Bug 481137

Summary:	With NVIDIA GPU, ghost icons appear after changing wallpaper on other monitor
Product:	[Plasma] plasmashell	Reporter:	Lach Sławomir <slawek>
Component:	Desktop icons & Folder View widget	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	hein, kdedev, nate, notmart, xaver.hugl
Priority:	NOR	Keywords:	multiscreen, qt6, wayland-only
Version First Reported In:	5.93.0
Target Milestone:	1.0
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Ghost icons are inside red areas.

Description Lach Sławomir 2024-02-09 19:18:29 UTC

On Plasma6, I got ghost icons. I attached screenshot.

STEPS TO REPRODUCE
Sorry, but I do not known, why it appears. I only try to change wallpaper on second monitor by invoking special dialog using mouse. In next step, I cancel change.

OBSERVED RESULT
Wallpaper does not change (indent), but ghost icons appear.

EXPECTED RESULT
Nothing happens.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

Comment 1 Lach Sławomir 2024-02-09 19:21:29 UTC

Created attachment 165705 [details]
Ghost icons are inside red areas.

Comment 2 Nate Graham 2024-02-14 22:41:27 UTC

How bizarre. Do you by any chance have an NVIDIA GPU?

Comment 3 Lach Sławomir 2024-02-15 12:04:04 UTC

(In reply to Nate Graham from comment #2)
> How bizarre. Do you by any chance have an NVIDIA GPU?

APU from AMD and dGPU from NVidia. I use Wayland session of Plasma6. APU is default one, I think.

Comment 4 Lach Sławomir 2024-02-15 13:02:10 UTC

If this could be helpful. This happens on external screen. I am not very good in hardware standards, so I do not known if external screen is connected to APU or dGPU. I do not known, how mux working in my laptop. It is ASUS Zenbook Flip15.

Comment 5 Nate Graham 2024-02-15 16:07:52 UTC

Thanks. Based on the described symptoms, I suspect this is a graphical glitch caused by issues with the NVIDIA drivers, but I have no proof. I'll leave this open for now.

Comment 6 Zamundaaa 2024-02-15 17:15:53 UTC

Do the ghost icons go away if you move some window over it, or try to mark them with the mouse, to trigger a repaint of the affected area?

Comment 7 Lach Sławomir 2024-02-16 12:40:33 UTC

Ghost icons does not go away, when moving window.

Comment 8 Zamundaaa 2024-02-16 14:09:08 UTC

Okay, then this is relatively likely a bug in plasmashell, not in the driver

Comment 9 Nate Graham 2024-11-05 20:11:31 UTC

Does this still happens in Plasma 6.2.0 or later? I recall this being a bug we fixed a while ago.

Comment 10 Lach Sławomir 2024-11-06 13:05:55 UTC

Bug not appearing. Let's close this ticket. I will reopen it in future, If this bug appear again.