Bug 465966

Summary:	1 Pixel Line on top of the Panel during fade in/fade out transitions
Product:	[Plasma] plasmashell	Reporter:	LUBE <LUBEPlays9999>
Component:	Panel	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED DUPLICATE
Severity:	minor	CC:	LUBEPlays9999, nate, niccolo.venerandi
Priority:	NOR
Version:	5.27.0
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Screenshot taken when the Panel was in the Fade Transition

Description LUBE 2023-02-17 22:36:23 UTC

Created attachment 156400 [details]
Screenshot taken when the Panel was in the Fade Transition

SUMMARY
***
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***


STEPS TO REPRODUCE
1. Enter edit Mode of a Panel
2. Set a Panel to Floating mode
3. Set the Panel to Auto Hide
4. Let the Panel Automatically Hide

OBSERVED RESULT
There's a 1 Pixel white line on the Top of the Panel during around 70% of the frames where the Fade effect Happens.

EXPECTED RESULT
Flush Movement of the Panel without the 1 Pixel Line on Top of the Panel

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.27.0
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION

Comment 1 LUBE 2023-02-21 11:08:15 UTC

I also Noticed that the same problem exists with the Start menu.

Comment 2 Nate Graham 2023-02-22 00:47:17 UTC

Are you using the Wayland session with a scale factor that's not 100%, 200%, or 300%?

Comment 3 LUBE 2023-02-22 07:43:22 UTC

(In reply to Nate Graham from comment #2)
> Are you using the Wayland session with a scale factor that's not 100%, 200%,
> or 300%?

I have a Laptop with a scaling factor of 125%, but this problem also exists on my Main PC where the scaling factor is in fact 100%. That's where i made the screenshot from.

Comment 4 LUBE 2023-02-22 13:19:06 UTC

I noticed that this only happens with the Breeze Theme...

Comment 5 Nate Graham 2023-02-22 14:00:29 UTC

Wayland or X11?

Is it fixed with Plasma 5.27.1?

Comment 6 LUBE 2023-02-22 15:41:31 UTC

(In reply to Nate Graham from comment #5)
> Wayland or X11?
> 
> Is it fixed with Plasma 5.27.1?

I'm running Wayland, and it's not fixed with 5.27.1.

Comment 7 Nate Graham 2023-02-22 21:05:40 UTC

Ok, that means this is Bug 465158, which should be fixed for 5.27.2. :) Issues like these are caused by one of those two bugs.

*** This bug has been marked as a duplicate of bug 465158 ***