How can I reenable screen power saving?












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I am using Ubuntu 18.04.1 LTS with gdm and Gnome. Normally, I have things set so that the screen blanks after five minutes of inactivity and locks after five more minutes. But often lately, I find that the screen doesn't blank or lock at all after I've left the computer alone for much longer. I suspect one of the games I frequently play, or a Steam game wrapper, may be doing something to prevent the screen blank and not putting things back the way they were.



If I log out of the session manager and log back in, the behavior returns to normal. But after things are broken, changing the "Power > Power Saving > Blank screen" time in the Gnome control center doesn't fix it for the current session. I also read this Q&A and noticed my /org/gnome/settings-daemon/plugins/power/sleep-inactive-ac-type was 'nothing', but changing it to 'blank' had no effect during the current session either.



How can I investigate why or how the behavior was turned off, and is there a way to restore the normal screen blanking and locking behavior without restarting my session?










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    I am using Ubuntu 18.04.1 LTS with gdm and Gnome. Normally, I have things set so that the screen blanks after five minutes of inactivity and locks after five more minutes. But often lately, I find that the screen doesn't blank or lock at all after I've left the computer alone for much longer. I suspect one of the games I frequently play, or a Steam game wrapper, may be doing something to prevent the screen blank and not putting things back the way they were.



    If I log out of the session manager and log back in, the behavior returns to normal. But after things are broken, changing the "Power > Power Saving > Blank screen" time in the Gnome control center doesn't fix it for the current session. I also read this Q&A and noticed my /org/gnome/settings-daemon/plugins/power/sleep-inactive-ac-type was 'nothing', but changing it to 'blank' had no effect during the current session either.



    How can I investigate why or how the behavior was turned off, and is there a way to restore the normal screen blanking and locking behavior without restarting my session?










    share|improve this question

























      0












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      0








      I am using Ubuntu 18.04.1 LTS with gdm and Gnome. Normally, I have things set so that the screen blanks after five minutes of inactivity and locks after five more minutes. But often lately, I find that the screen doesn't blank or lock at all after I've left the computer alone for much longer. I suspect one of the games I frequently play, or a Steam game wrapper, may be doing something to prevent the screen blank and not putting things back the way they were.



      If I log out of the session manager and log back in, the behavior returns to normal. But after things are broken, changing the "Power > Power Saving > Blank screen" time in the Gnome control center doesn't fix it for the current session. I also read this Q&A and noticed my /org/gnome/settings-daemon/plugins/power/sleep-inactive-ac-type was 'nothing', but changing it to 'blank' had no effect during the current session either.



      How can I investigate why or how the behavior was turned off, and is there a way to restore the normal screen blanking and locking behavior without restarting my session?










      share|improve this question














      I am using Ubuntu 18.04.1 LTS with gdm and Gnome. Normally, I have things set so that the screen blanks after five minutes of inactivity and locks after five more minutes. But often lately, I find that the screen doesn't blank or lock at all after I've left the computer alone for much longer. I suspect one of the games I frequently play, or a Steam game wrapper, may be doing something to prevent the screen blank and not putting things back the way they were.



      If I log out of the session manager and log back in, the behavior returns to normal. But after things are broken, changing the "Power > Power Saving > Blank screen" time in the Gnome control center doesn't fix it for the current session. I also read this Q&A and noticed my /org/gnome/settings-daemon/plugins/power/sleep-inactive-ac-type was 'nothing', but changing it to 'blank' had no effect during the current session either.



      How can I investigate why or how the behavior was turned off, and is there a way to restore the normal screen blanking and locking behavior without restarting my session?







      gnome lock-screen






      share|improve this question













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      asked Jan 28 at 22:15









      aschepleraschepler

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