Input devices stop working after logout or switch-user
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
gdm3 (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
laptop: HP G42
Ubuntu: 18.04 LTS
After clicking logout or switch user, once the system reaches the greeter/login screen, input devices -- keyboard, mouse, touchpad -- stop working, making it impossible to login back or shutdown.
Initially I thought the system is frozen, but log shows that it still responds to lid open/close, usb plug/unplug events, scheduled background tasks etc. Only the input devices, both onboard and external, are not usable. There's an external monitor attached to the laptop, and it shows the greeter and changes when lid is open or closed.
What works:
* logging in during fresh boot. Keyboard and mouse work at the greeter.
* suspend/resume, lock/unlock screen. I'm able to enter password and get back to my session.
* shutdown/restart while logged in.
What doesn't work:
* logout
* switch user
17.10 and other previous versions of ubuntu didn't have this issue on the same machine.
Workaround: restart gdm3 from a remote client.
affects: | ubuntu → gdm3 (Ubuntu) |
description: | updated |
Changed in gdm3 (Ubuntu): | |
status: | Incomplete → New |
The problem you describe sounds like the secondary issue in bug 1766137 that was fixed only a few hours ago.
Please wait a few hours/days (for the update to propagate to everyone), update your system, and if the problem persists then please run:
dpkg -l > dpkg.txt
and send us the resulting dpkg.txt