Read the statement by Michael Teeuw here.
VGA Montitor
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@sdetweil if I lower the brightness and contrast to very low, will I still have glow?
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@aareben yes
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@sdetweil so then ill prob get an hdmi monitor
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@aareben same glow there, unless u can actually power it off.
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@sdetweil I’m pretty sure you can have the raspi turn on and off the screen through the hdmi. I will have to check on that.
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@aareben none of my displays support that. so I blank them
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I’m alone that my monitor turn off and not blanking???
I use:
Rpi3/rpi4 + hdmi/vga adapt + vga monitor -
@Bugsounet I’m Sorry I dont understand what your saying. Maybe a translation error
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I’m pretty sure you can have the raspi turn on and off the screen through the hdmi. I will have to check on that.
sure I works !
I use +/- same config of you :
RPI3B+ or RPI4 + HDMI/VGA apdator + VGA monitor (24pcs)
and my monitor shutdown and turn on with pir sensor -
A little off-topic, nevertheless relevant: I have a laptop with no VGA port and I still use a very old ViewSonic CRT 21" monitor with it, using a HDMI-VGA adapter; When my computer sends the sleep signal to my external monitor through the adapter, the monitor does sleep successfully, so I assume there must be a way to make the RBPI send the same kind of signal through the HDMI port.
