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Onboard HDMI Issue

 
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AFryia




Joined: 09 Mar 2006
Posts: 956
Location: S.E. Michigan VPH-G70Q


PostLink    Posted: Sat Feb 14, 2015 5:20 pm    Post subject: Onboard HDMI Issue Reply with quote


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I have a HTPC with an ASUS P8H67-M Pro CSM mATX motherboard; i3 2100 CPU running the iGPU (Intel HD Graphics 2000).

Recently I've added a HDMI switch. The HTPC is the only device the switch does not see. Even with manual switching it does not see an input from the HTPC. I've tried two switches with no luck.

I've run both DVI and HDMI directly to the PJ (DVI by John H Wman) for years, no issues.

Other than adding a dedicated graphics card what else is there?
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ecrabb
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Joined: 13 Mar 2006
Posts: 15909
Location: Utah

TV/Projector: JVC RS40, Epson 5010


PostLink    Posted: Sat Feb 14, 2015 6:58 pm    Post subject: Reply with quote

Computers can be very flakey if they're booted or woken up without a display attached (which is technically the condition the video interface sees if a different source is selected on the HDMI switch), or even if the display is removed while they're running.

Have you tried cold-booting with your HDMI sink (display) powered on, and with the HDMI switch set to that input?

SC
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CIR Engineering




Joined: 25 Aug 2008
Posts: 4264
Location: Chicago USA & Berlin Germany


PostLink    Posted: Sat Feb 14, 2015 7:25 pm    Post subject: Re: Onboard HDMI Issue Reply with quote

AFryia wrote:
I have a HTPC with an ASUS P8H67-M Pro CSM mATX motherboard; i3 2100 CPU running the iGPU (Intel HD Graphics 2000).

Recently I've added a HDMI switch. The HTPC is the only device the switch does not see. Even with manual switching it does not see an input from the HTPC. I've tried two switches with no luck.

I've run both DVI and HDMI directly to the PJ (DVI by John H Wman) for years, no issues.

Other than adding a dedicated graphics card what else is there?

If you have access to something like a Quantum Data QD780 or other HDMI analyzer than you could see what if anything the PC is sending. My guess is that is not very helpful though because most people don't have such test equipment laying around.

What switches have you tried? You could try and HDCP stripper as well (look at the $25 striopper thread).

craigr

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CIR Engineering




Joined: 25 Aug 2008
Posts: 4264
Location: Chicago USA & Berlin Germany


PostLink    Posted: Sat Feb 14, 2015 7:36 pm    Post subject: Reply with quote

ecrabb wrote:
Computers can be very flakey if they're booted or woken up without a display attached (which is technically the condition the video interface sees if a different source is selected on the HDMI switch), or even if the display is removed while they're running.

Have you tried cold-booting with your HDMI sink (display) powered on, and with the HDMI switch set to that input?

SC

Ah, now that's good advice!

craigr

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*NEW JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
X-Rite i1Pro2 Spectroradiometer & Spyder Colorimeters *For JVC auto-calibration when Klein & Jeti are not applicable
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
*NEW Light Illusion ColourSpace XPT Version β Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
*NEW OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
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Phone: 865-405-6892
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the big E




Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.


PostLink    Posted: Mon Feb 16, 2015 7:13 am    Post subject: Reply with quote

Ecrabb is right
I have booted machines before sometimes before turning on the display only to get no signal

Some video card software will auto detect some won't

It all depends on the driver software and the make and model of the video card

I have one machine where sometimes the audio will drop if the display is turned off for a period of time rebooting the machine would fix it

I checked for a newer driver and it has fixed the issue(went through the setup in media center to rule it out)

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AFryia




Joined: 09 Mar 2006
Posts: 956
Location: S.E. Michigan VPH-G70Q


PostLink    Posted: Tue Feb 17, 2015 2:41 am    Post subject: Reply with quote

I just gave up trying to get the onboard HDMI working. I wonder if the port was truly HDMI spec.

Plugged in an old ATI X600 card via DVI presto no problems.

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the big E




Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.


PostLink    Posted: Tue Feb 17, 2015 5:38 am    Post subject: Reply with quote

I would say the on board hdmi socket was bad(have seen this happen before)
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