https://bugs.kde.org/show_bug.cgi?id=508534
Bug ID: 508534
Summary: KWin Crash on Display Scaling Change (GTX 1060,
Nobara) - Desktop Becomes Unresponsive
Classification: Plasma
Product: KScreen
Version First 5.18.0
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Hello,
I am a new user to Linux, and I am reporting a critical and frustrating issue
with the KWin window manager on my Nobara system. I was using the system
without any issues for about two weeks, for gaming, music, and general use. The
problem first appeared when I needed to increase the font size on a website.
The crash occurs consistently when I change the display scaling. The desktop
becomes unusable, and I am forced to access a TTY.
Steps to reproduce:
On a clean installation of Nobara with the KDE Plasma desktop, go to Display
Settings.
First attempt: I changed the display scaling to 250%. The desktop crashed
immediately, even before the timer for reverting the settings expired.
Subsequent attempts: I tried changing the scaling to 125% and 150%. The desktop
remained functional, but it crashed after a reboot.
Additional Observations and Attempts to Fix:
The crash occurs with all the available kernels in the boot menu (kernel 14,
15, 16, and the rescue kernel).
A crash log message appears, but attempts to send the report fail.
After the crash, the screen goes black, and only the mouse cursor is visible.
I can still open and use the web browser by clicking on links in the error
manager's window.
The suspend screen can be accessed with Ctrl + Alt + Del.
I have tried editing the ~/.config/kdeglobals file to force the use of the
OpenGL renderer, but the crash still reoccurs.
I have searched for a solution on the official Nobara website, a Facebook group
("Linux Italia"), and the official Discord and Reddit support channels without
success.
My situation:
I am using a translator and the Gemini AI assistant to write this post, so I
apologize in advance for my poor English. I have a working Windows partition,
which allows me to keep the Nobara partition in this error state for testing
purposes. I am willing to provide any logs or run any commands to help diagnose
the issue.
System Information:
Operating System: Nobara Linux
Desktop Environment: KDE Plasma
Windowing System: X11 (the problem also occurs with Wayland)
GPU: NVIDIA GTX 1060 6GB
Driver: Proprietary NVIDIA drivers (automatically installed by Nobara)
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