<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta content="text/html;charset=UTF-8" http-equiv="Content-Type"></head><body ><div style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;"><div>Hi! I am a unsure how this message is appropriate here as most messages are patches.<br></div><div><br></div><div>I have temporary access (while helping the computer with a full disk situation), to test a computer with RS780C GPU,<br></div><div>where when resuming with default ShadowPrimary off, <span class="colour" style="color:rgb(42, 42, 42)">ring 0 stalled happens on almost each resume from suspend to ram.</span><br></div><div><span class="colour" style="color:rgb(42, 42, 42)">Seems fixed by enabling ShadowPrimary (radeon driver).</span><br></div><div><span class="colour" style="color:rgb(42, 42, 42)"><a target="_blank" href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1944991">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1944991</a></span><br></div><div>I mentions this bug on: <a target="_blank" href="https://bugzilla.kernel.org/show_bug.cgi?id=85421">https://bugzilla.kernel.org/show_bug.cgi?id=85421</a><br></div><div><br></div><div>The question is there some test I could do that would help pinpoint the problem?<br></div><div>Like a particular drm.debug value boot parameter or something similar?<br></div></div><br></body></html>