Bug 409623

Summary:	After login green flicker
Product:	[Frameworks and Libraries] libplasma	Reporter:	Bennet <ennereu>
Component:	libplasma	Assignee:	Marco Martin <notmart>
Status:	RESOLVED UPSTREAM
Severity:	normal
Priority:	NOR
Version:	5.59.0
Target Milestone:	---
Platform:	Manjaro
OS:	Linux
Latest Commit:		Version Fixed In:
Attachments:	Video, which shows the green flicker

Description Bennet 2019-07-08 15:32:37 UTC

Created attachment 121387 [details]
Video, which shows the green flicker

SUMMARY
After login to KDE a green flicker appears.

STEPS TO REPRODUCE
1.Login to KDE 
2.Wait until desktop is fully build up 


OBSERVED RESULT
green flicker

EXPECTED RESULT
no green flicker

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.16.2  
KDE Frameworks Version: 5.59.0 
Qt Version: 5.19.0
Kernel:5.16-1,5.2rc7  

ADDITIONAL INFORMATION
Not sure wether its KDE or. frameworks-plasma
Could also be kernel side problem as it just appears with the kernels mentioned above.
Already issued on Manjaro Forum: https://forum.manjaro.org/t/nach-kernel-update-grunes-flackern/93071

Comment 1 Bennet 2019-07-11 12:23:49 UTC

Updated KDE Plasma to 5.16.3: issues still there.

Comment 2 Bennet 2019-07-12 16:13:13 UTC

After waking-up of standby-mode with LK 4.19 the issue appears too, then after reboot everything fine again.

Comment 3 Bennet 2019-07-28 10:16:51 UTC

Because of https://forum.manjaro.org/t/kernel-5-2-1-1-on-amd-hardware-weird-graphic-glitches/95853 I did a BIOS update but no improvements. So I did some further testing and created a fresh KDE user and surprisingly no issue on the fresh profile (with the problematic kernels mentioned above) Also noticed some boot errors and shutdown errors when using the problematic kernels. Additionally: 
When first login to the not fresh user and then the log out and login to the fresh user the issue appears too.

Comment 4 Bennet 2019-07-28 11:16:35 UTC

Fixed the boot,shutdown errors but still no improvements.

Comment 5 Bennet 2019-07-28 11:52:19 UTC

Seems to be related to Mesa. See https://bugs.freedesktop.org/show_bug.cgi?id=110199 (RX 400-500 issue with 75hz monitors)