HDMI/DVI

[worthytee]

I have read on the net somewhere that one can connect HDMI PC to DVI monitor but not the reverse ie:-DVI PC to HDMI monitor, with or without adapters, can anyone tell me if this is true and if so why is this so.........worthytee

 

[worthytee]

Since I have installed a new graphics card (Geforce 8400 GS) to replace a DVI only Graphics card, I have both VGA and HDMI connections at both ends. I have tried two PCs and a laptop to no avail. I am now beginning to suspect that my monitor (Hannespree HF237 with both HDMI and VGA connections) may be at fault. I might add that it works perfectly on VGA but when I swich to HDMI my screen goes black for two seconds and then switches automatically to VGA.

 

[worthytee]

I have tried unplugging all VGA cons and my monitor is running with a 60hz refresh rate, I cannot see any way of increasing or decreasing this rate as it is the only one showing. Yes the monitor is LCD

 

[jithint]

Have you checked the source on your monitor? Make sure it's set to HDMI when you connect an HDMI cable.

 

[worthytee]

Yes I have checked the source on the monitor ans as I have said previously when I switch on it automatically switches back to VGA

 

[jithint]

Hmm then maybe something's wrong with your monitor. AFAIK the monitor shouldn't switch the source automatically. Try using another HDMI cable.

 

[worthytee]

I think you are right regarding the monitor and yes I have tried another cable.
As my monitor is still under warranty I have contacted Hannespree and it is now in hand hopefully to be replaced, thank you for trying to help

 

[UniqueName]

What does DVI have to do with this? You should be using one of two cables. VGA to VGA or HDMI to HDMI.

 

[worthytee]

My original graphics card (Nvidia GTX260) had only DVI outlets which I could adapt to VGI but could not get a signal DVI to HDMI. So I changed my graphics card to a (Geforce 8400GS) hoping I could get an HDMI signal, but still no joy even after trying another PC and a laptop, Hence my suspicions that the monitor
(Hannespree HF237) is faulty It works perfectly using VGA but not HDMI.
With respect to DVI to HDMI please read the article in http://compreviews.about.com/od/video/a/HDMI.htm /Backwards compatible

 

[UniqueName]

That's false. HDMI displays must accept DVI signalling but DVI does not have to output HDMI over DVI.
http://www.hdmi.org/learningcenter/faq.aspx#31

 

[worthytee]

Thank you very much for that piece of information. However my monitor is now away for checking and possibly repair under warranty. When it returns I will check it out by replacing my DVI only graphics card and use an adapter to get a HDMI signal, if it is successful I will let you know....Thanks again.... Tom W

 

[worthytee]

To All who replied to my thread regarding no HDMI input to my monitor. Thank you very much for your suggestions but I sent my monitor away for investigation and possibly repair under warranty and received a reply today tp the effect that an input board was faulty, has been replaced and will be returned forthwith.
Thanks to Dadiggle, Jithint, and uniquename, for your help.