Comment # 11
on bug 104611
from Kevin Hamacher
I'm also affected by this. Setup: GPUs: RX 580 (used), R9 Fury Screens: 3xU2415, connected via DP. 2 of them connected via MST, 1 HDMI to disabled screen, 1 HDMI to Oculus Rift VR Linux x7 5.0.7-arch1-1-ARCH #1 SMP PREEMPT Mon Apr 8 10:37:08 UTC 2019 x86_64 GNU/Linux Window manager: i3 4.16.1 Crashes when disabling + enabling the secondary screen on MST. Under some conditions the screen is not detected properly (instead of crashing the system) and powercycling the primary MST screen will crash the system. (Primary MST screen: The one plugged into the GPU, secondary: plugged into the primary screen) dmesg: https://bugs.freedesktop.org/attachment.cgi?id=144079&action=""> (with dc_log=1 but it seems like it was removed?) [ 27.292118] amdgpu: unknown parameter 'dc_log' ignored @51.6 I've disabled the secondary MST screen, the crash a couple of seconds later is when turning it back on.
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