ubuntu scaling screens separately

 

xrandr     --output DP-1 --mode 3840x2160 --pos 0x0 --scale 1x1 --auto \ 
--output HDMI-1 --mode 1920x1200 --pos 3840x0 --auto --panning 3840x2400+3840+0 --scale 2.0x2.0 \
--fb 7680x2400

 

# setting UI scaling:

gsettings set org.gnome.desktop.interface text-scaling-factor 1.7

 

https://devtalk.nvidia.com/default/topic/891207/-355-11-358-09-viewportin-on-2nd-monitor-results-in-garbled-display-for-values-over-3211×1800

https://wiki.archlinux.org/index.php/HiDPI

https://unix.stackexchange.com/questions/377901/xrandr-scale-2×2-for-multi-display-4k-hidpi-and-full-hd-mix-blurred-output

https://askubuntu.com/questions/968443/nvidia-drivers-unable-to-check-force-full-composition-pipeline

 

https://devtalk.nvidia.com/default/topic/1027345/linux/why-cannot-i-enable-drm-kernel-mode-setting-/