💻 Kubuntu

• Right Click Up Arrow in panel

  • Uncheck: General > Extra Items > Updates

• Muon Package manager > Settings > Software Sources > Updates

• sudo aptitude update && sudo aptitude upgrade

• sudo do-release-upgrade -d

• System Settings > Appearance > Fonts > Enable Force font DPI (96 DPI)

• usermod -a -G video user

• cvt 1600 900 60

• vim ~/.scripts/kubuntu_virtual_display.sh

  !/bin/bash
  randr --newmode "1600x900_60.00"  118.25  1600 1696 1856 2112  900 903 908 934 -hsync +vsync
  randr --addmode Virtual-1 1600x900_60.00
  randr --output Virtual-1 1600x900_60.00
  

• sudo chmod +x ~/.scripts/kubuntu_virtual_display.sh

• Add new script to Autostart: Windows key > type auto > autostart

• Might have to use the GUI to set the display through: Settings > Display and Monitor > Resolution drop down menu

• Reboot

03-08-2022

• sudov /etc/profile.d/kwin.sh

  #!/bin/sh
  export __GL_YIELD=“USLEEP”
  

• If that doesn’t work, clear that line, and add..

  #!/bin/sh
  export KWIN_TRIPLE_BUFFER=1
  

• If the above does nothing then disable KDE compositor and use Picom

  • This is the route that worked for my Quadro K620 & Kubuntu 21.10 (reverted back to KDE/Plasma compositor: 220309)

    • System Settings > Display and Monitor > Compositor > Toggle: Enable compositor on startup

    • apti picom

      Link to Picom project below

    cp /usr/share/doc/picom/examples/picom.sample.conf ~/.config/picom.conf
    

    • create script:

      #!/bin/sh
      picom -b
      

  • Add Picom script to startup

    • System Settings > Startup and Shutdown > Autostart > Add > Add Login Script

  • Clear tearing for certain applications:

    • System Settings > Display and Monitor > Compositor > Toggle: Allow applications to block compositing

• NVIDIA Developer Forums: Screen Tearing - #2 by manorba

• GitHub - yshui/picom: A lightweight compositor for X11