I thought I'd better give another update given it has been a while and I've not returned with the information requested. I've not found the switch point to provide the bisect output asked for, but I can add some additional info that may be of help.
Any 5.8 series kernel I have tried from rc1 through rc7 and the 5.8.0-53.60 package from the install prior to upgrade is pretty stable - although not completely as it will crash in the same manner after a few days use sometimes. Any 5.11 series kernel from the rc2 onwards is decidedly unstable and can usually crash within a few minutes of booting, but sometimes manages a day or two. A manual suspend using the menu generally causes no issues, but leaving the computer to automatically suspend frequently causes problems, frustratingly not always. I have switched to Wayland from X.org in order to speed up the process of tracking down the issue because it is orders of magnitude less stable. I was running X.org when I logged the bug, but even the more recent kernels would be fine for a few days around half the time, then cause problems over a few boots and settle again. Switching to Wayland has meant that on a problematic kernel I will either see the issue on boot or within a day or two at the most. The details above in terms of time scales are based on Wayland not X.org. I will now fill in the gap in those kernel versions and look at the 5.9 and 5.10 series which I seem to have neglected! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1928600 Title: [amdgpu] Gnome locks up with artifacts on screen and [drm:amdgpu_dm_commit_planes [amdgpu]] *ERROR* Waiting for fences timed out! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1928600/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
