Cannot lock screen with Ctrl+Alt+L after updating to Qubes 4.3

User Support General
1

Apparently, the shortcut Ctrl+Alt+L means “Logout” now, and pops up a dialog where I can choose Logout, Shutdown or Reboot. This keyboard shortcut does no longer lock the screen, and in fact, locking the screen is not an option in the dialog that pops up either. Super+L also does nothing.

In Qubes 4.2 and previous versions, Ctrl+Alt+L locks the screen immediately. I would like to restore that behavior, as I am used to that. I went through all settings app, but couldn’t find anywhere to configure this. Is it possible, and how?

If not, what is the new keyboard shortcut for locking the screen in Qubes 4.3?

2

Okay, I solved my own problem.

For anyone else having the same issue:

Open the Qubes app menu, select the cog wheel, System settings, Keyboard. Switch to the tab App shortcuts. Here are duplicate entries for Ctrl+Alt+L, one executing xfce4-session-logout (wrong), another executing xflock4 (correct). Delete the wrong one.

This is probably a race condition, and the duplicate entries may be worthy of a bug ticket, as failing to lock screen is a security issue. Apparently, Ctrl+Alt+Del also locks the screen.