Bug 488785

Summary:	GTK apps from Flatpak freeze on launch on Wayland in Plasma 6.1
Product:	[KDE Neon] neon	Reporter:	solarflame
Component:	general	Assignee:	Neon Bugs <neon-bugs-null>
Status:	REPORTED ---
Severity:	major	CC:	adam, carlosd.kde, jr, neon-bugs-null
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description solarflame 2024-06-20 12:54:26 UTC

SUMMARY
Whenever I try to use a GTK app installed from Flatpak on a wayland session, the window freezes after a second, renders the app unusable, and requires terminating the process to close the window, I have tried with Bottles, Trayscale, and Flatseal, all of them have the same result. They were working just fine before the update to Plasma 6.1

STEPS TO REPRODUCE
1. Install an app built with GTK from Flatpak
2. Launch the app

OBSERVED RESULT
The app window completely freezes and goes into the (Not responding) state

EXPECTED RESULT
The app works normally

SOFTWARE/OS VERSIONS
KDE neon user
KDE Plasma Version: 6.1.0
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.0
Linux kernel version: 6.5.0-41-generic (64-bit)
Graphics platform: Wayland
Graphics driver: Nvidia 555 drivers installed from ppa:graphics-drivers/ppa

ADDITIONAL INFORMATION
GPU: Nvidia Geforce GTX 1070

Comment 1 Adam 2024-07-07 16:24:13 UTC

I also have this issue. I don't know if it's the cause, but I also happen to be using the 555 proprietary drivers, although on a 1080 Ti.

I also noticed that in a Wayland session, the proprietary driver isn't loaded correctly (I'm not too familiar with Linux graphics pipeline, so "isn't loaded correctly" is my best guess), and it falls back to using llvmpipe instead, but everything works fine on X11.

Operating System: KDE neon 6.0
KDE Plasma Version: 6.1.1
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.0
Kernel Version: 6.5.0-41-generic (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-7700K CPU @ 4.20GHz
Memory: 31.3 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2