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Add system unrecognized but monitor supported resolution in X
#!/bin/bash
# First we need to get the modeline string for xrandr
# Luckily, the tool `gtf` will help you calculate it.
# e.g. `gtf <hRes> <vRes> <refreshRate>`:
gtf 1920 1080 60
# In this case, the horizontal resolution is 1920px the
# vertical resolution is 1080px & refresh-rate is 60Hz.
# IMPORTANT: BE SURE THE MONITOR SUPPORTS THE RESOLUTION
# Typically, it outputs a line starting with "Modeline"
# e.g. "1920x1080_60.00" 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync
# Copy this entire string (except for the starting "Modeline")
# Now, use `xrandr` to add a new display mode. Pass the
# copied string as the parameter to the --newmode option:
xrandr --newmode "1920x1080_60.00" 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync
# Well, the string within the quotes is the nick/alias
# of the display mode - you can as well pass something
# as "MyAwesomeHDResolution". But, why though!?!
# Then all you have to do is to add the new mode to the
# display you want to apply, like this:
xrandr --addmode VGA1 "1920x1080_60.00"
# VGA1 is the display name, it might differ for you.
# Run `xrandr` without any parameters to be sure.
# The last parameter is the mode-alias/name which
# you've set in the previous command (--newmode)
# It should add the new mode to the display & apply it.
# If it doesn't apply automatically, force it with:
xrandr --output VGA1 --mode "1920x1080_60.00"
# That's it... Enjoy the new awesome high-res display!
# NOTE to make the change persistent over reboots:
# - save the script file (with the necessary changes)
# - run it at startup (search the web for "How To")
# Thanks for the feedback!
@saviobabu

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commented Sep 27, 2016

When i restart my computer it goes back to normal resolution.

@mikeloveapple2

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commented Jun 7, 2017

Nice Job!

@jotisa

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commented Apr 1, 2018

It works great on Linux Mint 18 x64

@asdf5252

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commented Jun 21, 2018

Hello debloper,

It goes to previous resolution when I restart my system, Is there any permanent solution for setting resolution so that It does not go to previous resolution ?

@TejaswiGunti

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commented Feb 14, 2019

Hello, I am Tejaswi Gunti..

xrandr --newmode "1920x1080_60.00" 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync
When I run the above command, it is throwing the error, " xrandr: unrecognized option '-newmode' ".. Can you please help me how to overcome the error/warning.. I connected Touch screen display to my PC via HDMI to VGA connector.. Some part of the screen(bottom) is missing i.e only 3/4th of the desktop screen is displayed on the touch screen

@frederikptk

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commented May 8, 2019

Hello, I am Tejaswi Gunti..

xrandr --newmode "1920x1080_60.00" 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync
When I run the above command, it is throwing the error, " xrandr: unrecognized option '-newmode' ".. Can you please help me how to overcome the error/warning.. I connected Touch screen display to my PC via HDMI to VGA connector.. Some part of the screen(bottom) is missing i.e only 3/4th of the desktop screen is displayed on the touch screen

Well it seems like you didn't copy the line correctly. It is '--newmode' instead of '-newmode'.

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