HTPC to UMC-200 Hdmi audio problem [Solved]

[mlpayne]

I finally got my HDMI audio working from my PC. My PC has a GeForce GTX 670 connected to my UMC-200 (HDMI 4) that outputs the HDMI to a JVC RS-15 projector. OS is Windows 7. Here is what I had to do.

Download the Monitor Asset Manager utility from www.entechtaiwan.com/util/moninfo.shtm
Download the EDIDOverride.zip from the AVSForum thread www.avsforum.com/t/1091403/edid-override-thread
Connect the projector directly to the PC via HDMI, leave the UMC-200 unconnected
Boot and run the Monitor Asset Manager.
From the ‘File’ menu create an INF file for the display.
Open this INF file in a text editor and find the “EDID_OVERRIDE Add Reg” section. It should have one entry that starts with “HKR, EDID_OVERRIDE, “0”, ….
This is where another line needs to be added to tell the driver that the device supports Audio. Open the EDIDOverride.inf file and copy the second EDID_OVERRIDE entry (line 39) into this INF file, right below the HKR, EDID_OVERRIDE, “0” part. Save and close
Shutdown the PC and reconnect the UMC-200. PC <-HDMI4-> UMC-200 <-HDMI Out->Projector.
Boot and run device manager. Find the Generic PnP monitor section and update the driver. Choose “Have Disk” and point the updater to the INF file just created. Ignore any “driver not signed” warnings.
At this point I had to re-install the GeForce Driver and now I had PCM stereo audio.
To get 5.1 channel working I had to go into the control panel and tell Windows 7 that I had a 5.1 speaker configuration.
I hope this help anyone also having this problem.

[bootman]

Outstanding work.
That post should be stickied to help other HTPC users.

Bravo.

[solidstate]

I've been building and selling custom HTPCs for almost a decade and I've haven't ran into these issues in about five years.

I really think it's related to people not understanding the handshake procedure and I always connect the PC from a powered down state and turn on the devices in the proper sequence. Display first ALWAYS, pre/pro/avr and make sure you are on the correct HDMI in and then turn on the PC.

Once in OS you will have to change the default audio device to HDMI through the audio control applet.

I have found a lot of people don't install the DirectX API and they should do this as the boxed win7 doesn't include all the legacy DLLs etc. All the .net framework stuff and all of the Visual C++ libraries should be installed.

BTW Intel's video display drivers are garbage! Get an ATI or nVidia adapter.

Also make sure any display driver software overscan is turned off/set to zero.

Also in your TV make sure you have "dot for dot" turned on IE overscan is turned off.

PS also turn off any HDMI out audio passthrough features in the pre/pro/avr

[solidstate]

May 28, 2013 16:07:39 GMT -5 mlpayne said:

I finally got my HDMI audio working from my PC. My PC has a GeForce GTX 670 connected to my UMC-200 (HDMI 4) that outputs the HDMI to a JVC RS-15 projector. OS is Windows 7. Here is what I had to do.

Download the Monitor Asset Manager utility from www.entechtaiwan.com/util/moninfo.shtm
Download the EDIDOverride.zip from the AVSForum thread www.avsforum.com/t/1091403/edid-override-thread
Connect the projector directly to the PC via HDMI, leave the UMC-200 unconnected
Boot and run the Monitor Asset Manager.
From the ‘File’ menu create an INF file for the display.
Open this INF file in a text editor and find the “EDID_OVERRIDE Add Reg” section. It should have one entry that starts with “HKR, EDID_OVERRIDE, “0”, ….
This is where another line needs to be added to tell the driver that the device supports Audio. Open the EDIDOverride.inf file and copy the second EDID_OVERRIDE entry (line 39) into this INF file, right below the HKR, EDID_OVERRIDE, “0” part. Save and close
Shutdown the PC and reconnect the UMC-200. PC <-HDMI4-> UMC-200 <-HDMI Out->Projector.
Boot and run device manager. Find the Generic PnP monitor section and update the driver. Choose “Have Disk” and point the updater to the INF file just created. Ignore any “driver not signed” warnings.
At this point I had to re-install the GeForce Driver and now I had PCM stereo audio.
To get 5.1 channel working I had to go into the control panel and tell Windows 7 that I had a 5.1 speaker configuration.
I hope this help anyone also having this problem.

You should check to see if there is a firmware update for the JVC RS-15 as I bet that's the source of the issue.

[neo20013]

I'm in the same situation

I have an Emotiva UMC-200 and an Optoma HD82.

When connecting my Laptop by HDMI (Intel HD Graphics 5500), i get an image but i don't get any sound, and the UMC-200 is not displayed in the Playback devices.

I tried the method described in the first page, set up the .inf file with both UMC-200 and Optoma HD EDID values, but to no avail.

Could the reason be that the Intel graphics card discards the EDID override settings, as per this link: communities.intel.com/thread/25904?start=15&tstart=0

[neo20013]

Can anyone help me?

If i have everything connected (Laptop -> UMC-200 -> Optoma HD82), i got image but no sound.
In this case, there is no UMC-200 in the Sound Playback devices.

If i disconnect the UMC-200 ARC, i got sound but (obviously), no image.
In this case, the UMC-200 is available in the Sound Playback devices.

[neo20013]

Just to inform that i've managed to solve the problem, based on this Intel link: communities.intel.com/message/311924#311924

Basically its an Intel beta drivers for solving HDMI problems for HDMI Display Detection Issues.

After uninstalling the old driver, i installed the beta drivers, and everything now is working.