[Bug 215511] New: Dual monitor with amd 5700 causes system to hang at startup.
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Fri Jan 21 09:23:22 UTC 2022
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 at kernel-bugs.osdl.org
Reporter: pmestre at 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.
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