053] (II) intel(0): Setting screen physical size to 338 x 211 [ 36.547] (II) config/udev: Adding input device Video Bus (/dev/input/event17) [ 36.547] (**) Video Bus: Applying InputClass "evdev keyboard catchall" [ 36.547] (II) LoadModule: "evdev" [ 36.591] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so [ 36.728] (II) Module evdev: vendor="X.Org Foundation" [ 36.728] compiled for 1.16.0, module version = 2.9.0 [ 36.728] Module class: X.Org XInput Driver [ 36.729] ABI class: X.Org XInput driver, version 21.0 [ 36.729] (II) Using input driver 'evdev' for 'Video Bus' [ 36.729] (**) Video Bus: always reports core events [ 36.729] (**) evdev: Video Bus: Device: "/dev/input/event17" [ 36.729] (--) evdev: Video Bus: Vendor 0 Product 0x6 [ 36.729] (--) evdev: Video Bus: Found keys [ 36.729] (II) evdev: Video Bus: Configuring as keyboard [ 36.729] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/LNXVIDEO:00/input/input24/event17" [ 36.729] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD, id 6) [ 36.729] (**) Option "xkb_rules" "evdev" [ 36.729] (**) Option "xkb_model" "pc105" [ 36.729] (**) Option "xkb_layout" "us" [ 36.729] (II) config/udev: Adding input device Power Button (/dev/input/event8) [ 36.729] (**) Power Button: Applying InputClass "evdev keyboard catchall" [ 36.729] (II) Using input driver 'evdev' for 'Power Button' [ 36.730] (**) Power Button: always reports core events [ 36.730] (**) evdev: Power Button: Device: "/dev/input/event8" [ 36.730] (--) evdev: Power Button: Vendor 0 Product 0x1 [ 36.730] (--) evdev: Power Button: Found keys [ 36.730] (II) evdev: Power Button: Configuring as keyboard [ 36.730] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input15/event8" [ 36.730] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 7) [ 36.730] (**) Option "xkb_rules" "evdev" [ 36.730] (**) Option "xkb_model" "pc105" [ 36.730] (**) Option "xkb_layout" "us" [ 36.730] (II) config/udev: Adding input device Lid Switch (/dev/input/event7) [ 36.730] (II) No input driver specified, ignoring this device. [ 36.730] (II) This device may have been added with another device file. [ 36.730] (II) config/udev: Adding input device Sleep Button (/dev/input/event9) [ 36.731] (**) Sleep Button: Applying InputClass "evdev keyboard catchall" [ 36.731] (II) Using input driver 'evdev' for 'Sleep Button' [ 36.731] (**) Sleep Button: always reports core events [ 36.731] (**) evdev: Sleep Button: Device: "/dev/input/event9" [ 36.731] (--) evdev: Sleep Button: Vendor 0 Product 0x3 [ 36.731] (--) evdev: Sleep Button: Found keys [ 36.731] (II) evdev: Sleep Button: Configuring as keyboard [ 36.731] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input16/event9" [ 36.731] (II) XINPUT: Adding extended input device "Sleep Button" (type: KEYBOARD, id 8) [ 36.731] (**) Option "xkb_rules" "evdev" [ 36.731] (**) Option "xkb_model" "pc105" [ 36.731] (**) Option "xkb_layout" "us" [ 36.732] (II) config/udev: Adding input device Laptop Integrated Webcam (/dev/input/event15) [ 36.732] (**) Laptop Integrated Webcam: Applying InputClass "evdev keyboard catchall" [ 36.732] (II) Using input driver 'evdev' for 'Laptop Integrated Webcam' [ 36.732] (**) Laptop Integrated Webcam: always reports core events [ 36.732] (**) evdev: Laptop Integrated Webcam: Device: "/dev/input/event15" [ 36.732] (--) evdev: Laptop Integrated Webcam: Vendor 0x5a9 Product 0x2640 [ 36.732] (--) evdev: Laptop Integrated Webcam: Found keys [ 36.732] (II) evdev: Laptop Integrated Webcam: Configuring as keyboard [ 36.732] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1a.7/usb1/1-1/1-1:1.0/input/input22/event15" [ 36.732] (II) XINPUT: Adding extended input device "Laptop Integrated Webcam" (type: KEYBOARD, id 9) [ 36.732] (**) Option "xkb_rules" "evdev" [ 36.732] (**) Option "xkb_model" "pc105" [ 36.732] (**) Option "xkb_layout" "us" [ 36.732] (II) config/udev: Adding input device HDA Digital PCBeep (/dev/input/event10) [ 36.732] (II) No input driver specified, ignoring this device. [ 36.732] (II) This device may have been added with another device file. [ 36.733] (II) config/udev: Adding input device HDA Intel HDMI/DP,pcm=3 (/dev/input/event11) [ 36.733] (II) No input driver specified, ignoring this device. [ 36.733] (II) This device may have been added with another device file. [ 36.733] (II) config/udev: Adding input device HDA Intel Front Headphone Front (/dev/input/event12) [ 36.733] (II) No input driver specified, ignoring this device. [ 36.733] (II) This device may have been added with another device file. [ 36.733] (II) config/udev: Adding input device HDA Intel Front Headphone Surround (/dev/input/event13) [ 36.733] (II) No input driver specified, ignoring this device. [ 36.733] (II) This device may have been added with another device file. [ 36.734] (II) config/udev: Adding input device Logitech USB Receiver (/dev/input/event3) [ 36.734] (**) Logitech USB Receiver: Applying InputClass "evdev pointer catchall" [ 36.734] (II) Using input driver 'evdev' for 'Logitech USB Receiver' [ 36.734] (**) Logitech USB Receiver: always reports core events [ 36.734] (**) evdev: Logitech USB Receiver: Device: "/dev/input/event3" [ 36.734] (--) evdev: Logitech USB Receiver: Vendor 0x46d Product 0xc52f [ 36.734] (--) evdev: Logitech USB Receiver: Found 20 mouse buttons [ 36.734] (--) evdev: Logitech USB Receiver: Found scroll wheel(s) [ 36.734] (--) evdev: Logitech USB Receiver: Found relative axes [ 36.734] (--) evdev: Logitech USB Receiver: Found x and y relative axes [ 36.734] (II) evdev: Logitech USB Receiver: Configuring as mouse [ 36.734] (II) evdev: Logitech USB Receiver: Adding scrollwheel support [ 36.734] (**) evdev: Logitech USB Receiver: YAxisMapping: buttons 4 and 5 [ 36.734] (**) evdev: Logitech USB Receiver: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200 [ 36.734] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.1/usb5/5-1/5-1:1.0/0003:046D:C52F.0001/input/input10/event3" [ 36.734] (II) XINPUT: Adding extended input device "Logitech USB Receiver" (type: MOUSE, id 10) [ 36.734] (II) evdev: Logitech USB Receiver: initialized for relative axes. [ 36.734] (**) Logitech USB Receiver: (accel) keeping acceleration scheme 1 [ 36.734] (**) Logitech USB Receiver: (accel) acceleration profile 0 [ 36.734] (**) Logitech USB Receiver: (accel) acceleration factor: 2.000 [ 36.734] (**) Logitech USB Receiver: (accel) acceleration threshold: 4 [ 36.735] (II) config/udev: Adding input device Logitech USB Receiver (/dev/input/mouse2) [ 36.735] (II) No input driver specified, ignoring this device. [ 36.735] (II) This device may have been added with another device file. [ 36.735] (II) config/udev: Adding input device Logitech USB Receiver (/dev/input/event4) [ 36.735] (**) Logitech USB Receiver: Applying InputClass "evdev keyboard catchall" [ 36.735] (II) Using input driver 'evdev' for 'Logitech USB Receiver' [ 36.735] (**) Logitech USB Receiver: always reports core events [ 36.735] (**) evdev: Logitech USB Receiver: Device: "/dev/input/event4" [ 36.735] (--) evdev: Logitech USB Receiver: Vendor 0x46d Product 0xc52f [ 36.735] (--) evdev: Logitech USB Receiver: Found 1 mouse buttons [ 36.735] (--) evdev: Logitech USB Receiver: Found scroll wheel(s) [ 36.735] (--) evdev: Logitech USB Receiver: Found relative axes [ 36.735] (II) evdev: Logitech USB Receiver: Forcing relative x/y axes to exist. [ 36.735] (--) evdev: Logitech USB Receiver: Found absolute axes [ 36.735] (II) evdev: Logitech USB Receiver: Forcing absolute x/y axes to exist. [ 36.735] (--) evdev: Logitech USB Receiver: Found keys [ 36.735] (II) evdev: Logitech USB Receiver: Configuring as mouse [ 36.735] (II) evdev: Logitech USB Receiver: Configuring as keyboard [ 36.735] (II) evdev: Logitech USB Receiver: Adding scrollwheel support [ 36.735] (**) evdev: Logitech USB Receiver: YAxisMapping: buttons 4 and 5 [ 36.735] (**) evdev: Logitech USB Receiver: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200 [ 36.735] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.1/usb5/5-1/5-1:1.1/0003:046D:C52F.0002/input/input11/event4" [ 36.735] (II) XINPUT: Adding extended input device "Logitech USB Receiver" (type: KEYBOARD, id 11) [ 36.735] (**) Option "xkb_rules" "evdev" [ 36.735] (**) Option "xkb_model" "pc105" [ 36.735] (**) Option "xkb_layout" "us" [ 36.736] (II) evdev: Logitech USB Receiver: initialized for relative axes. [ 36.736] (WW) evdev: Logitech USB Receiver: ignoring absolute axes. [ 36.736] (**) Logitech USB Receiver: (accel) keeping acceleration scheme 1 [ 36.736] (**) Logitech USB Receiver: (accel) acceleration profile 0 [ 36.736] (**) Logitech USB Receiver: (accel) acceleration factor: 2.000 [ 36.736] (**) Logitech USB Receiver: (accel) acceleration threshold: 4 [ 36.736] (II) config/udev: Adding input device Broadcom Corp (/dev/input/event5) [ 36.736] (**) Broadcom Corp: Applying InputClass "evdev keyboard catchall" [ 36.737] (II) Using input driver 'evdev' for 'Broadcom Corp' [ 36.737] (**) Broadcom Corp: always reports core events [ 36.737] (**) evdev: Broadcom Corp: Device: "/dev/input/event5" [ 36.737] (--) evdev: Broadcom Corp: Vendor 0xa5c Product 0x4502 [ 36.737] (--) evdev: Broadcom Corp: Found keys [ 36.737] (II) evdev: Broadcom Corp: Configuring as keyboard [ 36.737] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.2/usb6/6-2/6-2.2/6-2.2:1.0/0003:0A5C:4502.0003/input/input12/event5" [ 36.737] (II) XINPUT: Adding extended input device "Broadcom Corp" (type: KEYBOARD, id 12) [ 36.737] (**) Option "xkb_rules" "evdev" [ 36.737] (**) Option "xkb_model" "pc105" [ 36.737] (**) Option "xkb_layout" "us" [ 36.737] (II) config/udev: Adding input device Broadcom Corp (/dev/input/event6) [ 36.737] (**) Broadcom Corp: Applying InputClass "evdev pointer catchall" [ 36.737] (II) Using input driver 'evdev' for 'Broadcom Corp' [ 36.737] (**) Broadcom Corp: always reports core events [ 36.737] (**) evdev: Broadcom Corp: Device: "/dev/input/event6" [ 36.737] (--) evdev: Broadcom Corp: Vendor 0xa5c Product 0x4503 [ 36.737] (--) evdev: Broadcom Corp: Found 3 mouse buttons [ 36.737] (--) evdev: Broadcom Corp: Found relative axes [ 36.737] (--) evdev: Broadcom Corp: Found x and y relative axes [ 36.738] (II) evdev: Broadcom Corp: Configuring as mouse [ 36.738] (**) evdev: Broadcom Corp: YAxisMapping: buttons 4 and 5 [ 36.738] (**) evdev: Broadcom Corp: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200 [ 36.738] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.2/usb6/6-2/6-2.3/6-2.3:1.0/0003:0A5C:4503.0004/input/input13/event6" [ 36.738] (II) XINPUT: Adding extended input device "Broadcom Corp" (type: MOUSE, id 13) [ 36.738] (II) evdev: Broadcom Corp: initialized for relative axes. [ 36.738] (**) Broadcom Corp: (accel) keeping acceleration scheme 1 [ 36.738] (**) Broadcom Corp: (accel) acceleration profile 0 [ 36.738] (**) Broadcom Corp: (accel) acceleration factor: 2.000 [ 36.738] (**) Broadcom Corp: (accel) acceleration threshold: 4 [ 36.738] (II) config/udev: Adding input device Broadcom Corp (/dev/input/mouse3) [ 36.738] (II) No input driver specified, ignoring this device. [ 36.738] (II) This device may have been added with another device file. [ 36.739] (II) config/udev: Adding input device AT Translated Set 2 keyboard (/dev/input/event0) [ 36.739] (**) AT Translated Set 2 keyboard: Applying InputClass "evdev keyboard catchall" [ 36.739] (II) Using input driver 'evdev' for 'AT Translated Set 2 keyboard' [ 36.739] (**) AT Translated Set 2 keyboard: always reports core events [ 36.739] (**) evdev: AT Translated Set 2 keyboard: Device: "/dev/input/event0" [ 36.739] (--) evdev: AT Translated Set 2 keyboard: Vendor 0x1 Product 0x1 [ 36.739] (--) evdev: AT Translated Set 2 keyboard: Found keys [ 36.739] (II) evdev: AT Translated Set 2 keyboard: Configuring as keyboard [ 36.739] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio0/input/input0/event0" [ 36.739] (II) XINPUT: Adding extended input device "AT Translated Set 2 keyboard" (type: KEYBOARD, id 14) [ 36.739] (**) Option "xkb_rules" "evdev" [ 36.739] (**) Option "xkb_model" "pc105" [ 36.739] (**) Option "xkb_layout" "us" [ 36.739] (II) config/udev: Adding input device AlpsPS/2 ALPS GlidePoint (/dev/input/event2) [ 36.739] (**) AlpsPS/2 ALPS GlidePoint: Applying InputClass "evdev touchpad catchall" [ 36.739] (**) AlpsPS/2 ALPS GlidePoint: Applying InputClass "touchpad catchall" [ 36.739] (**) AlpsPS/2 ALPS GlidePoint: Applying InputClass "Default clickpad buttons" [ 36.739] (II) LoadModule: "synaptics" [ 36.740] (II) Loading /usr/lib/xorg/modules/input/synaptics_drv.so [ 37.190] (II) Module synaptics: vendor="X.Org Foundation" [ 37.191] compiled for 1.16.0.901, module version = 1.8.99 [ 37.191] Module class: X.Org XInput Driver [ 37.191] ABI class: X.Org XInput driver, version 21.0 [ 37.191] (II) Using input driver 'synaptics' for 'AlpsPS/2 ALPS GlidePoint' [ 37.191] (**) AlpsPS/2 ALPS GlidePoint: always reports core events [ 37.191] (**) Option "Device" "/dev/input/event2" [ 37.220] (--) synaptics: AlpsPS/2 ALPS GlidePoint: x-axis range 0 - 1023 (res 0) [ 37.220] (--) synaptics: AlpsPS/2 ALPS GlidePoint: y-axis range 0 - 767 (res 0) [ 37.220] (--) synaptics: AlpsPS/2 ALPS GlidePoint: pressure range 0 - 127 [ 37.220] (II) synaptics: AlpsPS/2 ALPS GlidePoint: device does not report finger width. [ 37.220] (--) synaptics: AlpsPS/2 ALPS GlidePoint: buttons: left right middle [ 37.220] (--) synaptics: AlpsPS/2 ALPS GlidePoint: Vendor 0x2 Product 0x8 [ 37.220] (--) synaptics: AlpsPS/2 ALPS GlidePoint: invalid finger width range. defaulting to 0 - 15 [ 37.220] (--) synaptics: AlpsPS/2 ALPS GlidePoint: touchpad found [ 37.220] (**) AlpsPS/2 ALPS GlidePoint: always reports core events [ 37.252] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio2/input/input6/event2" [ 37.252] (II) XINPUT: Adding extended input device "AlpsPS/2 ALPS GlidePoint" (type: TOUCHPAD, id 15) [ 37.252] (**) synaptics: AlpsPS/2 ALPS GlidePoint: (accel) MinSpeed is now constant deceleration 2.5 [ 37.252] (**) synaptics: AlpsPS/2 ALPS GlidePoint: (accel) MaxSpeed is now 1.75 [ 37.252] (**) synaptics: AlpsPS/2 ALPS GlidePoint: (accel) AccelFactor is now 0.156 [ 37.252] (**) AlpsPS/2 ALPS GlidePoint: (accel) keeping acceleration scheme 1 [ 37.252] (**) AlpsPS/2 ALPS GlidePoint: (accel) acceleration profile 1 [ 37.252] (**) AlpsPS/2 ALPS GlidePoint: (accel) acceleration factor: 2.000 [ 37.252] (**) AlpsPS/2 ALPS GlidePoint: (accel) acceleration threshold: 4 [ 37.252] (--) synaptics: AlpsPS/2 ALPS GlidePoint: touchpad found [ 37.253] (II) config/udev: Adding input device AlpsPS/2 ALPS GlidePoint (/dev/input/mouse1) [ 37.253] (**) AlpsPS/2 ALPS GlidePoint: Ignoring device from InputClass "touchpad ignore duplicates" [ 37.253] (II) config/udev: Adding input device ALPS PS/2 Device (/dev/input/event1) [ 37.253] (**) ALPS PS/2 Device: Applying InputClass "evdev pointer catchall" [ 37.253] (II) Using input driver 'evdev' for 'ALPS PS/2 Device' [ 37.253] (**) ALPS PS/2 Device: always reports core events [ 37.253] (**) evdev: ALPS PS/2 Device: Device: "/dev/input/event1" [ 37.253] (--) evdev: ALPS PS/2 Device: Vendor 0x2 Product 0x8 [ 37.253] (--) evdev: ALPS PS/2 Device: Found 3 mouse buttons [ 37.253] (--) evdev: ALPS PS/2 Device: Found relative axes [ 37.253] (--) evdev: ALPS PS/2 Device: Found x and y relative axes [ 37.253] (II) evdev: ALPS PS/2 Device: Configuring as mouse [ 37.253] (**) evdev: ALPS PS/2 Device: YAxisMapping: buttons 4 and 5 [ 37.253] (**) evdev: ALPS PS/2 Device: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200 [ 37.253] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio2/input/input7/event1" [ 37.253] (II) XINPUT: Adding extended input device "ALPS PS/2 Device" (type: MOUSE, id 16) [ 37.253] (II) evdev: ALPS PS/2 Device: initialized for relative axes. [ 37.253] (**) ALPS PS/2 Device: (accel) keeping acceleration scheme 1 [ 37.253] (**) ALPS PS/2 Device: (accel) acceleration profile 0 [ 37.253] (**) ALPS PS/2 Device: (accel) acceleration factor: 2.000 [ 37.253] (**) ALPS PS/2 Device: (accel) acceleration threshold: 4 [ 37.254] (II) config/udev: Adding input device ALPS PS/2 Device (/dev/input/mouse0) [ 37.254] (II) No input driver specified, ignoring this device. [ 37.254] (II) This device may have been added with another device file. [ 37.254] (II) config/udev: Adding input device PC Speaker (/dev/input/event14) [ 37.254] (II) No input driver specified, ignoring this device. [ 37.254] (II) This device may have been added with another device file. [ 37.255] (II) config/udev: Adding input device Dell WMI hotkeys (/dev/input/event16) [ 37.255] (**) Dell WMI hotkeys: Applying InputClass "evdev keyboard catchall" [ 37.255] (II) Using input driver 'evdev' for 'Dell WMI hotkeys' [ 37.255] (**) Dell WMI hotkeys: always reports core events [ 37.255] (**) evdev: Dell WMI hotkeys: Device: "/dev/input/event16" [ 37.255] (--) evdev: Dell WMI hotkeys: Vendor 0 Product 0 [ 37.255] (--) evdev: Dell WMI hotkeys: Found keys [ 37.255] (II) evdev: Dell WMI hotkeys: Configuring as keyboard [ 37.255] (**) Option "config_info" "udev:/sys/devices/virtual/input/input23/event16" [ 37.255] (II) XINPUT: Adding extended input device "Dell WMI hotkeys" (type: KEYBOARD, id 17) [ 37.255] (**) Option "xkb_rules" "evdev" [ 37.255] (**) Option "xkb_model" "pc105" [ 37.255] (**) Option "xkb_layout" "us" [ 56.528] (II) AIGLX: Suspending AIGLX clients for VT switch [ 209.990] (II) AIGLX: Resuming AIGLX clients after VT switch [ 210.877] (II) intel(0): EDID vendor "SEC", prod id 13144 [ 210.877] (II) intel(0): Printing DDC gathered Modelines: [ 210.877] (II) intel(0): Modeline "1280x800"x0.0 71.26 1280 1296 1344 1424 800 801 804 834 -hsync -vsync (50.0 kHz eP) [ 211.095] (--) synaptics: AlpsPS/2 ALPS GlidePoint: touchpad found [ 216.642] (II) intel(0): EDID vendor "SEC", prod id 13144 [ 216.642] (II) intel(0): Printing DDC gathered Modelines: [ 216.642] (II) intel(0): Modeline "1280x800"x0.0 71.26 1280 1296 1344 1424 800 801 804 834 -hsync -vsync (50.0 kHz eP) [ 218.040] (II) intel(0): EDID vendor "SEC", prod id 13144 [ 218.040] (II) intel(0): Printing DDC gathered Modelines: [ 218.040] (II) intel(0): Modeline "1280x800"x0.0 71.26 1280 1296 1344 1424 800 801 804 834 -hsync -vsync (50.0 kHz eP) [ 222.128] (II) intel(0): EDID vendor "SEC", prod id 13144 [ 222.128] (II) intel(0): Printing DDC gathered Modelines: [ 222.128] (II) intel(0): Modeline "1280x800"x0.0 71.26 1280 1296 1344 1424 800 801 804 834 -hsync -vsync (50.0 kHz eP) [ 223.241] (II) intel(0): EDID vendor "SEC", prod id 13144 [ 223.241] (II) intel(0): Printing DDC gathered Modelines: [ 223.241] (II) intel(0): Modeline "1280x800"x0.0 71.26 1280 1296 1344 1424 800 801 804 834 -hsync -vsync (50.0 kHz eP) [ 243.890] (II) intel(0): EDID vendor "SEC", prod id 13144 [ 243.890] (II) intel(0): Printing DDC gathered Modelines: [ 243.890] (II) intel(0): Modeline "1280x800"x0.0 71.26 1280 1296 1344 1424 800 801 804 834 -hsync -vsync (50.0 kHz eP) [ 314.167] (II) intel(0): EDID vendor "SEC", prod id 13144 [ 314.167] (II) intel(0): Printing DDC gathered Modelines: [ 314.167] (II) intel(0): Modeline "1280x800"x0.0 71.26 1280 1296 1344 1424 800 801 804 834 -hsync -vsync (50.0 kHz eP) [ 314.916] (II) intel(0): EDID vendor "SEC", prod id 13144 [ 314.916] (II) intel(0): Printing DDC gathered Modelines: [ 314.916] (II) intel(0): Modeline "1280x800"x0.0 71.26 1280 1296 1344 1424 800 801 804 834 -hsync -vsync (50.0 kHz eP)
Attachment:
0x66F36A7D.asc
Description: application/pgp-keys
Attachment:
signature.asc
Description: OpenPGP digital signature