can't get monitor to turn on

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glorsplitz
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can't get monitor to turn on

Postby glorsplitz » Sun Aug 14 2016 - 16:48:17

I have another computer I needed to use, I disconnected the vga cable from the hdmi to vga converter from the slackware 14.2 raspberry pi,
connected to other computer, did my business, reconnected to raspberry pi, I turned off monitor and back on, monitor says "power save
mode press keyboard or move mouse", doesn't work, I know keyboard is connected caps lock light lights up.

ssh'd, /opt/vc/bin/tvservice is no help

/opt/vc/bin/tvservice -p
[E] Failed to initialize VCHI (ret=-1)

/opt/vc/bin/tvservice -o
[E] Failed to initialize VCHI (ret=-1)

Any suggestions? Thanks

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Exaga
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Re: can't get monitor to turn on

Postby Exaga » Mon Aug 15 2016 - 01:21:37

I seem to remember reading about some weird results when using a HDMI-VGA convertor with the Raspberry Pis. I'm not even sure about the specifics of the problem(s) I just remember thinking to myself 'avoid using them' if/when possible. Perhaps the following link might offer you some assistance...

https://thepihut.com/blogs/raspberry-pi-tutorials/34512708-troubleshooting-a-raspberry-pi-hdmi-vga-adapter

It's all to do with the screen you're using and the config.txt file settings, basically.
Exaga

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glorsplitz
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SOLVED!

Postby glorsplitz » Mon Aug 15 2016 - 01:34:29

Hi again Exaga

This is an old Dell 2003 monitor I had laying around. I dug around internet trying to find solution as I need to use the monitor with a couple other computers.

I disconnected the VGA cord and powered up the monitor no luck, tried monitor button combinations no luck, then I thought since I hadn't tried it, disconnect the HDMI to VGA connector waited a few minutes and there it was back to normal!

Thanks for the trouble shooting link, I saved that with all my other RPI stuff.

I'm really pleased with my Slackware 14.2 Raspbery Pi setup, thanks to you. Cheers!

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