Visual glitches on a notification layer, if animations are enabled

[izmyname]

The original post: #6235 (comment)

My post with the demonstration: #6235 (comment)

tldr: If animations for notifications layer are enabled, and multiple notifications are fired, simultaneously, the animation glitches (as shown on the video). Updating the screen (spawning a window, a launcher or whatever else) removes the flicker. Disabling animations for notifications layer completely solves the problem.

[vaxerski]

patch.txt
check this

[izmyname]

Doesn't work

[tacsist]

Having same or similar issue using hyproled which uses decoration:screen_shader. @vaxerski I will try the patch later, unable this week.

[alba4k]

#9887 maybe related?

[alba4k]

I bisected it to e536b02, maybe you can check if that it the same for you?

[izmyname]

Some other time, if nobody else is willing to bisect and compare results.

[alba4k]

Up to you to bisect 🤷‍♂️

[izmyname]

I think there's no point in bisecting, as the original issue reports about this bug on version 0.39. Also, I believe I've seen the animation glitch way before the commit you've posted. I didn't pay much attention back then, because there weren't so many apps sending notifications, on my machine.

[izmyname]

@alba4k I'm bisecting another bug right now and can confirm, that the notifications glitch is present on commits predating the one you've posted. Just in case.

[izmyname]

What I've noticed - sometimes, the animation cleans itself up properly and there are no glitches on the screen. It depends on the amount of notifications and a size of a last expiring notification window, although there's always a chance it glitches, regardless. My speculation is that the glitch occurs because notifications expire before the animation finishes.

[ghost]

speculation is that the glitch occurs because notifications expire before the animation finishes.

maybe, #9811 fixes this but borks shiz

[izmyname]

@vaxerski a request to promote this to an issue.

[vaxerski]

@izmyname wish granted #10028