Bug 429537 - Graphical artifacts in plasmashell
Summary: Graphical artifacts in plasmashell
Status: RESOLVED UPSTREAM
Alias: None
Product: plasmashell
Classification: Plasma
Component: general (show other bugs)
Version: 5.20.3
Platform: Neon Linux
: NOR major
Target Milestone: 1.0
Assignee: David Edmundson
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-11-23 10:02 UTC by Grief
Modified: 2020-12-02 09:56 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
Screenshot of the issue (612.26 KB, image/png)
2020-11-23 10:02 UTC, Grief 		Details
support information log (7.78 KB, application/octet-stream)
2020-11-23 10:03 UTC, Grief 		Details
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Description Grief 2020-11-23 10:02:46 UTC 
Created attachment 133582 [details]
Screenshot of the issue

SUMMARY
On KDE Neon I experience heavy graphical issues when running the system in vmware or virtualbox with 3d acceleration enabled. Glitches are only appear in plasmashell, I can run steam, play games, watch webgl in firefox without an issue after I `kquitapp5 plasmashell`. No issues when I run the system on a bare metal (nvidia gtx1080 with open source driver) or with 3d acceleration disabled. I didn't experience issues earlier on the same setup, it started to reproduce somewhere in 5.18-5.20 update.

STEPS TO REPRODUCE
1. Install vmware workstation, enable 3d acceleration in it
2. Install kde neon inside

OBSERVED RESULT

plasmashell glithes

EXPECTED RESULT

plasmashell works without glitching

SOFTWARE/OS VERSIONS

`org.kde.KWin /KWin supportInformation` attached
Comment 1 Grief 2020-11-23 10:03:11 UTC 
Created attachment 133583 [details]
support information log
Comment 2 Nate Graham 2020-11-23 18:39:52 UTC 
Yikes!
Comment 3 David Edmundson 2020-12-01 23:50:41 UTC 
Graphic driver issues.

run "kcmshell5 qtquicksettings" and set render loop to basic and see if that still has issues.


If that still gives issues as a workaround you can also set the backend to software, which won't have these.
Comment 4 Grief 2020-12-02 09:56:29 UTC 
Thanks, David. In my case, changing the render loop from threaded to basic was enough. I see this defect is marked as 'resolved upstream' is it really resolved upstream or this status is set just because the issue is not in plasmashell?