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andyturfer

Member

Registered: 2021-01-08

Posts: 96

[SOLVED] Is there any way to reset display/monitor setup to default?

On KDE Plasma 6, I have a dual monitor setup. Unfortunately, my computer is now stuck in this state where if I plug in my second monitor, both monitors just go blank (with an OSD message saying "Signal not supported").

I had this a couple of times on KDE Plasma 5, but always managed to fix it by deleting directory ~/.local/share/kscreen, and then rebooting. This directory no longer exists. I have tried deleting ~/.config/kwinoutputconfig.json and rebooting, but this doesn't work.

Is there any way to reset monitor setup to default on KDE Plasma 6?

EDIT:

I deleted ~/.config/kwinrc and ~/.config/kwinoutputconfig.json then rebooted, the problem persists. I also tried deleting everything in ~/.cache, but this didn't work either.

When I create a new user account, both monitors work as expected. I was thinking about just transferring everything over to the newly created user account, but this doesn't work for me as I'm unable to transfer all my signal-desktop data over (I would have to sign in again and would lose all my chats).

Last edited by andyturfer (2024-11-25 22:54:44)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 23,875

Re: [SOLVED] Is there any way to reset display/monitor setup to default?

.config/kwinrc contains some [DrmOutputs] headers you might be able to drop, assuming the issue has anything to do with wrong configurations.

When reproducing this issue what output do you get from

sudo journalctl -b | curl -F 'file=@-' 0x0.st

Last edited by V1del (2024-11-25 15:06:55)

andyturfer

Member

Registered: 2021-01-08

Posts: 96

Re: [SOLVED] Is there any way to reset display/monitor setup to default?

.config/kwinrc contains some [DrmOutputs] headers you might be able to drop, assuming the issue has anything to do with wrong configurations.

When reproducing this issue what output do you get from

sudo journalctl -b | curl -F 'file=@-' 0x0.st

The output when reproducing this issue: http://0x0.st/X5lk.log

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 23,875

Re: [SOLVED] Is there any way to reset display/monitor setup to default?

It's probably also some plasmashellrc config or so.

andyturfer

Member

Registered: 2021-01-08

Posts: 96

Re: [SOLVED] Is there any way to reset display/monitor setup to default?

Found the answer:

1. Sign in as a different user.

2. Delete /home/{original-user}/.config/kwinoutputconfig.json

3. Sign out and sign back in using your original user's credentials

4. verify the display/monitor configuration has been set to default.

Last edited by andyturfer (2024-11-26 02:32:17)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 23,875

Re: [SOLVED] Is there any way to reset display/monitor setup to default?

that makes little sense, your other user's kwinoutputconfig.json should not get used from a different user. But anyway, glad to hear it's solved.

andyturfer

Member

Registered: 2021-01-08

Posts: 96

Re: [SOLVED] Is there any way to reset display/monitor setup to default?

that makes little sense, your other user's kwinoutputconfig.json should not get used from a different user. But anyway, glad to hear it's solved.

Sorry, was unclear in my post. Step 2 was to delete the kwinoutputconfig.json file from my original user account (the account that was experiencing the issue). This doesn't work if you're signed in as the user as that file will be replaced when you reboot or log out.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 23,875

Re: [SOLVED] Is there any way to reset display/monitor setup to default?

that makes more sense, you could probably achieve it without a secondary user if you just log into a tty instead of the graphical env.