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alex-courtis / xlayoutdisplay

Detects and arranges linux display outputs, using XRandR for detection and xrandr for arrangement.
Apache License 2.0
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How to use this with 1.25x1.25 scaling? #4

Closed ost-ing closed 3 years ago

ost-ing commented 5 years ago

Hi, I'm attempting to have 2 monitors with a custom scaling factor:

eDP1, 1440p screen at 1.25x1.25 scaling factor HDMI1, 1080p screen at 1x1 scaling factor

With no overlap.

Basically I am using the HDPI guide from the arch wiki for my laptop screen, but I want a standard 1080p external monitor to use also. https://wiki.archlinux.org/index.php/HiDPI

Is this possible?

FFY00 commented 4 years ago

I am also interested in using this with scaling.

alextwothousand commented 4 years ago

Likewise.

alex-courtis commented 4 years ago

Two workarounds:

  1. Copypasta and modify the xrandr command that xlayoutdisplay uses
  2. Use something like arandr to build an xrandr command line

Both are poor options. We can do better:

We cannot have multiple dpis, however we can have the scale relative to the primary monitor. I'm imagining adding a list of scales similar to order e.g. -s 1 -s 0.8 for the above example. That would come out to something like:

xrandr
  --dpi 120 \
  --output eDP1 --scale 1 --primary ... \
  --output HDMI1 --scale 0.8 ...

Very happy to accept PRs and assist in getting a branch working.