Pretty much as the subject says, the screensaver keeps activating and locking me out while I'm watching a long video, even while in full-screen. I've been able to find posts discussing this issue in Ubuntu or in earlier (non-LXQt) versions of Lubuntu, but I haven't seen it for 18.10+ yet (gnome-tweaks isn't going to help much here).

Is there any way to prevent this from happening?

(Edit: I had the wrong version listed initially; I'm still seeing the error in 19.04.)

  • 1
    Lubuntu 18.10 is EOL (end-of-life; lubuntu.me/cosmic-etc-eol) as are all 18.10 releases as it was not a LTS release, so you should have release-upgraded to 19.04 already. Stick to LTS releases if you don't like release-upgrading every 6-9 months (18.10 = 2018.October + 9 months of life)
    – guiverc
    Sep 12 '19 at 9:21
  • 1
    This problem persists to Lubuntu 20.04 Jun 28 '20 at 3:27

Some programs are not really handling correctly the prevention of the screensaver, so I found really handy to use Caffeine whenever I was in trouble.

Can be easily installed as:

sudo apt-get install caffeine

There is also an indicator included in the program(caffeine-indicator) so you can make it run on startup so that you have the indicator be displayed in the tray to enable it whenever you want

  • I don't get what you mean by that, could you expand on your answer? thank you.
    – emilBeBri
    Nov 24 '20 at 20:02

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