apport information
** Package changed: wayland (Ubuntu) => linux (Ubuntu)
** Tags added: apport-collected wayland-session
** Description changed:
After upgrade from ubuntu 21.04 to ubuntu 21.10 I am seeing black screen
in wayland session and screen corruption in Xorg session
issue can be reproduced when notebook is returning from sleep - black screen
with white flashes.
was able to press Ctrl-Alt-F2 + Ctrl+Alt-Del - it restarted successfully,
however no errors seen in kernel logs - besides below:
ERROR: apport (pid 16076) Sat Oct 16 17:46:05 2021: host pid 3575
resolved by removing iommu=soft option which was preserved from workaround of
bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1921995
now kernel boots fine and wayland session and amdgpu works fine
** Changed in: xorg (Ubuntu)
Status: New => Invalid
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workaround is to use amdgpu.dc=0 boot kernel option
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https://bugs.launchpad.net/bugs/1947453
Title:
wayland black screen with white flashes, display corruption, kernel
5.13
To
Issue seems related to amggpu changes, and similar to this fedora bug -
https://bugzilla.redhat.com/show_bug.cgi?id=1984686.
Workaround - running old 5.11 kernel in ubuntu 21.10
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