[mythtv-users] Mythbuntu / Myth 0.28 - Screen goes off/blank after 1 hour during video playback

[faginbagin]

It could very well be DPMS. If mythfrontend is started while DPMS is 
disabled and then something else enables DPMS, that would explain the 
symptoms. You can tell from the mythfrontend.log and from the xset command.

If DPMS was disabled when mythfrontend started, it will log:
... ScreenSaverX11Private: DPMS is disabled.
And that will be the only log item mentioning DPMS for the current 
mythfrontend process.

If DPMS was enabled when mythfrontend started, it will log:
ScreenSaverX11Private: DPMS is active.
And every time you start playback, it will log:
... ScreenSaverX11Private: DPMS Deactivated 1
Every time you stop playback, it will log:
... ScreenSaverX11Private: DPMS Reactivated 1

A simple "grep DPMS mythfrontend.log" will tell you what mythfrontend is 
doing WRT DPMS. At least that's how it works in 0.27.

You can use the xset command to check the status of DPMS with:
xset q
The last few lines will tell you the current state of DPMS, including 
whether it's enabled/disabled, whether the monitor is 
on/off/standby/suspend, and what the timeout values are.
You can turn DPMS on with:
xset +dpms
You can turn it off with:
xset -dpms
If DPMS is on, you can turn the monitor on with:
xset dpms force on
and off with
xset dpms force off

HTH,
Helen

On 1/20/2017 4:02 PM, George Bingham wrote:
> Hey all,
>
> I've been seeing this issue recently too. It's not the screen saver.
> When I look at the logs I see the screensaver is disabled / enabled
> appropriately. I also have checked that I'm not running another
> screensaver.
>
> I have been thinking of disabling the dpms, but haven't actually tried
> that yet.
>
> Georg
>
> -- George
>
> On Mon, Jan 16, 2017 at 2:47 PM, Phill Edwards <philledwards at gmail.com
> <mailto:philledwards at gmail.com>> wrote:
>
>
>         We're having an issue with Mythtv.   After watching continually
>         for around 1 hour (probably exactly one hour) the TV is going to
>         sleep-mode.  The screensaver is not coming on, the TV just goes
>         straight to sleep.  If I push a key on the keyboard, it comes
>         back, the movie is still playing.
>
>
>     It sounds like a screensaver. Is this watching viideo or TV
>     recordings? If it's videos it could be MythTV is configured to use
>     an external player such as Xine or MPlayer in which case MythTV
>     logic to prevent the screensaver kicking in won't work.
>
>
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