Created attachment 171125 [details] Log from the crash SUMMARY Sometimes (more often than not) when connecting a USB-C dock with two external displays, the two displays fail to activate. Whether the issue occurs seems totally random. Sometimes disconnecting and reconnecting the dock fixes the issue, sometimes multiple iterations are required. Sometimes restarting the system and/or plasmashell seems to help (but this is anectodal could still be random). STEPS TO REPRODUCE 1. Connect USB-C dock with external displays 2. Configure display setup in "Display Configuration". In my case, the laptop screen is set to deactivated when the external displays are connected. 3. Work normally. 4. Disconnect dock and move on with your life. 5. Get back to work and connect the USB-C dock. OBSERVED RESULT Laptop display deactivates, but external display do not activate and stay black. EXPECTED RESULT External displays activate regularly upon connection. SOFTWARE/OS VERSIONS Operating System: Fedora Linux 40 KDE Plasma Version: 6.1.0 KDE Frameworks Version: 6.3.0 Qt Version: 6.7.1 Kernel Version: 6.9.5-200.fc40.x86_64 (64-bit) Graphics Platform: Wayland Processors: 8 × Intel® Core™ i5-8250U CPU @ 1.60GHz Memory: 15.5 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 620 Manufacturer: Dell Inc. Product Name: Latitude 7490 ADDITIONAL INFORMATION A system log is attached. This was taken on a fresh boot. At the first connection of the USB-C dock, the displays failed to activate. Disconnecting and reconnecting the dock fixed the issue at the first try. All this is captured in the log.
P.S.: about the attached logs I should mention that, upon reconnecting the dock, the external displays reactivated but one of the two displays started at low resolution (640x480) and was not reachable with the mouse pointer (Display Configuration would show it as "detached" from the main display). Usually when the disconnect-reconnect iteration succeeds in activating the displays, those respect the configuration I had previously set.
Please attach the kwin log > journalctl --user-unit plasma-kwin_wayland --boot 0 and the output of drm_info - without the dock connected - with it connected and working - with it connected and not working
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(In reply to Zamundaaa from comment #2) > Please attach the kwin log > > journalctl --user-unit plasma-kwin_wayland --boot 0 > and the output of drm_info > - without the dock connected > - with it connected and working > - with it connected and not working Hi and thanks for the feedback. Unfortunately, the USB-C port of my laptop is failing so I need to wait for a new one in order to properly test this. If the bug gets closed, I can reopen it whenever I have new information.
(In reply to Massimiliano L from comment #4) > Unfortunately, the USB-C port of my laptop is failing so I need to wait for > a new one in order to properly test this. If the bug gets closed, I can > reopen it whenever I have new information. Okay, let's do that