Bug 487864

Summary: Maximizing Firefox on certain monitor freezes plasmashell.
Product: [Plasma] plasmashell Reporter: jon
Component: generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: akselmo, kde, nate
Priority: NOR    
Version First Reported In: master   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description jon 2024-06-01 04:11:19 UTC
SUMMARY
With three monitors connected, when I maximize Firefox on the leftmost display, it freezes Plasmashell. If I interact with Plasma, such as clicking an application to open it, nothing happens, but when I minimize Firefox, those applications then open.

STEPS TO REPRODUCE
1. Connect three monitors.
2. Maximize Firefox on the left monitor.

OBSERVED RESULT
Plasmashell freezes

EXPECTED RESULT
Plasmashell works as expected

SOFTWARE/OS VERSIONS
EndeavourOS
KDE Plasma Version: 6.0.90
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.1

ADDITIONAL INFORMATION

Wayland
Nvidia 555 Beta Driver
Kernel: 6.9.3-zen1-1-zen 
CPU: AMD Ryzen 9 5900X
GPU: NVIDIA GeForce RTX 3080
Comment 1 jon 2024-06-01 04:12:22 UTC
https://streamable.com/mtxjuu
Comment 2 jon 2024-06-01 04:28:27 UTC
(In reply to jon from comment #1)
> https://streamable.com/mtxjuu

Wrong video 🤦

https://streamable.com/p6yy2k
Comment 3 Akseli Lahtinen 2024-06-11 08:09:38 UTC
Can't test this since I have not enough monitors, but just FYI, It says video is not available anymore.
Comment 4 Nate Graham 2024-06-11 19:34:38 UTC
It is actually *plasmashell* specifically that freezes, or is it something else, like maybe KWin?

Is Firefox running in XWayland mode, or native Wayland mode?

Does this happen on X11 too, or only on Wayland?

Does it happen in a new clean user account with the same screen setup?
Comment 5 jon 2024-06-11 20:11:34 UTC
This suddenly stopped happening, not sure which package upgrade fixed it.