Screen goes black after ten minutes in X11

December 12th, 2019

A little Linux (or Mint) issue I came across today: even if the screensaver was turned off with the standard preferences dialog and VLC tried to disable the screensaver too, the screen would turn black after ten minutes if there was no user interaction. It was not a power saving setting either. It turns out some versions of Mint might not turn off the oldschool X11 screen blanking function. Verify if this is the case for you with xset q, which should show zero as the blanking timeout value. If it’s 600 instead, try xset s off, and if it works for you, add the command to your startup items or wherever you see fit.

Filed under: linux,softat

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