https://bugs.kde.org/show_bug.cgi?id=475490
Bug ID: 475490
Summary: [NVIDIA] Immediate segfault in kwin_wayland upon
initiation of Wayland session by SDDM; followed by
prompt return to SDDM greeter
Classification: Plasma
Product: kwin
Version: 5.27.8
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: gmar...@martin-fam.net
Target Milestone: ---
Created attachment 162237
--> https://bugs.kde.org/attachment.cgi?id=162237&action=edit
Complete boot journal for Wayland attempt and X11 login
SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug
symbols.
See
https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***
STEPS TO REPRODUCE
1. Install Archlinux per https://wiki.archlinux.org/title/Installation_guide
2. Install SDDM per https://wiki.archlinux.org/title/SDDM
3. Install Plasma per https://wiki.archlinux.org/title/KDE#Plasma
4. Install Wayland per https://wiki.archlinux.org/title/Wayland
5. Install additional prerequisites per
https://community.kde.org/Plasma/Wayland/Nvidia
6. Boot system to SDDM greeter
7. Select "Plasma (Wayland)," enter credentials, then select "login"
OBSERVED RESULT
The greeter disappears, and the screen goes blank except for an underscore in
the first column of the first row. After a short period, the underscore is
replaced by a cursor in the middle of the screen (which does respond to mouse
movement), followed very shortly by the reappearance of the greeter.
Oct 11 15:22:59 TehachapiMtn dbus-daemon[780]: [session uid=1000 pid=780]
Activa
ting service name='org.kde.KSplash' requested by ':1.7' (uid=1000 pid=1084
comm=
"/usr/bin/startplasma-wayland")
Oct 11 15:22:59 TehachapiMtn systemd[669]: Created slice User Background Tasks
S
lice.
Oct 11 15:22:59 TehachapiMtn systemd[669]: Reached target Session services
which
should run early before the graphical session is brought up.
Oct 11 15:22:59 TehachapiMtn systemd[669]: Starting KDE Window Manager...
Oct 11 15:22:59 TehachapiMtn systemd[669]: Starting Baloo File Indexer
Daemon...
Oct 11 15:22:59 TehachapiMtn systemd[669]: Started KDE Window Manager.
Oct 11 15:22:59 TehachapiMtn systemd[669]: Starting KDE Config Module
Initialization...
Oct 11 15:22:59 TehachapiMtn systemd[669]: Starting Splash screen shown during
boot...
Oct 11 15:22:59 TehachapiMtn systemd[669]: Started Baloo File Indexer Daemon.
Oct 11 15:22:59 TehachapiMtn dbus-daemon[780]: [session uid=1000 pid=780]
Activating via systemd: service name='org.freedesktop.portal.Desktop'
unit='xdg-desktop-portal.service' requested by ':1.11' (uid=1000 pid=1133
comm="/usr/bin/kcminit_startup")
Oct 11 15:22:59 TehachapiMtn systemd[669]: Starting Portal service...
Oct 11 15:23:00 TehachapiMtn kwin_wayland[1128]: No backend specified,
automatically choosing drm
Oct 11 15:23:00 TehachapiMtn kernel: kwin_wayland[1128]: segfault at 0 ip
000064d066a1550b sp 0000716de9708fe0 error 4 in
libnvidia-allocator.so.535.113.01[64d066a00000+1f000] likely on CPU 3 (core 1,
socket 0)
Oct 11 15:23:00 TehachapiMtn kernel: Code: 44 24 08 ff 95 e0 00 00 00 48 83 c4
10 48 89 df 5b 5d 41 5c e9 26 d5 fe ff 66 0f 1f 44 00 00 53 48 8b 87 38 01 00
00 48 89 fb <48> 8b 00 48 85 c0 74 02 ff d0 48 8b bb c8 00 00 00 48 85 ff 74 05
Oct 11 15:23:00 TehachapiMtn systemd[1]: Created slice Slice
/system/systemd-coredump.
Oct 11 15:23:00 TehachapiMtn dbus-daemon[780]: [session uid=1000 pid=780]
Activating via systemd: service name='org.freedesktop.portal.Documents'
unit='xdg-document-portal.service' requested by ':1.14' (uid=1000 pid=1137
comm="/usr/lib/xdg-desktop-portal")
Oct 11 15:23:00 TehachapiMtn systemd[1]: Started Process Core Dump (PID
1145/UID 0).
Oct 11 15:23:00 TehachapiMtn systemd[669]: Starting flatpak document portal
service...
Oct 11 15:23:00 TehachapiMtn dbus-daemon[780]: [session uid=1000 pid=780]
Activating via systemd: service
name='org.freedesktop.impl.portal.PermissionStore'
unit='xdg-permission-store.service' requested by ':1.15' (uid=1000 pid=1150
comm="/usr/lib/xdg-document-portal")
Oct 11 15:23:00 TehachapiMtn systemd[669]: Starting sandboxed app permission
store...
Oct 11 15:23:00 TehachapiMtn dbus-daemon[780]: [session uid=1000 pid=780]
Successfully activated service 'org.freedesktop.impl.portal.PermissionStore'
Oct 11 15:23:00 TehachapiMtn systemd[669]: Started sandboxed app permission
storEXPECTED RESULT
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: Archlinux (updated today)/ 6.5.7-hardened1-1-hardened
(64-bit)
(available in About System)
KDE Plasma Version: 5.27.8-4
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.11
NVIDIA Proprietary Driver Version: 535.113.01
ADDITIONAL INFORMATION
This computer ran KDE Plasma/Wayland for about a year without significant
issues before replacing the previous AMD GPU with the NVIDIA RTX4060 installed
6 weeks ago.
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