2021-12-22 13:51:22 +00:00
|
|
|
#!/bin/bash
|
|
|
|
|
#########################################################################
|
|
|
|
|
# #
|
|
|
|
|
# Set display resolution #
|
|
|
|
|
# #
|
|
|
|
|
# Author: Anthony Axenov (Антон Аксенов) #
|
|
|
|
|
# Version: 1.0 #
|
|
|
|
|
# License: WTFPL #
|
|
|
|
|
# #
|
|
|
|
|
#########################################################################
|
|
|
|
|
# #
|
|
|
|
|
# Using this script you can change your display resolution #
|
|
|
|
|
# to any one you need. Just adjust some vars below and run script #
|
|
|
|
|
# (chmod +x needed). #
|
|
|
|
|
# #
|
|
|
|
|
#########################################################################
|
|
|
|
|
|
2022-07-10 06:42:40 +00:00
|
|
|
# https://gist.github.com/anthonyaxenov/c16e1181d4b8a8644c57ec8a1f6cf21c
|
|
|
|
|
|
2021-12-22 13:51:22 +00:00
|
|
|
# Set display name to work with. You can get it via 'xrandr --listactivemonitors'
|
|
|
|
|
display="HDMI-2"
|
|
|
|
|
# Set width of this display in px
|
|
|
|
|
width=1600
|
|
|
|
|
# Set height of this display in px
|
|
|
|
|
height=900
|
|
|
|
|
|
|
|
|
|
# Sometimes cvt and gtf generates different modelines.
|
|
|
|
|
# You can play around and look which of them gives best result:
|
|
|
|
|
modeline=$(cvt ${width} ${height} | grep "Modeline")
|
|
|
|
|
# modeline=$(gtf ${width} ${height} 60 | grep "Modeline")
|
|
|
|
|
|
|
|
|
|
# Some important data needed to xrandr:
|
|
|
|
|
modename="${width}x${height}_my"
|
|
|
|
|
params=$(echo "$modeline" | sed "s|^\s*Modeline\s*\"[0-9x_.]*\"\s*||")
|
|
|
|
|
|
|
|
|
|
echo "Set resolution ${width}x${height} on display $display:"
|
|
|
|
|
echo "$modename $params"
|
|
|
|
|
|
|
|
|
|
# Simple logic:
|
|
|
|
|
# 1. Switch display to safe mode which always exists (I believe) to avoid errors
|
|
|
|
|
xrandr --output $display --mode 640x480
|
|
|
|
|
# 2. If display aready have our mode -- we must delete it to avoid errors
|
|
|
|
|
if $(xrandr | grep -q "$modename"); then
|
|
|
|
|
# 2.1. Detach mode from display
|
|
|
|
|
xrandr --delmode $display $modename
|
|
|
|
|
# 2.2. Remove mode itself
|
|
|
|
|
xrandr --rmmode $modename
|
|
|
|
|
fi
|
|
|
|
|
# 3. Create new mode with freshly generated parameters
|
|
|
|
|
xrandr --newmode $modename $params
|
|
|
|
|
# 4. Attach mode to our display
|
|
|
|
|
xrandr --addmode $display $modename
|
|
|
|
|
# 5. Switch display to this mode immidiately
|
|
|
|
|
xrandr --output $display --mode $modename
|
