WMC7 TV Tuner Issues

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Rollux

362 posts

Ultimate Geek

#429161 20-Jan-2011 12:40

What GPU are you using? What CPU? Freeview HD is hard on hardware and will cause playback issues. Also it is possible the connection in the aerial plug to the PCB is bad, hence giving poor/no signal transmission to the actual tuner chip.

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fruztrated

35 posts

Geek

#429185 20-Jan-2011 13:57

My GPU is inside the Corei5 530 CPU. The tuner card is near new and I don't think that is an issue (but an interesting idea) :)

berrys

225 posts

Master Geek

#429203 20-Jan-2011 14:26

Very strange. I'm not familiar with the Core i5 530 other than its a newish cpu - it definately has a GPU that can handle H.264?

Are you able to borrow a separate video card (Nvidia 8800 series or above) to see if your GPU is the problem?

fruztrated

35 posts

Geek

#429212 20-Jan-2011 14:45

I will go and investigate but I'm pretty sure the 530 can handle it.

Unfortunately I am unable to try another graphics card as the tuner card occupies the only PCI-e slot on my Mini-ITX mainboard.

Mattv

242 posts

Master Geek

#429259 20-Jan-2011 17:00

There should be no problem with the CPU. I can play old recorded NZ Freeview stuff no problem with my similar setup.

As mentioned the TV setup should have found and been able to play the channels straight "out of the box" The only thing the postcode is used for is to get EPG info in theory but that doesn't work in NZ at the moment.

I would be looking at either the tuner card or the aerial.

Can you take the aerial feed that is plugged into the TV and test it on the computer?

What splitter arrangment do you have? Are all the aerial leads to the computer RG6? If you made them yourself check for any stray wires etc in the connectors. That caused me similar problems for quite a while.

fruztrated

35 posts

Geek

#429339 20-Jan-2011 21:02

I would think the CPU would be fine too. The aerial that I am using is the same one that I am using for the TV currently, I am just swapping it over from one device to another.

I have just transplanted the TV Tuner to an old computer (core i7 920, 6GB DDR3, GeForce 275, Win7 Pro) and there is no graphic pixelation/smearing occurring.

I am beginning to doubt the Core i5 540 (I thought it was a 530 but it's a 540).

Mattv

242 posts

Master Geek

#429352 20-Jan-2011 21:48

Does seem strange. My CPU is an i3 550 3.2GHZ and has no trouble as I said.

Maybe try recording a sample on the i7 PC that works and then try and play it on the i5.

What motherboard do you have?

Have you tried playing other HD H264 files at all (MKV etc)? What is the CPU usuage when playing either sort of file (Freeviw or MKV)?

Sharesies

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fruztrated

35 posts

Geek

#429356 20-Jan-2011 21:54

Good idea. I will try some MKV files tomorrow.

My mainboard is a GigaByte GA-H55N-USB3

I already squished the TV tuner back into the HTPC so might try recording on the i7 over the weekend.

Thanks for all youe help sofar too :)

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