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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [amd-staging-drm-next] SDDM screen corruption (not usable) with RX580, amdgpu, dc=1 (of course), regression - [bisected]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108096#c21">Comment # 21</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [amd-staging-drm-next] SDDM screen corruption (not usable) with RX580, amdgpu, dc=1 (of course), regression - [bisected]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108096">bug 108096</a>
from <span class="vcard"><a class="email" href="mailto:andrey.grodzovsky@amd.com" title="Andrey Grodzovsky <andrey.grodzovsky@amd.com>"> <span class="fn">Andrey Grodzovsky</span></a>
</span></b>
<pre>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</pre>
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