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MarkoShiva
MarkoShiva
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after adding mode you should run xrandr with both displays as parameters.

SOSo after this xrandr --addmode HDMI-1 2880x1575_35.00 you should run xrandr --output eDP1 --mode 1920x1080 --output HDMI-1 --mode 2880x1575_35.00 --right-of eDP1

in this command I assume that your primary laptop display is eDP1 you can get them by running xrandr without parameters and that 1920x1080 is resolutio you want on laptop on other side for a 43" display you use new mode don't forget the last part of that --right-of eDP1 which instructs to place a display right of the eDP1.

after adding mode you should run xrandr with both displays as parameters.

SO after this xrandr --addmode HDMI-1 2880x1575_35.00 you should run xrandr --output eDP1 --mode 1920x1080 --output HDMI-1 --mode 2880x1575_35.00 --right-of eDP1

in this command I assume that your primary laptop display is eDP1 you can get them by running xrandr without parameters and that 1920x1080 is resolutio you want on laptop on other side for a 43" display you use new mode don't forget the last part of that --right-of eDP1 which instructs to place a display right of the eDP1.

after adding mode you should run xrandr with both displays as parameters.

So after this xrandr --addmode HDMI-1 2880x1575_35.00 you should run xrandr --output eDP1 --mode 1920x1080 --output HDMI-1 --mode 2880x1575_35.00 --right-of eDP1

in this command I assume that your primary laptop display is eDP1 you can get them by running xrandr without parameters and that 1920x1080 is resolutio you want on laptop on other side for a 43" display you use new mode don't forget the last part of that --right-of eDP1 which instructs to place a display right of the eDP1.

Source Link
MarkoShiva
MarkoShiva
  • 302
  • 1
  • 9

after adding mode you should run xrandr with both displays as parameters.

SO after this xrandr --addmode HDMI-1 2880x1575_35.00 you should run xrandr --output eDP1 --mode 1920x1080 --output HDMI-1 --mode 2880x1575_35.00 --right-of eDP1

in this command I assume that your primary laptop display is eDP1 you can get them by running xrandr without parameters and that 1920x1080 is resolutio you want on laptop on other side for a 43" display you use new mode don't forget the last part of that --right-of eDP1 which instructs to place a display right of the eDP1.