Created attachment 141478 [details] kernel panic This is a follow-up from bug https://bugs.freedesktop.org/show_bug.cgi?id=105018. If I leave my laptop in its dock (one HDMI and one DisplayPort) it has a high chance of kernel panicking when DPMS turns the displays off. This affects my Dell Precision 7720 with a Radeon Pro WX 7100 on Archlinux, kernel 4.18.5. My boot parameters include amdgpu.dc=1 (a redundant option nowadays, I know, I forgot to remove this option). Suspend/resume work are fine, this happens only immediately after idle blanking. As far as I can tell this does not occur when using only the laptop screen but I could be wrong as I spend the majority of my time on the dock. I've attached a kernel log. For now I work around the issue by disabling dpms entirely. Thank you!
I should also note that a very similar software (desktop) setup with a Vega 64 card has no such issue with an external displayport monitor.
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/517.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.