https://bugzilla.kernel.org/show_bug.cgi?id=203339
Bug ID: 203339 Summary: AMDGPU: virtual_display disables physical outputs Product: Drivers Version: 2.5 Kernel Version: 5.0.7 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: parker.l.reed@gmail.com Regression: No
Created attachment 282351 --> https://bugzilla.kernel.org/attachment.cgi?id=282351&action=edit Kernel log
Unable to tell if this is intended or if caused by a crash.
I have a monitor connected via HDMI. When I use the virtual_display kernel parameter, only the virtual displays show up.
amdgpu.virtual_display=0000:07:00.0,2
Original patchset doesn't mention this usecase.
https://lists.freedesktop.org/archives/amd-gfx/2016-August/001058.html
Kernel log attached shows some crashes related to dce_virtual_crtc