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I recently upgraded from a GTX 750 to an RTX 2070 super, and have noticed regular stutters under arch. There is a small stutter approximately every 0.5 seconds. It is noticeable when playing games, scrolling, and even just moving the mouse. It starts as soon as I boot and does not go away.
I can verify the issue by going to https://www.vsynctester.com/, where I see very regular spikes. Screenshot: https://cdn.discordapp.com/attachments/ … nknown.png
My system:
CPU: Ryzen 2700x
GPU: Gigabyte RTX 2070 Super Windforce OC
Mobo: ASRock - X470 Master SLI/AC
PSU: Corsair RMx 550
WM: i3
Displays: Acer K222HQL 1920x1080@60, LG W2452 1920x1200@59.95, HP 24fw 1920x1080@60
I do not notice the issue when booted into windows 10.
What I have tried:
Updating arch
Setting ForceFullCompositionPipeline in nvidia-settings and/or in /etc/X11/xorg.conf
Playing around with monitor refresh rates in nvidia-settings
Playing around with the opengl settings in nvidia-settings (sync to vblank, etc)
Using picom
Enabling triple buffering in /etc/X11/xorg.conf
Logs:
/var/log/Xorg.0.log -- well that would be the issue. My xorg log is being flooded with messages that look like the following:
[ 2235.604] (--) NVIDIA(GPU-0): Acer K222HQL (DFP-4): connected
[ 2235.604] (--) NVIDIA(GPU-0): Acer K222HQL (DFP-4): Internal TMDS
[ 2235.605] (--) NVIDIA(GPU-0): Acer K222HQL (DFP-4): 165.0 MHz maximum pixel clock
[ 2235.605] (--) NVIDIA(GPU-0): As soon as I unplug the offending monitor the issue disappears. Well thanks for being my rubber duck, I will post this anyways as a reference so nobody else has to go through this themselves.
Last edited by BluCode (2020-02-09 21:04:05)
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