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#1 2017-01-19 10:26:12

Laenan
Member
Registered: 2016-08-30
Posts: 2

Dual monitor setup refuses to 'sleep' dpms doesn't work.

Hi everyone,
I have an issue with my dual monitor setup. With the command

xset dpms force [off/suspend/standby] 

I haven't the expected outcome. My monitors power off for a short while (1-2 seconds), then blackening with backlight on. If I try this with only one monitor enabled, everything works as expected.

Here are some of the things I tried:

  • Different Environments: XFCE, Gnome, KDE, currently working on KDE

  • Adding

    sleep 1 &&

    before xset command.

  • Tried different settings in the System Settings

  • Some tries with vbetools. This doesn't work for me or freezes my system.

  • Tried this with no positive result

  • Some more stuff, which doesn't had an effect

An intermediate solution is to hibernate the system, when not in use. But this isn't possible, if I have some simulations running or want to access via ssh (set up WOL is a pain in the ass).

Here are some details on the machine:

  • Arch Linux with KDE

  • Data Sheet for HP Z420 Workstation with Nvidia Quadro K2000

  • Dual monitor setup via DP (both monitors)

  • feel free to ask for further details

Installed drivers:

pacman -Qs nvidia

local/cuda 8.0.44-3
    NVIDIA's GPU programming toolkit
local/lib32-nvidia-libgl 375.26-2
    NVIDIA drivers libraries symlinks (32-bit)
local/lib32-nvidia-utils 375.26-2
    NVIDIA drivers utilities (32-bit)
local/libvdpau 1.1.1-2
    Nvidia VDPAU library
local/nvidia 375.26-1
    NVIDIA drivers for linux
local/nvidia-libgl 375.26-2
    NVIDIA drivers libraries symlinks
local/nvidia-utils 375.26-2
    NVIDIA drivers utilities
local/opencl-nvidia 375.26-2
    OpenCL implemention for NVIDIA

It would be very helpful, if you have some suggestions for a solution. If you have any more questions, just ask!

Greetings,
Laenan

P.S.: Hope I got this in the correct section. There are some threads concerning this issue but none of them seems to refer to my problem.

References:
"Topic: Dual Monitor: "xset dpms force off ", but backlight returns" in an Manjaro-Forum. Seems like the same issue, but there isn't a solution in this thread.

Last edited by Laenan (2017-01-19 14:10:37)

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