https://bugzilla.kernel.org/show_bug.cgi?id=217915 Bug ID: 217915 Summary: System fails to resume correctly after Thunderbolt dock disconnected while sleeping Product: Drivers Version: 2.5 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: mark.blakeney@xxxxxxxxxxxxxxxxxx Regression: No After my comments on bug #216728, Mika Westerberg suggested I raise this new bug. I have a Dell XPS13 laptop and Dell WD19TB Thunderbolt dock and normally work on two dock connected screens + keyboard + mouse with the laptop screen closed. If my laptop suspends in this state, and I then unplug the dock (e.g. to take the laptop away in the morning) then the screen stays blank when I try to resume. This started when Arch Linux updated the kernel from 6.3.9 (good) to 6.4.1 (bad) and I have tested it bad with every point release of 6.4 since up to 6.4.12 and is also bad on current 6.5.3. I have generally been using the LTS kernel (currently 6.1.53) to avoid this bug. If you wait about 60 to 70 secs then the screen does switch on. On 6.4 kernels I had to wait about 2.5 mins, i.e. this delay has reduced on 6.5 kernels. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
