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Im trying to configure my screen to occupy the upper half of a single monitor such that the entire desktop is still displayed. The following command successfully shows only the upper half of the screen:

xrandr --fb 1920x540 --output VGA1 (1080 vertical resolution)

I would expect the following command to then scale the screen while still occupying only the upper portion of the monitor.

xrandr --fb 1920x540 --output VGA1 --scale 1x.5

However, this ends up scaling the display and occupying the entire monitor.

EDIT: I have a stretched LCD panel where the manufacturer literally "cuts" the display such that the vertical resolution it reports is greater than what's visible. Rather than adapt my software to fit a particular resolution I thought it would be interesting to scale the entire desktop, which would also allow for ease of system management.

EDIT: I've tried several monitors (using VGA) with no change. I've also tried adding new modes with half the vertical resolution, with and without halving the refresh rate.

  • I'm not sure what you want to do, but you could look at --scale-from instead. – meuh Feb 27 '18 at 15:26
  • I tried --scale-from, but it appears equivalent to the second command listed in my question. – Douglas Cooper Feb 28 '18 at 15:41

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