Extend a HIDPI screen to a normal DPI external display
Project description
Extend a HIDPI screen to a normal DPI external display. This command line tool implements various solutions described in the HIDPI Arch Linux wiki page.
Installation
pip install -e git+https://github.com/ashwinvis/xrandr-extend.git#egg=xrandr_extend --user
or alternatively
git clone https://github.com/ashwinvis/xrandr-extend.git
cd xrandr-extend
pip install -e . --user
Configuration
python -m xrandr_extend.config
This creates a file ~/.config/xrandr-extend.cfg
which looks like this:
[provider:modesetting]
primary = eDP-1
hdmi = HDMI-1
vga = DP-1
[provider:intel]
primary = eDP1
hdmi = HDMI1
vga = DP1
[resolutions]
primary = (3200, 1800)
hdmi = (1920, 1080)
vga = (1920, 1200)
The first few sections have the name in the format [provider:display_driver]
.
Run xrandr --listproviders
to find what your system has. The values in this
section should be given as alias = monitor_name
, as in the output of
xrandr --listmonitors
command. You may even remove existing sections and
add more sections for your display driver.
Each line in the [resolutions]
section signifies a resolution profile in
the format alias = [width_in_pixels, height_in_pixels]
. The profile
primary
should contain the resolution of your built-in display. You may edit
or remove the remaining values hdmi
and vga
.
Quick reference
usage: xrandr-extend [-h] [-p PRI_RES PRI_RES] [-e EXT_RES EXT_RES] [-m] [-n]
[-o] [-s] [-d]
profile
Extend a HIDPI screen to a normal DPI external display
positional arguments:
profile Use preset external resolution profiles (available:
['hdmi', 'vga']).
optional arguments:
-h, --help show this help message and exit
-p PRI_RES PRI_RES, --pri-res PRI_RES PRI_RES
Modify preset resolution of primary display (default
[3200, 1800])
-e EXT_RES EXT_RES, --ext-res EXT_RES EXT_RES
Modify preset resolution of ext. display (default
based on profile)
-m, --mirror Mirror the ext. display
-n, --pan pan the position of ext. display
-o, --only extend and use only ext. display
-s, --pos set the position of ext. display explicitly
-d, --dry-run Preview command without executing it
Examples
--------
# Default option requires only the scaling factors and display name
$ xrandr-extend --dry-run vga
$ xrandr-extend vga
$ xrandr-extend hdmi
# Other options to extend the display
$ xrandr-extend --pan hdmi
$ xrandr-extend --only hdmi
$ xrandr-extend -e 1024 768 -n vga # Pan with custom external resolution
Project details
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