Bug 470895

Summary:	The wallpaper will leak one line of pixel at the bottom
Product:	[Plasma] plasmashell	Reporter:	Firestar-Reimu <1900011604>
Component:	general	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	f.vdbosch98, kde, nate
Priority:	NOR
Version First Reported In:	5.27.6
Target Milestone:	1.0
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	The wallpaper will leak one line of pixel at the bottom

Description Firestar-Reimu 2023-06-11 08:30:27 UTC

Created attachment 159593 [details]
The wallpaper will leak one line of pixel at the bottom

You can see that there is one bright line of pixel on the top of bottom-bar, it is the wallpaper, and not only the wallpaper, kde apps like konsole and okular will leak edge/firefox/whatever else too.

maybe the same issue as https://bugs.kde.org/show_bug.cgi?id=423390

Operating System: Arch Linux 
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.106.0
Qt Version: 5.15.9
Kernel Version: 6.3.6-zen1-1-zen (64-bit)
Graphics Platform: X11
Processors: 8 × 11th Gen Intel® Core™ i7-1165G7 @ 2.80GHz
Memory: 15.3 GiB of RAM
Graphics Processor: Mesa Intel® Xe Graphics
Manufacturer: LENOVO
Product Name: 20WKA000CD
System Version: ThinkPad X13 Gen 2i

Comment 1 Firestar-Reimu 2023-06-11 08:32:29 UTC

I have never set `PLASMA_USE_QT_SCALING=1` option in my environment, this is an 2560x1600 screen with 200% scale.

Comment 2 ProodjePindakaas 2023-06-29 21:34:21 UTC

I am experiencing the same issue.
The 1 pixel line of the wallpaper will be displayed on top of full-screen apps as well and randomly appears and disappears for me.
Screen is 2256x1504 (3:2) at 150% display scaling.

Operating System: Fedora Linux 38
KDE Plasma Version: 5.27.6
KDE Frameworks Version: 5.107.0
Qt Version: 5.15.10
Kernel Version: 6.3.8-200.fc38.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × 12th Gen Intel® Core™ i5-1240P
Memory: 15.3 GiB of RAM
Graphics Processor: Mesa Intel® Graphics
Manufacturer: Framework
Product Name: Laptop (12th Gen Intel Core)
System Version: A4

Comment 3 Nate Graham 2023-09-14 19:12:52 UTC

If you have PLASMA_USE_QT_SCALING=1 set, it's Bug 423390. Otherwise it's Bug 414522. Arbitrarily marking as a duplicate of Bug 414522 since we can't multi-dupe and that one is still open.

*** This bug has been marked as a duplicate of bug 414522 ***

Comment 4 ProodjePindakaas 2023-09-15 11:42:21 UTC

(In reply to Nate Graham from comment #3)
> If you have PLASMA_USE_QT_SCALING=1 set, it's Bug 423390. Otherwise it's Bug
> 414522. Arbitrarily marking as a duplicate of Bug 414522 since we can't
> multi-dupe and that one is still open.
> 
> *** This bug has been marked as a duplicate of bug 414522 ***

I fail to see how these are duplicates. Both bugs you mention concern vertical 1px lines at the rightmost edge of the screen, while this report concerns a horizontal 1px line between the panel and full-screen windows.

Comment 5 Nate Graham 2023-09-15 17:13:12 UTC

The root cause is the same for both issues.

*** This bug has been marked as a duplicate of bug 414522 ***