Re: Libwayland update causes Plasma desktop freeze on login

[Enrico Rivarola <henry_thebuilder@yahoo.it>]

I am aware that packages in 'debian backports' may 'lead to some incompatibility risks' but from 
what I have been able to understand the problem seems to be due to other packages (it seems 
'kwin') not aligned with the updated packages ( see bug 1076729 (1) and 1081941 (2) ).

At the moment I am not able to try solutions such as rebuild KWin or other system packages, 
hence my request to the maintainers if it is possible to backport/update the packages in the 
bookworm-backports in order to have all aligned and working so that we can update the system 
from backports without building or pinning any packages.

Thanks in advance for considering my request.

Enrico

(1) https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1076729
(2) https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081941


Il 23/09/24 18:21, Boyuan Yang ha scritto:
> 在 2024-09-13五的 23:11 +0200，Enrico Rivarola写道：
> > Hi,
> > after upgrading libwayland-* packages from backports Plasma desktop failing to start freezing
> > the system at login.
> >
> > Downgrading the packages to the previous version everything goes back to normal.
> >
> > These are the updated packages:
> > Upgrade: libwayland-cursor0:amd64 (1.21.0-1, 1.23.0-1~bpo12+1), libwayland-server0:amd64
> > (1.21.0-1, 1.23.0-1~bpo12+1), wayland-protocols:amd64 (1.31-1, 1.37-1~bpo12+1),
> > libwayland-egl1:amd64 (1.21.0-1, 1.23.0-1~bpo12+1), libwayland-bin:amd64 (1.21.0-1,
> > 1.23.0-1~bpo12+1), libwayland-dev:amd64 (1.21.0-1, 1.23.0-1~bpo12+1), libwayland-client0:amd64
> > (1.21.0-1, 1.23.0-1~bpo12+1)
> >
> > Searching for similar problems I found a debian bug (bug=1076729) and this article that seems to
> > reproduce the same problems I had:
> > "A Critical Bug In Libwayland Update Causes Plasma Desktop Freeze On Debian Sid/Trixie"
> > https://ostechnix.com/libwayland-update-causes-plasma-desktop-freeze-on-debian/
> >
> > At the moment I am not able to try solutions such as rebuild KWin or other system packages.
> >
> > If the problem also affects other systems, I hope the information can be useful.
>
> While personally I find backporting wayland could be a bad idea, this problem really
> need to be solved by the original Wayland package maintainers: if you have any idea,
> please consider solving it.
>
> Thanks,
> Boyuan Yang
>
>
> > this is what is in the 'system log' about wayland:
> >
> > Sep 13 21:41:11 home.local systemd[3642]: Starting plasma-kwin_wayland.service - KDE Window
> > Manager...
> > Sep 13 21:41:11 home.local systemd[3642]: Started plasma-kwin_wayland.service - KDE Window Manager.
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: No backend specified, automatically
> > choosing drm
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: wl_global_create: implemented version for
> > 'wl_shm' higher than interface version (2 > 1)
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: kwin_wayland_drm: drmSetClientCap for
> > Atomic Mode Setting failed. Using legacy mode on GPU "/dev/dri/card0"
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: OpenGL vendor string:                   Intel
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: OpenGL renderer string:
> > Mesa Intel(R) HD Graphics 3000 (SNB GT2)
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: OpenGL version string:
> > 3.3 (Core Profile) Mesa 22.3.6
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: OpenGL shading language version string: 3.30
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: Driver:                                 Intel
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: GPU class:
> > SandyBridge
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: OpenGL version:                         3.3
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: GLSL version:                           3.30
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: Mesa version:
> > 22.3.6
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: Linux kernel version:
> > 6.10.6
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: Requires strict binding:                no
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: GLSL shaders:                           yes
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: Texture NPOT support:                   yes
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: Virtual Machine:                        no
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: kwin_wayland_drm: disabling connector
> > "VGA-2-unknown" without a crtc
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: kwin_wayland_drm: disabling connector
> > "HDMI-A-2-unknown" without a crtc
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: kwin_wayland_drm: disabling connector
> > "VGA-2-unknown" without a crtc
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: kwin_wayland_drm: disabling connector
> > "HDMI-A-2-unknown" without a crtc
> > Sep 13 21:41:12 home.local kwin_wayland_wrapper[3993]: kwin_xkbcommon: XKB: inet:334:58:
> > unrecognized keysym "XF86EmojiPicker"
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE)
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) Backtrace:
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 0: /bin/Xwayland
> > (0x55b22833d000+0x178fe4) [0x55b2284b5fe4]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 1: /bin/Xwayland
> > (0x55b22833d000+0x17c9d9) [0x55b2284b99d9]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 2: /lib/x86_64-linux-gnu/libc.so.6
> > (0x7f7a79651000+0x3c050) [0x7f7a7968d050]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 3:
> > /lib/x86_64-linux-gnu/libwayland-client.so.0 (wl_proxy_get_version+0x0) [0x7f7a79e801d0]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 4: /bin/Xwayland
> > (0x55b22833d000+0x3ce7d) [0x55b228379e7d]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 5: /bin/Xwayland
> > (0x55b22833d000+0x39ff2) [0x55b228376ff2]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 6: /bin/Xwayland
> > (0x55b22833d000+0x108381) [0x55b228445381]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 7: /bin/Xwayland
> > (0x55b22833d000+0xb4144) [0x55b2283f1144]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 8: /bin/Xwayland
> > (0x55b22833d000+0xa17aa) [0x55b2283de7aa]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 9: /bin/Xwayland
> > (0x55b22833d000+0xa2822) [0x55b2283df822]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 10: /bin/Xwayland
> > (0x55b22833d000+0xada39) [0x55b2283eaa39]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 11: /lib/x86_64-linux-gnu/libc.so.6
> > (0x7f7a79651000+0x2724a) [0x7f7a7967824a]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 12: /lib/x86_64-linux-gnu/libc.so.6
> > (__libc_start_main+0x85) [0x7f7a79678305]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) 13: /bin/Xwayland
> > (0x55b22833d000+0x33fe1) [0x55b228370fe1]
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE)
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) Segmentation fault at address 0x40
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE)
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: Fatal server error:
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE) Caught signal 11 (Segmentation
> > fault). Server aborting
> > Sep 13 21:41:13 home.local kwin_wayland_wrapper[4044]: (EE)
> > Sep 13 21:41:38 home.local systemd[3642]: Stopping plasma-kwin_wayland.service - KDE Window
> > Manager...