https://bugs.kde.org/show_bug.cgi?id=486735
Bug ID: 486735
Summary: System completely locking down "randomly?" when using
an eGPU
Classification: Plasma
Product: kwin
Version: 6.0.4
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: grave
Priority: NOR
Component: core
Assignee: kwin-bugs-n...@kde.org
Reporter: lokl...@proton.me
Target Milestone: ---
Created attachment 169278
--> https://bugs.kde.org/attachment.cgi?id=169278&action=edit
Some (maybe useful) logs captured via sudo journalctl -b-1 | tail -n50 after a
crash.
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SUMMARY
System completely locking down "randomly?" when using an eGPU
STEPS TO REPRODUCE
1. Use KDE Plasma 6 Wayland
2. Have an eGPU connected (for me, it's an AMD RX580 connected via TB3)
3. Wait, and eventually, after an undetermined and possibly variable time, the
whole system will completely freeze.
OBSERVED RESULT
When using my eGPU (laptop screen turned off), KDE Plasma (kwin) runs alright
but I had to set KWIN_DRM_DEVICES in /etc/environment to make it use the eGPU
by default so I can get the full 144fps in kwin.
But, at random times (have not found any pattern), the system completely locks
down :
the external screen is on, but completely frozen
NO input is taken (not even the REISUB method works)
even SSH doesn't connect
I have to force shut down my laptop by long pressing the power button.
EXPECTED RESULT
The system shouldn't freeze / lock down at all.
SOFTWARE/OS VERSIONS
Windows: N/A
macOS: N/A
Linux/KDE Plasma: Fedora 40 Linux 6.8.8-300
(available in About System)
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0
ADDITIONAL INFORMATION
Full Specs :
i5-1335U
16GB DDR5
1TB NVMe
Intel Iris Xe (iGPU) -> 1920*1200 @60hz laptop screen
AMD RX580 (eGPU) -> connected via HDMi to a 1920*1080 @144hz external display
The eGPU is connected via ThunderBolt3 (TB3)
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