** Changed in: mesa (Ubuntu Plucky)
Milestone: ubuntu-25.04 => None
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https://bugs.launchpad.net/bugs/2103601
Title:
25.0.1 breaks gdm on panfrost
Status in mesa package in Ubuntu:
Confirmed
Status in mesa source package in Plucky:
Confirmed
Bug description:
Summary
=======
At boot gdm shows an entirely black screen with some weird screen artifacts.
The mouse still works.
After experimenting a bit I found that logging in blindly works and only
wayland seems to be affected.
Changing the gdm config to wayland=false makes it render properly.
The problem appeared after a recent update to mesa 25.04. Downgrading
everything manually resolves the problem. Downgrading only
libgl1-mesa-dri did not help.
Other Debian users seem to be affected too, see
https://github.com/hexdump0815/imagebuilder/issues/314
Hardware
========
Device: Asus Chromebook CM14
SOC: mt8186
GPU: Mali-G52 r1 (Panfrost)
Packages
========
libegl-mesa0/plucky,now 25.0.1-2ubuntu1 arm64 [installed,automatic]
libgl1-mesa-dri/plucky,now 25.0.1-2ubuntu1 arm64 [installed,automatic]
libglx-mesa0/plucky,now 25.0.1-2ubuntu1 arm64 [installed,automatic]
mesa-libgallium/plucky,now 25.0.1-2ubuntu1 arm64 [installed,automatic]
mesa-va-drivers/plucky,now 25.0.1-2ubuntu1 arm64 [installed,automatic]
mesa-vdpau-drivers/plucky,now 25.0.1-2ubuntu1 arm64 [installed,automatic]
mesa-vulkan-drivers/plucky,now 25.0.1-2ubuntu1 arm64 [installed,automatic]
Happy to collect more info or run tests
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