F40, Wayland, Plasma 6
On resuming from hibernation, several KDE apps (Konsole, qBittorrent
and Dolphin) dump core. In each case, there is a slew of messages
preceding the dump:
May 02 09:35:00 Bree kwin_wayland[166169]: kwin_core: Could not find any suitable output
for a layer surface
May 02 09:35:00 Bree plasmashell[166433]: qt.qpa.wayland: Creating a fake screen in order
for Qt not to crash
May 02 09:35:00 Bree plasmashell[166433]: qml: The backend got an unknown wallpaper
provider type. The wallpaper will now fall back to the default. Please ch>
May 02 09:35:00 Bree kscreenlocker_greet[291406]: qt.qpa.wayland: Creating a fake screen
in order for Qt not to crash
May 02 09:35:00 Bree kwin_wayland[166169]: kwin_core: Could not find any suitable output
for a layer surface
May 02 09:35:01 Bree plasmashell[166433]: qml: The backend got an unknown wallpaper
provider type. The wallpaper will now fall back to the default. Please ch>
May 02 09:35:01 Bree kernel: [drm] scheduler comp_1.2.1 is not ready, skipping
May 02 09:35:01 Bree kernel: [drm] scheduler comp_1.2.0 is not ready, skipping
May 02 09:35:01 Bree kernel: [drm] scheduler comp_1.0.1 is not ready, skipping
May 02 09:35:01 Bree kernel: [drm] scheduler comp_1.1.1 is not ready, skipping
May 02 09:35:01 Bree kernel: [drm] scheduler comp_1.2.1 is not ready, skipping
May 02 09:35:01 Bree kernel: [drm] scheduler comp_1.2.0 is not ready, skipping
May 02 09:35:01 Bree kernel: [drm] scheduler comp_1.0.1 is not ready, skipping
May 02 09:35:01 Bree kernel: [drm] scheduler comp_1.1.1 is not ready, skipping
May 02 09:35:01 Bree kernel: [drm] scheduler comp_1.2.1 is not ready, skipping
etc. etc.
A Google search seems to associate the [drm] issue with an AMD GPU bug
(I have an RTX580) but as it only happens with these apps I'm
sceptical. It never used to happen with F39 (using X11).
I posted a less detailed report on the Fedora KDE list a few days ago,
but didn't get any useful feedback.
poc
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