Bug 497143

Summary: Black screen on Wayland after sddm
Product: [Plasma] plasmashell Reporter: chris.longros
Component: generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED UPSTREAM    
Severity: normal CC: kde, mustafalken, nate
Priority: NOR    
Version First Reported In: 6.2.4   
Target Milestone: 1.0   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: journalctl output

Description chris.longros 2024-12-06 20:37:39 UTC
Created attachment 176401 [details]
journalctl output

The system boots, then sddm leads to a black screen under Wayland. Only X11 works at this time.

I attach part of the journalctl text output after logging out from the session and switching from X11 to Wayland
Comment 1 chris.longros 2024-12-06 20:43:11 UTC
My system info:
Operating System: Arch Linux 
KDE Plasma Version: 6.2.4
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.1
Kernel Version: 6.12.2-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 32 × AMD Ryzen 9 7950X3D 16-Core Processor
Memory: 30.5 GiB of RAM
Graphics Processor: AMD Radeon RX 550 / 550 Series
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: B650 GAMING X AX V2
Comment 2 Sal 2024-12-07 05:05:20 UTC
Seems to be related to a bug with Mesa 24.3.1: https://gitlab.freedesktop.org/mesa/mesa/-/issues/12253

I also have the same issue in OpenSUSE Tumbleweed. Downgrading Mesa to 24.3.0 or using X11 fixes the issue for me.
Comment 3 chris.longros 2024-12-07 08:53:45 UTC
The problem was solved by downgrading the mesa package