Re: direct rendering on i845G chipset
hi,
No, you're confusing kernel modules with X modules. You can't load X
modules into the kernel and vice versa.
ok, thanks for clarification.
firstly, i get this in my dmesg
...
Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Detected an Intel 845G Chipset.
agpgart: Detected 8060K stolen memory.
agpgart: AGP aperture is 128M @ 0xd8000000
...
this is probably related to the fact that i have 8mb memory reserved for
agp in bios. am i right? and is that message ok? iirc, setting it to 1mb
(the only other option) didn't allow me to run x with desired
resolution/color depth when i tried in the past...
Based upon your chipset, you'll need to modprobe i830. You may also need
the "intel_agp", "agpgart" and "drm" modules loaded, but modprobe i830
should take care of that for you.
i recompiled the kernel to have all of these as modules (i had them
compiled to the kernel). after modprobing i830 (or i915, respectively -
in 2.6.12 both of these are available for the i845G chipset) i get
# modprobe i830
ACPI: PCI Interrupt 0000:00:02.0[A] -> GSI 16 (level, low) -> IRQ 16
mtrr: 0xd8000000,0x8000000 overlaps existing 0xd8000000,0x400000
[drm] Initialized i915 1.1.0 20040405 on minor 0: Intel Corporation
82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device
# lsmod
Module Size Used by
i830 29248 0
drm 69588 1 i830
intel_agp 24156 1
agpgart 35976 2 drm,intel_agp
...
so everything seems to be ok. i get the same output for i915 (i830
changed to i915, of course).
mtrr gives me
# cat /proc/mtrr
reg00: base=0x00000000 ( 0MB), size= 512MB: write-back, count=1
reg01: base=0x1ff80000 ( 511MB), size= 512KB: uncachable, count=1
reg02: base=0xd8000000 (3456MB), size= 4MB: write-combining, count=1
i have 512mb of physical ram in my machine and 512mb of swap.
After those modules are loaded, try restarting X, and look for entries in
the log file (/var/log/Xorg.0.log) like this [my comments in brackets]:
(II) LoadModule: "i810"
(II) Loading /usr/X11R6/lib/modules/drivers/i810_drv.o
(II) Module i810: vendor="X.Org Foundation"
compiled for 6.8.2, module version = 1.3.0
Module class: X.Org Video Driver
ABI class: X.Org Video Driver, version 0.7
ok, i have this...
(II) LoadModule: "i810"
(II) Loading /usr/X11R6/lib/modules/drivers/i810_drv.o
(II) Module i810: vendor="X.Org Foundation"
compiled for 6.8.2, module version = 1.5.160
Module class: X.Org Video Driver
ABI class: X.Org Video Driver, version 0.7
...
(II) I810: Driver for Intel Integrated Graphics Chipsets: i810, i810-dc100,
i810e, i815, i830M, 845G, 852GM/855GM, 865G, 915G, E7221 (i915),
915GM, 945G
and also this...
(II) I810: Driver for Intel Integrated Graphics Chipsets: i810, i810-dc100,
i810e, i815, i830M, 845G, 852GM/855GM, 865G, 915G, E7221 (i915),
915GM, 945G
(II) Primary Device is: PCI 00:02:0
(--) Chipset 845G found
...
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 8, (OK)
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 8, (OK)
drmOpenByBusid: Searching for BusID pci:0000:00:02.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 8, (OK)
drmOpenByBusid: drmOpenMinor returns 8
drmOpenByBusid: drmGetBusid reports pci:0000:00:02.0
(II) I810(0): [drm] DRM interface version 1.2
(II) I810(0): [drm] created "i915" driver at busid "pci:0000:00:02.0"
(II) I810(0): [drm] added 8192 byte SAREA at 0xdfdf6000
(II) I810(0): [drm] mapped SAREA 0xdfdf6000 to 0xb7c7a000
(II) I810(0): [drm] framebuffer handle = 0xf0020000
(II) I810(0): [drm] added 1 reserved context for kernel
but this is missing. no occurence of drm* lines at all.
If you get an error message instead, try replacing your X i810_drv.o module
with the one from this web site:
http://www.fairlite.demon.co.uk/intel.html
the same result with this driver.
Restart X, and if it still doesn't work, post the relevant portions of your
log file.
everything is above...
the only errors in the xorg log are
(II) Loading sub module "GLcore"
(II) LoadModule: "GLcore"
(II) Loading /usr/X11R6/lib/modules/extensions/libGLcore.a
Skipping "/usr/X11R6/lib/modules/extensions/libGLcore.a:m_debug_clip.o":
No symbols found
Skipping "/usr/X11R6/lib/modules/extensions/libGLcore.a:m_debug_norm.o":
No symbols found
Skipping
"/usr/X11R6/lib/modules/extensions/libGLcore.a:m_debug_xform.o": No
symbols foun
d
(II) Module GLcore: vendor="X.Org Foundation"
compiled for 6.8.2, module version = 1.0.0
...
(II) I810(0): 6392 kBytes additional video memory is required to
enable tiling mode for DRI.
(II) I810(0): 4344 kBytes additional video memory is required to enable DRI.
(II) I810(0): Disabling DRI.
...
(II) Loading /usr/X11R6/lib/modules/libfb.a
Skipping "/usr/X11R6/lib/modules/libfb.a:fbmmx.o": No symbols found
(II) Module fb: vendor="X.Org Foundation"
compiled for 6.8.2, module version = 1.0.0
ABI class: X.Org ANSI C Emulation, version 0.2
...
the relevant parts of my xorg.conf are
Section "Module"
Load "GLcore"
Load "bitmap"
Load "dbe"
Load "ddc"
Load "dri"
Load "extmod"
Load "freetype"
Load "glx"
Load "int10"
Load "record"
Load "type1"
Load "v4l"
Load "vbe"
Load "synaptics"
EndSection
...
Section "Device"
Identifier "Intel Corporation 82845G/GL[Brookdale-G]/GE
Chipset Integrated Gr
aphics Device"
Driver "i810"
BusID "PCI:0:2:0"
VideoRam 8192
EndSection
...
Section "DRI"
Mode 0666
EndSection
...
if you need more info, let me know. thank you for help.
regards,
--
Lubos
_@_"
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