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I am curious if it's possible to adjust the time that the lock screen stays up? Specifically this is when,

  1. I intentionally lock the computer with Ctrl + Alt + L
  2. Some time passes, I think about 1 minute currently <-- I want to adjust this
  3. The screen is powered off automatically

Other questions I have found deal with the situation where the computer is not locked intentionally. I am pretty sure it is powering off the display much faster than the settings those questions refer to indicate.

Context: I would like to work around another problem: the Thunderbolt 3 connection from my laptop's Intel graphics to my 4K @ 60Hz display is a bit finnicky, requiring it to be reconnected several times before getting the right mode. I'd like to still have the security of the lock screen when I step away, but not have to reconnect it. When the display powers off, sometimes this failure often happens. The same issue occurs with a slightly newer work laptop running Linux on the same Thunderbolt 3 monitor. I cannot find any fixes, and I believe it's a newer Intel driver issue, introduced in the past year or so. I have tried another cable, and a Macbook Pro always connects without issue.

1 Answer 1

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For the first question, you may use Unblank lock screen extension if you're running Ubuntu with default GNOME desktop.

Ubuntu 22.04 can install the extension by using Extension Manager app (available in Ubuntu Software). And, old Ubuntu 18.04/20.04 may install it from extensions.gnome.org

It by default only unblank lock screen when running on AC power, though it has options to make it also work when on battery, and set a time delay (30m, 60m, 90m, 120m, or custom value via Dconf Editor) until blank screen.

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