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I just installed Ubuntu Studio 19 and I've adjusted my power management settings to NEVER switch off or go to sleep but it still blanks my screen. I double checked my monitor and it's not doing it by itself. I've rebooted the system but it's still doing it.

It's irritating to have to keep moving the mouse so I can watch video.

Please advise.

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    There is no Ubuntu 19, are you on 19.04? (if so I would install 19.10 or release-upgrade asap as it's nearing it's EOL) or 19.10? Have you told your xfce4-screensaver not to blank the screen?
    – guiverc
    Dec 27, 2019 at 1:13
  • Is Display Power Management in the settings enabled? Try to add the Power Manager Plugin to your panel and use it to enable the Presentation Mode.
    – mook765
    Dec 27, 2019 at 1:22

2 Answers 2

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There is an app called caffeine that make sure this problem does not occur:

Step 1: Add the PPA

sudo add-apt-repository ppa:caffeine-developers/ppa

Step 2: Update package list

sudo apt update

Step 3: Install caffeine

sudo apt install caffeine
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Run this to disable screen blanking timeout. It's doing the same thing as setting to "never" so YMMV

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

Also.. if you are using VLC to play your media, there's a setting in the preferences under the video tab, check the disable screensaver option

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