On 2024-09-06 21:46, Leo Li wrote: > > Second, can you try adding "amdgpu.dcdebugmask=0x40" to your kernel cmdline at > boot, and see if you can still repro the hang? > > This setting disables hw planes. If it resolves the hang, then it's quite > interesting, because it suggests that gnome may be using direct-scanout via hw > planes. We may need to align our gnome configuration in that case, since I don't > see any additional hw planes being used on my setup. GNOME's mutter doesn't make use of overlay planes yet. (There's a WIP MR though: https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2660) -- Earthling Michel Dänzer \ GNOME / Xwayland / Mesa developer https://redhat.com \ Libre software enthusiast
