Arch Linux

mt_arch_user

Member

From: Montana, USA

Registered: 2023-01-17

Posts: 111

SOLVED Dual monitors not working

This morning, I opened Display Settings by right clicking on the desktop and was trying to adjust the settings to match brightness.
I apparently did something wrong as now I have two copies of one monitor.

[img=Display Settings]/hone/bart/Pictures/Screenshots/Monitors.png[/img]
I obviously can't figure how to include a screenshot of the window, so I'll do my best to describe it.

At the top of the configure window, both monitors are shown.
If I click on the Identify Screens button, a window pops up showing the correct information for each screen.
But, in the space below, where you can drag the monitors around, there is only one monitor shown.
I can't get it to show both monitors.

I assume the is a configuration file somewhere and I should be able to manually modify it to make them both show up but I'm afraid to muck around too much and end up with no display and then be unable to do anything.
Does anyone know which configuration file controls this process?

Last edited by mt_arch_user (2025-08-13 18:29:01)

mt_arch_user

Member

From: Montana, USA

Registered: 2023-01-17

Posts: 111

Re: SOLVED Dual monitors not working

I created a new user on this system and the monitors are working as they should.
This means the configuration file is somewhere in my /home directory.
But where?

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,070

Re: SOLVED Dual monitors not working

[img=Display Settings]/hone/bart/Pictures/Screenshots/Monitors.png[/img]

This is not how the internet works
=> https://imgur.com/upload

This means the configuration file is somewhere in my /home directory.

What desktop environment is this?

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mt_arch_user

Member

From: Montana, USA

Registered: 2023-01-17

Posts: 111

Re: SOLVED Dual monitors not working

[img=Display Settings]/hone/bart/Pictures/Screenshots/Monitors.png[/img]

This is not how the internet works
=> https://imgur.com/upload

Yeah, I know.  Just had to try it.

This means the configuration file is somewhere in my /home directory.

What desktop environment is this?

Sorry, my head was mush after 4 hours of trying everything I could think of.
I created another user and the system works.  I logged in with another DM and it works.  So, it has to be somewhere in KDE on Wayland.

I *believe* this happened when I tried to change the settings on the secondary monitor while I was on the primary.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,070

Re: SOLVED Dual monitors not working

https://wiki.archlinux.org/title/KDE#Un … lution_set

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

mt_arch_user

Member

From: Montana, USA

Registered: 2023-01-17

Posts: 111

Re: SOLVED Dual monitors not working

Everything I could find on the web referred to that same .local/share/kscreen.  But that file doesn't exist on my machine, thanks to wayland.
I did find that there was a problem in /home/bart/.config/kwinoutputconfig.json, so I copied that file from a different user and it is working as it should now.

Thank you for your input!
Bart