[Bug 105433] Unreliable Modesetting on Tonga with two DVI Screens

[bugzilla-daemon at freedesktop.org]

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 at lists.freedesktop.org
          Reporter: freedesktop-bugs at 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.

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