https://bugs.freedesktop.org/show_bug.cgi?id=105433
Bug ID: 105433 Summary: Unreliable Modesetting on Tonga with two DVI Screens Product: DRI Version: DRI git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: freedesktop-bugs@digital-trauma.de
Two devices connected via DVI, one not coming up (powersave, no signal). On retry , they may swap their working state, or both go to energy save, or rarely, both work. This happens regardless of resolutions set on the screens in question.
Screens: 2 x Benq G2222HDL Connected via DVI (both straight to card)
Card: ASUS Strix R9285 DC2OC 2GD5
Kernel: amd-staging-drm-next 6e62bc7a123b "drm/amdgpu:Always save uvd vcpu_bo in VM Mode"
Bug report as discussed in bug 100919. Possibly related to bug 91202.