How do I prevent Ubuntu from putting my monitor to sleep?

Question

Ubuntu 10.04

Under Preferences > Power Management I have changed the settings to never put the computer to sleep and never to put the display to sleep.

My display still goes to sleep and I am prompted for my password when I leave the computer unattended.

I would like to be able to hit the "Lock Screen" app I added to the top panel to lock my screen, but otherwise I would like it to just stay on.

Thank you.

Solution 1

Check System>Preferences>Screensaver and see if "Activate screensaver when computer is idle" is checked.

Also, if you hit Alt + F2 and enter gconf-editor then navigate to /apps/gnome-power-manager/lock you can see if blank screen is checked.

Solution 2

Things have changed since this post was submitted. Go to System Settings in the top right corner of your screen, select Brightness and Lock and set "turn screen off when inactive" to never.

hope this helps all future users.

Solution 3

You can use gsettings for enabling and disabling monitor from going to sleep:

• Disable turning off screen

  gsettings set org.gnome.desktop.session idle-delay 0

• Enable turning off screen with 5 min delay

  gsettings set org.gnome.desktop.session idle-delay 300

source : https://askubuntu.com/a/788456/88543

Comments

[David Krider]

Seems Ubuntu-specific. Should it not be moved to askubuntu.com? (Where I'm pretty sure it would be a dupe.)

[rybl]

Which one out of curiosity?

[CT.]

I believe the screensaver setting did the trick. I also did check in /apps/gnome-power-manager/lock and blank screen is not checked.

[Peter Chaula]

Nope, doesn't work. The screen still turns off when you lock

[Brotzka]

Also works for PopOS 21.xx

[Slaus]

Did so, but it sill goes sleepy

[Admin]

The configuration editor shows only /apps/gconf-editor and /apps/schemas/apps/gconf-editor. The both have an entry called bookmarks and nothing else is there.