AnsweredAssumed Answered

[Linux / AMDGPU] monitor power cycling disables monitor (and borks screen layout).

Question asked by xaxazak on Oct 30, 2016

Whenever I turn one of my monitors off it is removed from my screen layout.

When I turn it back on it is disabled on the display configuration screen.

Disabling DPMS has no effect.


xrandr says:

Initially: DisplayPort-2 connected 1200x1920+0+0 left

Powered off: DisplayPort-2 disconnected

Powered back on: DisplayPort-2 connected



Is there something I can do to fix this?

I would like to keep my display configuration locked and have my system totally ignore monitor power status.


Is this due to KMS. Can I disable KMS in AMDGPU?




OS: Linux Mint 18 XFCE 64-bit.

Kernel: 4.8 (4.8.0-040800-generic).

GFX: RX 470.

Monitors via DisplayPort (0 and 2).


> inxi -Gx:

Graphics:  Card: Advanced Micro Devices [AMD/ATI] Device 67df bus-ID: 01:00.0

           Display Server: X.Org 1.18.4 drivers: ati,amdgpu (unloaded: fbdev,vesa,radeon)

           Resolution: 2560x1440@29.94hz, 1920x1200@59.95hz

           GLX Renderer: AMD Radeon RX 470 Graphics GLX Version: 4.5.13453 - CPC Direct Rendering: Yes