[FFmpeg-trac] #436(FFplay:new): ffplay disables DPMS timeouts; no way to re-enable them during play

[FFmpeg]

#436: ffplay disables DPMS timeouts; no way to re-enable them during play
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               Reporter:  tpavlic     |                  Owner:  michael
                   Type:  defect      |                 Status:  new
               Priority:  normal      |              Component:  FFplay
                Version:  git-oldabi  |               Keywords:  DPMS
             Blocked By:              |               Blocking:
Reproduced by developer:  0           |  Analyzed by developer:  0
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 ffplay (and mplayer) appears to disable DPMS timeouts while it runs. I can
 verify that "xset q" shows that DPMS is enabled and timeouts are set
 correctly; however, so long as ffplay (or mplayer) are open, monitors
 refuse to sleep.

 With mplayer, I can at least issue an "xset dpms force off" and the
 monitors will turn off and stay off, but standby and suspend are
 impossible (monitors pop back on). With ffplay, even "xset dpms force off"
 causes monitors to pop back on.

 I can understand why this is a desirable behavior for playing movies.
 However, some applications (e.g., the electricsheep screen saver) are not
 deteriorated by allowing monitors to sleep. So there should be a way to
 turn off this DPMS-dodging feature of ffplay (and mplayer).

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/436>
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