After pressing Ctrl+Alt+F? to switch to another TTY (both graphical or not) I get a 3-4 seconds delay where I still see the "old" TTY before the screen switches (which is then almost instant).
In syslog, I can see that the seconds are lost right before this message:
Apr 26 09:58:32 pc-name gdm3: GLib: Source ID 141 was not found when attempting to remove it
More syslog:
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (**) Option "fd" "48"
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) event2 - Power Button: device removed
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (**) Option "fd" "45"
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) event1 - Power Button: device removed
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (**) Option "fd" "26"
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) event0 - Sleep Button: device removed
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (**) Option "fd" "73"
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) event4 - Microsoft Natural® Ergonomic Keyboard 4000: device removed
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (**) Option "fd" "82"
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (**) Option "fd" "27"
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) event3 - Logitech USB-PS/2 Optical Mouse: device removed
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (**) Option "fd" "82"
Apr 26 09:58:29 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) event5 - Microsoft Natural® Ergonomic Keyboard 4000: device removed
Apr 26 09:58:32 pc-name gdm3: GLib: Source ID 141 was not found when attempting to remove it
Apr 26 09:58:32 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) systemd-logind: got pause for 13:67
Apr 26 09:58:32 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) systemd-logind: got pause for 13:69
Apr 26 09:58:32 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) systemd-logind: got pause for 13:64
Apr 26 09:58:32 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) systemd-logind: got pause for 13:65
Apr 26 09:58:32 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) systemd-logind: got pause for 13:66
Apr 26 09:58:32 pc-name /usr/lib/gdm3/gdm-x-session[2489]: (II) systemd-logind: got pause for 13:68
Apr 26 09:58:32 pc-name /usr/lib/gdm3/gdm-x-session[6994]: (II) systemd-logind: got resume for 13:69
Apr 26 09:58:32 pc-name /usr/lib/gdm3/gdm-x-session[6994]: (--) NVIDIA(GPU-0): DFP-0: disconnected
- Happens only after upgrade to 20.04.
- Happens with both Displayport and HDMI
- Interestingly the delay does not happen when the screen is locked, then also that line does not appear in syslog.
I had a similar issue before, but this was a delay when creating the new X session, while the new delay happens when shutting down the current X session.
How to find out (and eliminate) what is blocking the x-session shutdown ?
0 Answers