Bug 115511
| Summary: | Video system crashes sometimes when plugged into dock station on Dell E7450 | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | slawek |
| Component: | Video(DRI - Intel) | Assignee: | intel-gfx-bugs (intel-gfx-bugs) |
| Status: | RESOLVED INVALID | ||
| Severity: | normal | CC: | intel-gfx-bugs |
| Priority: | P1 | ||
| Hardware: | x86-64 | ||
| OS: | Linux | ||
| Kernel Version: | 4.4.5 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: | Previous boot dmesg: journalctl -k -b -1 | ||
Please file new drm/i915 bugs at the freedesktop.org bugzilla: https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel |
Created attachment 211021 [details] Previous boot dmesg: journalctl -k -b -1 * Facts ** Video freezes from time to time (randomly) after Dell E7450 being plugged into docking station with two external FHD displays attached (DP1-1 and DP1-2 in xrandr). ** I've got background shell script running which detects udev change and calls xrandr to enable two external displays - so this issue might happend after xrandr command or after plug-event itself (not really able to verify, it will be difficult to work without it running) ** I was hitting shutdown button after crash, so there might be shutdown-related events in log (at the end, I've hold it until system halted) * Guesses ** According to LEDs (not tested with SSH yet) system is responding normally after video freeze - disk LED blinks from time to time. ** One of external monitors might be already reading „empty signal” (if I understand correctly, it is no longer reporting that there is no signal, but instead it acts like there is perfectly black image displayed) * Attachments ** dmesg log from the crashed boot.