[Bug 108096] [amd-staging-drm-next] SDDM screen corruption (not usable) with RX580, amdgpu, dc=1 (of course), regression - [bisected]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108096

--- Comment #21 from Andrey Grodzovsky <andrey.grodzovsky at amd.com> ---
Please load the driver in debug mode so I can see the error code value in dmesg
- 
when loading the kernel add drm.debug=0xff

Also to trace where exactly the error originated from please install trace-cmd
and beore starting X (assuming you get the failure and the dmesg error right on
start)
sudo trace-cmd start -p function_graph -l amdgpu_cs_ioctl
and get the output from /sys/kernel/debug/tracing/trace

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