PC abruptly unplugged, now seeing random horizontal and vertical lines on display

[toastedgpu]

Quick recap:
Was using PC, watching a show using Chromium (PiP), cat brushes up against power strip and turns everything off connected to it since the switch is super easy to flick.

sigh and then boot back up.

Open the same show back up in picture in picture and try to move the window around and start noticing these horizontal and vertical lines forming randomly.

I open up YouTube and start dragging my browser around and have the same issue.

I randomly drag a non video tab around and it happens but NOT as often as when a video is open.

I already tried a handful of the fixes that were suggested involving chrome://flags, none of them seem to fix my issue.

At this point I’m just wondering, is my iGPU most likely screwed?

Thank you in advance to any input, I am pretty new to Linux so I apologize if anything isn’t in the correct format.

(I had to take a picture with my phone of the monitor as taking a screenshot would wipe all the lines everytime)

[xircon]

Boot off the install media - if the lines still exist, then you are screwed.

[toastedgpu]

Booted off the install media and the issue did not occur, thank god.

I switched DE’s to GNOME from Plasma and the issue also did not occur, I think something may just be corrupt with Plasma. Going to uninstall Plasma and reinstall.

Thank you for this.

[toastedgpu]

Uninstalled meta plasma and reinstalled.
Did not fix the issue.
But this issue seems to be only on Plasma Wayland.
Currently on Plasma X11 and the issue is not occurring.

Do you have any recommendations on what to do with that knowledge?

[ddnn]

Rename the below folder and restart, then log into Wayland and report back here.

~/.local/share/kscreen

Rename it to something like:

~/.local/share/kscreen (bkp)

[toastedgpu]

I wasn’t able to rename it “kscreen (bkp)”, but I was able to rename it kscreenbkp.

[ddnn]

Good. Any other name except for its original name does the trick.

Did you also restart after renaming it, then log back into a Wayland session to see if it changes anything or goes back to normal?

[toastedgpu]

Sorry I was in between classes.

I restarted after renaming and logged back into Plasma Wayland, still seeing the same behavior unfortunately.

[xircon]

Create a new user (and skin the cat)

[toastedgpu]

Hmmm okay, I’ll create a new user with admin permissions and if that fixes it I will just delete the original user with issues?

I’ll report back once I’m home again.

[ddnn]

Depending on which apps you have for the current user, you may want to transfer some important personal files as well as configuration files BEFORE deleting it.

[toastedgpu]

Well the good news is I’ve just started using eOS/Plasma and don’t have much so far that I care for losing. Just need to reinstall a couple of packages and set up my screenshotting tool.

[toastedgpu]

@ddnn @xircon Thank you both for your help so much.

I created a new user and am using Plasma Wayland on the account. Opened up a video in picture in picture and can confirm the issue is no longer happening.

I guess I’ll go ahead and marked this as solved and delete the original account.

Thanks again!