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#1 2021-01-30 14:14:56

modnar_resu
Member
Registered: 2021-01-30
Posts: 1

Laptop monitor refuses to run high refresh rate when in battery mode

tl;dr   My laptop's monitor runs with 60hz when not plugged in. When plugged in, I get 300hz. Tinkering with xrandr or nvidia-settings doesn't help. It works with other distros. What settings/configs should I check?

Please note: My Laptop is a "Desktop Replacement", running a Desktop-CPU (no integrated graphics) and a Desktop-GPU (Nvidia RTX 2070). Therefore I didn't post in the laptop section.

What I tried:

  • Setting the refresh rate with xrandr (output below). xrandr tells me, my display runs with 300hz but it obviously does not.

  • Setting the refresh rate with nvidia-settings. Again, nvidia-settings tells me, it runs with 300hz but it obviously does not.

  • reconfiguring Xorg. I tried using a skeleton config file and the config files from an other distro, that does not have the mentioned problem.

  • downgrading/upgrading the nvidia drivers.

  • disabled all power saving mechanisms (known to me): tlp, auto-cpufreq

  • checked dmseg for conspicous output (not really sure what to look for here)

I am running i3 with no composit manager. When in login with the power cables attached, the display runs with 300hz, even when I pull out the cables mid-session. When I login with no cables attached, it will run with 60hz an keeps at that refresh rate, when the cables are attached again until I logout/login again.

xrandr output

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-2 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 380mm x 220mm
   1920x1080     60.04 + 300.18* 
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)
DP-6 disconnected (normal left inverted right x axis y axis)

xorg.conf (relevant parts)

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 440.82

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "AU Optronics Corporation"
    HorizSync       334.0 - 334.0
    VertRefresh     48.0 - 300.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce RTX 2070"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-3"
    Option         "metamodes" "1920x1080_300 +0+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

xorg.conf.d/10-nvidia.conf

Section "OutputClass"
    Identifier "nvidia"
    MatchDriver "nvidia-drm"
    Driver "nvidia"
    Option "AllowEmptyInitialConfiguration"
    ModulePath "/usr/lib/x86_64-linux-gnu/nvidia/xorg"
EndSection

.nvidia-settings-rc

# Configuration file for nvidia-settings - the NVIDIA X Server Settings utility
# Generated on Sun Jan 24 23:35:24 2021
#

# ConfigProperties:

RcFileLocale = C
DisplayStatusBar = Yes
SliderTextEntries = Yes
IncludeDisplayNameInConfigFile = No
ShowQuitDialog = Yes
UpdateRulesOnProfileNameChange = Yes
Timer = Memory_Used_(GPU_0),Yes,3000
Timer = Thermal_Monitor_(GPU_0),Yes,1000
Timer = PowerMizer_Monitor_(GPU_0),Yes,1000

# Attributes:

0/SyncToVBlank=1
0/LogAniso=0
0/FSAA=0
0/TextureClamping=1
0/FXAA=0
0/AllowFlipping=1
0/FSAAAppControlled=1
0/LogAnisoAppControlled=1
0/OpenGLImageSettings=0
0/FSAAAppEnhanced=0
0/AllowGSYNC=1
0/AllowVRR=1
0/ShowGSYNCVisualIndicator=1
0/ShowVRRVisualIndicator=1
0/ShowGraphicsVisualIndicator=1
[DPY:DP-0]/Dithering=0
[DPY:DP-0]/DitheringMode=0
[DPY:DP-0]/DitheringDepth=0
[DPY:DP-0]/ColorSpace=0
[DPY:DP-0]/ColorRange=0
[DPY:DP-0]/SynchronousPaletteUpdates=0
[DPY:DP-1]/Dithering=0
[DPY:DP-1]/DitheringMode=0
[DPY:DP-1]/DitheringDepth=0
[DPY:DP-1]/ColorSpace=0
[DPY:DP-1]/ColorRange=0
[DPY:DP-1]/SynchronousPaletteUpdates=0
[DPY:HDMI-0]/Dithering=0
[DPY:HDMI-0]/DitheringMode=0
[DPY:HDMI-0]/DitheringDepth=0
[DPY:HDMI-0]/ColorSpace=0
[DPY:HDMI-0]/ColorRange=0
[DPY:HDMI-0]/SynchronousPaletteUpdates=0
[DPY:DP-2]/RedBrightness=0.000000
[DPY:DP-2]/GreenBrightness=0.000000
[DPY:DP-2]/BlueBrightness=0.000000
[DPY:DP-2]/RedContrast=0.000000
[DPY:DP-2]/GreenContrast=0.000000
[DPY:DP-2]/BlueContrast=0.000000
[DPY:DP-2]/RedGamma=1.000000
[DPY:DP-2]/GreenGamma=1.000000
[DPY:DP-2]/BlueGamma=1.000000
[DPY:DP-2]/Dithering=0
[DPY:DP-2]/DitheringMode=0
[DPY:DP-2]/DitheringDepth=0
[DPY:DP-2]/DigitalVibrance=0
[DPY:DP-2]/ColorSpace=0
[DPY:DP-2]/ColorRange=0
[DPY:DP-2]/SynchronousPaletteUpdates=0
[DPY:DP-3]/Dithering=0
[DPY:DP-3]/DitheringMode=0
[DPY:DP-3]/DitheringDepth=0
[DPY:DP-3]/ColorSpace=0
[DPY:DP-3]/ColorRange=0
[DPY:DP-3]/SynchronousPaletteUpdates=0
[DPY:DP-4]/Dithering=0
[DPY:DP-4]/DitheringMode=0
[DPY:DP-4]/DitheringDepth=0
[DPY:DP-4]/ColorSpace=0
[DPY:DP-4]/ColorRange=0
[DPY:DP-4]/SynchronousPaletteUpdates=0
[DPY:DP-5]/Dithering=0
[DPY:DP-5]/DitheringMode=0
[DPY:DP-5]/DitheringDepth=0
[DPY:DP-5]/ColorSpace=0
[DPY:DP-5]/ColorRange=0
[DPY:DP-5]/SynchronousPaletteUpdates=0
[DPY:DP-6]/Dithering=0
[DPY:DP-6]/DitheringMode=0
[DPY:DP-6]/DitheringDepth=0
[DPY:DP-6]/ColorSpace=0
[DPY:DP-6]/ColorRange=0
[DPY:DP-6]/SynchronousPaletteUpdates=0

Please help. I am at my wit's end. What could be causing the problem?

Please let me know if you need additional details.

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#2 2021-01-30 14:20:52

ugjka
Member
From: Latvia
Registered: 2014-04-01
Posts: 1,957
Website

Re: Laptop monitor refuses to run high refresh rate when in battery mode

If you say that it works with other distros, you should figure out what versions of the kernel and xorg they use.
Also check if you have the same issue with the LTS kernel on Arch

Last edited by ugjka (2021-01-30 14:21:26)

https://ugjka.net

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