Ubuntu
gnome-screensaver package

  1. Bug #1292041
  2. Comment #63

Comment 63 for bug 1292041

Revision history for this message
Janghou (janghou) wrote :

I found a workaround in my case:
https://askubuntu.com/questions/1167445/monitors-do-not-enter-powersave-sleep-mode-after-screen-blanking/

Changing the input setting from *auto* to *hdmi* on my AOC monitor fixed the problem.

It seems monitors can *poll* the graphic card (CEC?): that way the computer somehow responds by waking up all monitors.

I consider this stil a bug. Not sure if this is a gnome-screensaver bug, but it is a nasty one (wasting energy).

IMHO Ubuntu should be able to turn of monitors (powersdave mode) with default factory setting.