https://bugzilla.kernel.org/show_bug.cgi?id=215511
Bug ID: 215511 Summary: Dual monitor with amd 5700 causes system to hang at startup. Product: Drivers Version: 2.5 Kernel Version: 5.16.1 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: pmestre@gmail.com Regression: No
Created attachment 300294 --> https://bugzilla.kernel.org/attachment.cgi?id=300294&action=edit dual monitor boot crash with amdgpu card.
Hello, system mostly crashes (sometimes in different ways) when i start with more than one monitor attached.
If i switch off one monitor then system boots correctly (i don't need to detach the displayport cable, just to switch off the monitor).
When both monitors are connected, most of the times it just crashes as the attached log, sometimes it boots but screen is flickering and with artifacts.
This happened with kernel 5.10 and 5.11, it was fixed i don't remember exactly when, and is happening again. For me it worked with kernel 5.15.8 and failed with 5.15.13. It is still failing with 5.16.1.
Kind regards and many thanks for your work in the most crucial open-source project.