https://bugs.kde.org/show_bug.cgi?id=449556
Bug ID: 449556
Summary: kwin_wayland floods system-log with
"drmModeAddFB2WithModifiers … invalid argument" errors
Product: kwin
Version: 5.23.90
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: platform-drm
Assignee: kwin-bugs-n...@kde.org
Reporter: openmail+...@siezi.com
Target Milestone: ---
Created attachment 146223
--> https://bugs.kde.org/attachment.cgi?id=146223&action=edit
drm_info output
SUMMARY
kwin_wayland emits:
kwin_wayland_drm: drmModeAddFB2WithModifiers on GPU "/dev/dri/card1" failed
for a buffer with format XR24 and modifier 0 Invalid argument
into the system-log when a video goes into fullscreen. This seems to happens
with the frames/second of the video (e.g. a 60fps video emits 60 messages per
second).
The system is equipped with a dedicated AMDGPU and Intel iGPU. AMD is the main
card with three monitors connected: a) one "good" HiDPI 10-bit "main" display
and b) two "cheap" LowDPI 8-bit "side" displays. The iGPU is only used for
certain apps to utilize the integrated media encoder/decoder. For example VLC
is started with `DRI_PRIME=1 /usr/bin/vlc`.
STEPS TO REPRODUCE
1. Launch VLC with `DRI_PRIME=1 /usr/bin/vlc`
2. Start playing a video
3. Double click the video to trigger fullscreen
OBSERVED RESULT
If a video goes into fullscreen on one of the two "side" displays the error is
emitted. The issues does *not* occur going fullscreen on the "main" panel.
EXPECTED RESULT
The system-log shouldn't be flooded with messages.
SOFTWARE/OS VERSIONS
Operating System: EndeavourOS
KDE Plasma Version: 5.24.80
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.2
Kernel Version: 5.16.4-242-tkg-cacule (64-bit)
Graphics Platform: Wayland
Processors: 12 × 11th Gen Intel® Core™ i5-11400 @ 2.60GHz
Memory: 31,2 GiB of RAM
Graphics Processor: AMD Radeon RX 5500 XT
ADDITIONAL INFORMATION
This is a follow-up to: https://bugs.kde.org/show_bug.cgi?id=448818
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