#1115707 kwin_wayland_drm: Failed to create framebuffer: Invalid argument (qemu)

Package:
kwin-wayland
Source:
kwin-wayland
Description:
KDE window manager, wayland version, PREVIEW release
Submitter:
Roland Clobus
Date:
2025-09-19 08:41:02 UTC
Severity:
normal
#1115707#5
Date:
2025-09-19 08:39:17 UTC
From:
To:
Dear Maintainer,

When running a freshly installed KDE image (Forky) in QEMU with the 'VGA' display driver, the journalctl shows many repeated entries with the content 'kwin_wayland_wrapper[997]: kwin_wayland_drm: Failed to create framebuffer: Invalid argument'.
Whenever the mouse is moved, more entries are generated.

You can see the effect and log [2] in an openQA test [1]

To reproduce:
* Use qemu with the 'VGA' display driver
  * Install KDE with a daily netinst image [3]
  * or Use a weekly KDE live image [4]
* Look in konsole with 'journalctl -ef'
* Move the mouse around

With kind regards,
Roland Clobus

PS: As a side-effect, this might cause the KWalletManager to start with a tiny size

[1] https://openqa.debian.net/tests/443288#
[2] https://openqa.debian.net/tests/443288/logfile?filename=kwallet-journal.txt
[3] https://cdimage.debian.org/images/daily-builds/sid_d-i/current/amd64/iso-cd/
[4] https://get.debian.org/images/weekly-live-builds/amd64/iso-hybrid/