https://bugs.kde.org/show_bug.cgi?id=444192
Bug ID: 444192 Summary: Crash when DisplayPort monitor connected Product: kde Version: unspecified Platform: Ubuntu Packages OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: general Assignee: unassigned-b...@kde.org Reporter: rser...@gmail.com Target Milestone: --- SUMMARY I just bought a Displayport Samsung monitor and when connecting it through USB-C and DisplayLink on my Ubuntu 21.04 a really weird behavior happens. The moment I connect the monitor KDE applications start to randomly crash and from then they cannot be started anymore. Looking at the logs I can repeatedly (around 3 million times!!) see the message: [warn] epoll_wait: Bad file descriptor I'm not able to see any other relevant log message. The most strange issue is that if I disconnect the monitor or if I connect it through regular HDMI the problem instantly disappears. I don't really know if it's a plasma or displaylink bug. The problem does not happen with other non plasma applications (chrome, firefox...) I filed a bug on DisplayLink already without answer yet: https://www.displaylink.org/forum/showthread.php?t=67936 Any hint what can be wrong? No STEPS TO REPRODUCE 1. Connect the monitor through displayport 2. continue working as usual 3. observe crashes kontact, dolphin, systemsettings, ... EXPECTED RESULT No crashes and regular workflow SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.23 (but the behavior is the same in 5.21 and 5.22 My KUbuntu is 21.10 (but before upgrading, the problem was present in 21.04) KDE Frameworks Version: 5.87, but with 5.86 was the same Qt Version: 5.15.2 -- You are receiving this mail because: You are watching all bug changes.