https://bugs.kde.org/show_bug.cgi?id=506504
Bug ID: 506504
Summary: XWayland unstable when playing steam games in a
Wayland plasma session
Classification: Frameworks and Libraries
Product: plasma-wayland-protocols
Version First unspecified
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Target Milestone: ---
Created attachment 182878
--> https://bugs.kde.org/attachment.cgi?id=182878&action=edit
xwayland logs
SUMMARY
STEPS TO REPRODUCE
1. Connect PC running RTX 3070 to LG B4 4K OLED TV with HDMI deep color enabled
2. Launch Steam big picture mode and launch Dying Light with xbox controller
via bluetooth
3. Play the game for a few minutes, press the guide button or shift+tab to
bring up the steam overlay
OBSERVED RESULT
Kwin notification center shows "Xwayland has crashed" with all my applications
running X (steam, discord, etc.) crashing too. It does not boot me back to the
log in screen, and I can re-open my apps just fine.
EXPECTED RESULT
For this not to happen.
SOFTWARE/OS VERSIONS
Fastfetch output:
OS: Arch Linux x86_64
Kernel: Linux 6.15.4-arch2-1
Display (LG TV SSCR2): 2560x1440 @ 120 Hz in 72" [External, HDR]
DE: KDE Plasma 6.4.1
WM: KWin (Wayland)
CPU: AMD Ryzen 5 5600X (12) @ 4.65 GHz
GPU: NVIDIA GeForce RTX 3070 [Discrete]
Memory: 4.98 GiB / 62.72 GiB (8%)
Swap: 760.00 KiB / 16.00 GiB (0%)
ADDITIONAL INFORMATION
Note: These crashes do NOT exist on X11 whatsoever, especially with HDMI deep
color enabled and my display settings in plasma at 1440p 120hz.
I connected my 3070 build to my MSI gaming monitor (at 1080p 144hz) through
both HDMI and Displayport. Xwayland did not crash at all in the 30 minutes I
played Dying Light, and bringing up the Steam big picture overlay every couple
of minutes.
On my LG OLED B4 4K TV, I tried disabling HDMI deep color on the HDMI port my
3070 card was plugged into, and brought the resolution down to 1080p, no HDR,
60fps. I would get no signal if I went above 1080p and above 60hz with deep
color disabled anyway.
Xwayaland DID crash with the same errors, but only once in the additional 30
minutes I tested while bringing up the big picture overlay every couple
minutes.
I flipped HDMI deep color back on and went back to 1440p, HDR enabled, 120fps,
and within a couple minutes of playing Dying Light, xwayland crashed.
There is definitely a nasty bug between the wayland compositor and nvidia when
displaying greater than 1080p, and this case should be marked as such. Whether
it's an issue with Wayland or Nvidia is unknown. I'm going to say a Wayland
issue, since X11 has no crashes whatsoever while I'm playing games at 1440p
120hz.
I reported this issue over on gitlab
(https://gitlab.freedesktop.org/xorg/xserver/-/issues?show=eyJpaWQiOiIxODI5IiwiZnVsbF9wYXRoIjoieG9yZy94c2VydmVyIiwiaWQiOjEzNDc4MX0%3D)
and the first result there had me post some wayland logs by changing the binary
and writing a script. I will post those logs here as well.
My journalctl logs also show this:
journalctl --since "10 minutes ago" | grep -i xwayland
Jun 26 14:36:54 nefarious kwin_wayland_wrapper[2459]: XWAYLAND: error
marshalling arguments for lock_pointer (signature noo?ou): null value passed
for arg 2
Jun 26 14:36:54 nefarious kwin_wayland_wrapper[2459]: XWAYLAND: Error
marshalling request: Invalid argument
Jun 26 14:36:54 nefarious kwin_wayland_wrapper[2459]: (EE) failed to write to
Xwayland fd: Invalid argument
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