Arch Linux

mozkomor05

Member

From: Czech Republic

Registered: 2022-11-27

Posts: 3

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Mic usage causes monitor to go "gray", OS remains interactive.

As strange as it sounds, it really does happen to me. At first I thought the black screen was caused by hardware acceleration, then WebRTC, but eventually I identified any usage of the microphone as the trigger. Randomly, after some time (sometimes just after a second, other times it takes over 30 minutes) my laptop monitor turns gray when the mic is active. Interestingly, my laptop is still interactive (I can operate it "blindly") and if I share the screen on Google Meet, for example, the others can see what I'm doing - only I can't.
Nothing helps to reset the screen - I tried to change the TTY, kill all processes (via SysRq REI), but I always had to reboot. Recently, via SSH while the monitor was dark, I discovered that xrandr --output eDP-1 --off; xrandr --output eDP-1 --auto also helps. I should also point out that the monitor doesn't turn off while the microphone is in use (as e.g. with DPMS), but remains "grey / glowing black".

I tried monitoring joural, dmesg and Xorg.log via SSH while the problem occurs, but all logs remain unchanged.

Info

OS: Arch Linux x86_64
Host: HP Pavilion Gaming Laptop 15-cx0xxx
Kernel: 5.15.94-1-lts
Shell: zsh 5.9
Resolution: 1920x1080
WM: dwm (custom fork)
Display server: Xorg
Sound server: PipeWire with Wireplumber
Mic: Microphone of HyperX Cloud II headset
Compositor: Picom
Theme: Catppuccin-Mocha-Standard-Green-Dark [GTK2/3]
CPU: Intel i5-8300H (8) @ 4.000GHz
GPU: Intel CoffeeLake-H GT2 [UHD Graphics 630]
GPU: NVIDIA GeForce GTX 1050 Ti Mobile

Xorg GPU configuration

Section "ServerLayout"
        Identifier "layout"
        Screen 0 "intel"
        Inactive "nvidia"
        Option "AllowNVIDIAGPUScreens"
EndSection

Section "Device"
        Identifier "nvidia"
        Driver "nvidia"
		BusID "PCI:1:0:0"
EndSection

Section "Screen"
        Identifier "nvidia"
        Device "nvidia"
EndSection

Section "Device"
        Identifier "intel"
        Driver "modesetting"
        BusID "PCI:0:2:0"
EndSection

Section "Screen"
        Identifier "intel"
        Device "intel"
EndSection

Problem happens on all kernels I've tried, which inludes: Linux, LTS and Zen

Last edited by mozkomor05 (2023-02-18 19:06:39)