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Post by Basshead on Sept 8, 2014 18:31:27 GMT -5
When selecting between inputs the HTPC will not display, the XMC tries to lock with occasional picture flashing. cycling the HDMI cable is the only way to acheive a lock, then everything is fine...until you switch inputs, then the same scenario repeates. The last two AVR's I have had in this system had zero problems in this regard, nothing else has changed. I have a lot of experience with media servers/computers in home theater install's so this is especially frustrating on my personal system. Have tried all the usual fixes; different power up sequences, shorter/longer HDMI cables, Video drivers, different inputs, different resolutions and refresh rates, different colorspaces, nothing makes a difference, other than cycling the HDMI plug which forces another handshake which is always successful. The PC is a WIN7 with Intel motherboard with onboard video and is about 2 years old. Tech support has run out of ideas other than replacement. One thing that suggests that this might be a bug with certain PC's is that when we insert a HDCP blocker inline with the input everything works perfect! So IMO that points to a handshake issue is ocurring within the XMC-1 when the inputs are changed. The strange thing is this PC handshakes properly with every AVR I have tested it on. Anyone else using a HTPC with the XMC-1 with v1.1 firmware??
I am out of ideas
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Post by bluescale on Sept 8, 2014 19:10:37 GMT -5
Anyone else using a PC with the XMC-1 with v1.1 firmware?? I am out of ideas I'm using an HTPC with the XMC-1 on firmware v1.1. I have a dedicated GPU (Nvidia GTX 750ti), and have had absolutely no issues with HDMI handshakes. Does your HTPC support CEC? Most don't when using integrated graphics, but it's just a thought Have you tried a factory reset? |
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klinemj
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Post by klinemj on Sept 8, 2014 19:17:35 GMT -5
Are you using the PC for audio and video or video only?
Mark
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Post by Basshead on Sept 8, 2014 19:17:48 GMT -5
Thanks for your help, No CEC on this PC. I have not tried a factory reset but will give it a shot. All the settings are factory defaults as I wanted to make sure the HDMI switching was OK before setting up the audio side, but limited listening was very impressive.
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Post by Basshead on Sept 8, 2014 19:21:17 GMT -5
Mark,
Mostly DVD and BLURAY music, some movie's.
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klinemj
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Post by klinemj on Sept 8, 2014 19:25:07 GMT -5
But audio and video both...right? On some machines, I have read that the sources for some AVR's that the video will be fine if the audio is not HDMI. If your source is not fully digital rules compliant, this may be the issue. I never had it myself, but I have read that.
Mark
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Post by Basshead on Sept 8, 2014 19:31:37 GMT -5
Yes, both audio and video, I am pretty sure that the source is fully digital rules compliant as DTS MA or DOLBY HD play through the Emo just fine, if there were any hdcp issues this would not be the case.
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Post by bluescale on Sept 8, 2014 19:34:14 GMT -5
A few more questions...what onboard graphics chip are you using? Also, does the problem occur right from boot, right when Windows starts, or is it when you try to start playing media? If it's the last, is the media ripped or played from a disc?
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Post by Basshead on Sept 8, 2014 19:37:56 GMT -5
Tried a factory reset, no change...
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Post by Basshead on Sept 8, 2014 19:58:16 GMT -5
HTPC has a Asrock Z77 motherboard with Intel HD2500 onboard graphics, i5 processor. If you boot with the proper input selected first,then everything looks fine, all apps play fine, but don't change inputs or else no picture/audio when you switch back. Another clue; Windows is reporting the display device as "Digital television HSR82" Normally I would see Denon AVR or something similar. It would be helpful to know if this is normal or if are other PC's are showing something different.
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Post by socketman on Sept 8, 2014 20:39:18 GMT -5
Look for a little app called HDMI-ON it worked for me in a similar situation.
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Post by bluescale on Sept 8, 2014 23:37:39 GMT -5
Asrock motherboard with Intel HD2500 onboard graphics, i5 processor. If you boot with the proper input selected first,then everything looks fine, all apps play fine, but don't change inputs or else no picture/audio when you switch back. Another clue; Windows is reporting the display device as "Digital television HSR82" Normally I would see Denon AVR or something similar. It would be helpful to know if this is normal or if are other PC's are showing something different. I tried this out with my onboard video and couldn't reproduce the issue. I have an Asus motherboard, with Intel 4600 onboard graphics. Windows did indeed present a cryptic name similar to what you saw, although I don't recall now exactly what the name was. Out of curiosity, does your TV have CEC you can try disabling? Sorry to keep coming back to that, but I've seen all kinds of weird behavior between the XMC-1 or the UMC-200 and CEC enabled devices. When the XMC-1 is trying to lock onto the signal, what does the front panel for the XMC-1 say? |
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Post by rogersch on Sept 9, 2014 1:22:52 GMT -5
Hello bbgh35, maybe you can test it with another OS and see if the problems still exists. You could try OpenElec and install it on a bootable USB stick or second HD. Within 15 minutes you can verify if the problem is also available under a Linux based OS. |
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klinemj
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Post by klinemj on Sept 9, 2014 5:03:28 GMT -5
Do you have the option to use something else for audio like toslink? If so, try it and see if that helps.
Mark
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Post by Basshead on Sept 9, 2014 10:48:51 GMT -5
Out of curiosity, does your TV have CEC you can try disabling? Sorry to keep coming back to that, but I've seen all kinds of weird behavior between the XMC-1 or the UMC-200 and CEC enabled devices.
When the XMC-1 is trying to lock onto the signal, what does the front panel for the XMC-1 say?[/quote]
The XMC display is normal with an ocassional blink of the video description line when trying to establish a handshake, it says;1920x1080i/60 YcbCr 8 bits. After cycling the HDMI cable it changes to; 1920X1080P/60 RGB with a perfect lock.
What are you sending, RGB or YCbCr from your PC to the EMO? I have tried to get this PC to default its output to YCbCr but cant find anything in the Intel onboard video settings to do this, but I am not sure this would help but I'll try anything short of a motherboard replacement at this point
I am running a projector with a dvdo iscan pro video processor which does not have CEC, tried a Panasonic plasma with viera link (CEC) enabled and disabled- no difference. Tried a computer monitor with HDMI,no CEC, same result. CEC can drive you crazy but I am pretty sure it's not the culprit here.
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Post by Basshead on Sept 9, 2014 11:26:47 GMT -5
Answered my own question, I found the setting in the PC for YCbCr and it makes no difference. Xmc now reports 1920X1080i/60 YCbCr 8 bits, but still will not switch between inputs without pulling the HDMI cable first.
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Post by goldband on Sept 9, 2014 12:48:38 GMT -5
I have had no trouble with my HTPC, which is based on ASUS |MAXIMUS VII GENE Z97 MATX R
motherboard and integrated graphics from INTEL|CORE I7 4770 3.4G 8M R. PC reports display is 'Digital television HSR82'. Note
on the output side I have both HDMI outs connected, to a JVC projector and a Sony TV
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klinemj
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Post by klinemj on Sept 9, 2014 18:29:34 GMT -5
Just repeating this one...in case you missed it: Do you have the option to use something else for audio like toslink? If so, try it and see if that helps. |
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Post by Basshead on Sept 9, 2014 20:11:07 GMT -5
Audio and Video is the problem, besides toslink doesn't support lossless audio like DTS-MA or Dolby-TrueHD but thank you for your suggestion.
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klinemj
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Post by klinemj on Sept 9, 2014 20:49:41 GMT -5
My point is...try it and see if it solves your issue. Either way, you narrow your troubleshooting. Not like you have to keep it that way.
Mark
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