| General > General Technical Chat |
| Putting a monitor to sleep when no video signal |
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| eutectique:
--- Quote from: ebastler on February 07, 2024, 11:03:10 am ---"The TV is not operated for a selected time" means that no buttons are pressed and no remote control commands are sent --- End quote --- Could be, but I only saw such behaviour in STBs, not TVs. Looks like the OP did not try this option yet. |
| ebastler:
--- Quote from: eutectique on February 07, 2024, 11:16:29 am --- --- Quote from: ebastler on February 07, 2024, 11:03:10 am ---"The TV is not operated for a selected time" means that no buttons are pressed and no remote control commands are sent --- End quote --- Could be, but I only saw such behaviour in STBs, not TVs. --- End quote --- I'm pretty sure that's how it works. The main use case is people falling asleep in front of their TVs -- video feed keeps coming in, but the user does not show any activity. :) |
| soldar:
Thanks all but it seems more complicated and trouble than it is worth. To complicate matters further one is VGA and the other HDMI, one is Windows and the other is Linux. And the monitor does not have a real "standby" state with quick on again but rather it is (soft) off which is called standby but takes a while to get going again. The only thing I can think of might be to disable the screen backlight. It would require opening the monitor but a simple hardware switch or relay could do it. This avoids the unwieldy remote control being in the way. In other words, the monitor stays "on" but the backlight is off so that when it is turned on again the image comes back on instantly. I think the backlight is what consumes most power and turning it off serves the purpose of darkening the screen which is mainly what I want. I might give this option further thought. This reminds me of a similar case I had and have with a microwave oven. All the MWs i have had when you open the door, take out your coffee and then close the door you still have to push a button to start it again so it is not working empty. But I got one which you need to dial the timer back to zero or when you close the door it will start up again. I found that extremely annoying and I was designing a circuit that would require the MW to be restarted manually after opening the door. But time went by and I just got used to turning the timer to zero before opening the door and now I do it reflexively, without thinking. So the circuit I was thinking of turned out to be unnecessary. I think turning the monitor off manually might be the easiest solution but i am going to keep thinking about the backlight. |
| ebastler:
How about setting the TV's internal timeout to, say, 4 hours to make sure it does not stay on forever? If you end up actually spending > 4 hours in front of your computer, the monitor switching off may be a welcome reminder to end that overly long session. ;) |
| soldar:
That's not really what I want. What I really want is the normal behavior of going to standby when there is no video signal from the computer. |
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