Solved How to keep DVI-out from turning off

February 13, 2013 at 07:59:20
Specs: windows 7 x64 ultimate sp1 ie9, core2quad 2.33ghz 6gb ram
I've got a HP something with a 8400GS Nvidia card I believe. I'm upgrading Samsung tvs and this one didn't have a vga plug on it so I am unable to hook it up the way it used to be. I used to have a vga cable going straight to the tv and then audio going to my Onkyo TX-SR605 receiver.

The video card has vga, svideo and dvi out on the back of it. I bought one of the dvi to hdmi cables(already had a dvi to hdmi plug adapter that I found after buying the cable which works the same) so that I could run the computer by the dvi out since the svideo looked terrible the one time I tried it.

My problem now is that when I plug my hdmi cable to the back of my receiver, get the computer turned on and everything set up like I want it, it seems great until I switch from the computer input to another input on the receiver.

When I switch inputs, you can hear the computer make the sound that something has been unplugged and when you try to go back to it, the computer will never come back because either the resolution is messed up for the screen or the card is off. The only way I can get it to come back on is reset the computer by trying to get to safe mode, but instead of going to safe mode, click start with a lower resolution and load windows that way.

Is there anyway in the settings you can force the video card to default to dvi and force it stay on all of the time rather than thinking something is unplugged! It's almost like when it switches inputs on the receiver, it cuts the dvi off, but then when flipping back, the resolution is screwed up I guess and will not display or something?

I can plug a vga cord up to it and my smaller tv monitor and it works fine as long as I unplug the dvi out from the computer or the receiver. I think when I had the two connected at the sametime, I changed a setting to only show the Samsung monitor so that i why I have to unplug the dvi cable to make it show on the smaller monitor by vga!

Thanks for any help

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February 13, 2013 at 09:40:56
VGA is inferior to DVI/HDMI. If your TV has an HDMI input, why not connect the DVI to HDMI cable directly from the video card to the TV?

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February 13, 2013 at 10:19:15
If what riider suggests works you may need to deal with the sound, assumming you are using a speaker system fed by your receiver. You may be able to feed the receiver from your sound card outputs but may need to set which output to use. Not 100% sure that will work.

Do you have DVI in on the TV? If so, that would be easier to get the sound working. DVI and HDMI video are just about equivalent quality.

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February 13, 2013 at 19:28:19
✔ Best Answer
Thanks for ideas but I was finally able to get it figured it out. It's a windows thing that causes the issue. The reason I did go straight to the tv is because of the way I have everything hooked up. The tv has 3 hdmi inputs. The surround sound has 2 in and 1 out. When I tried to hook the att uverse box through the receiver, I could get audio from the hdmi on the onkyo, but it was not passing through to the tv. I even turned the hdmi audio out and I still could not get anything. I was wanting to pass the audio and then have it pass it back to the surround sound through optical. The tv is a smart tv and I have antenna hooked to it also so I was wanting that audio to get back to the surround sound.

I could get audio from the box or dvd player by hdmi but if I wanted to watch antenna or netflix, then I would have to change the audio input back and forth.

So now I have the box on input, the dvd player on another, and the other input is going to the onkyo which I have the computer and another hdmi cable going to our sony camera for when we hook it to the tv.

Back to the fix, I had to take a small piece of electrical tape and put on Pin 19 on the end of the hdmi cable since that is the hot detect pin. By blocking this pin, windows doesn't think that the monitor is being turned off when switching inputs.

Long story short though, it's fixed and there is a big write up here that might explain what I did and help another person.

Thanks again

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