Ack wrote:I've had two of those cards for about 18 months and haven't experienced anything like that. I have a good OTA signal and very rarely have any problems with the picture. I'd go with what Hauppauge says and exchange the card. A small wait to get set up is better than a long time fighting with issues.
I'm not an expert by any means with Media Center so someone else may have other tips you can try. For mine, though, I built the PC, installed the antenna, set up Media Center and it just works.
makryger wrote:What you describe sounds like signal issues to me. Unfortunately, Windows Media Center tends to be a bit more sensitive than set top boxes to low signals or low signal-to-noise ratios, and this results in the blocky corruption you describe. Even if your signal level is strong, the SNR still could be problematic. I'd recommend looking at all the components and cables that lead up to your HTPC- including splitters and coax cables. Try some better quality cable and try eliminating splitters as much as you can. (Even if its temporarily, to determine whether that helps). Of course, it could be the card thats the problem, but more often than not, its the signal coming into the card.
dmagerl wrote:If you really truly have digital cable, Then you shouldnt be seeing problems like that, even with poor signal. A QAM tuner should just take the digital cable signal, decode it, and then store it to disk. It doesnt affect the quality of the video at all. Poor signal should result in either entire rows of pixels missing or the "no signal" screen. What you describe sounds like tearing and overly processed edge enhancement. Which, to me, points to your video card not your tuner card.
Or it could be you are really receiving analog signals, they could still be around even on a digital cable system. Analog cards do some "enhancement" to the signal that could result in what you see but my guess is its still your video card thats at fault.
We need more details about your hardware. I would also go to the video card's control panel and turn off any kind of picture enhancement features you can find and see if that improves the picture.
dmagerl wrote:I dont have cable so I dont know if MCE has any indication of A vs D. One way is to just plug an analog TV into the cable jack. If you have FIOS, it surely is all digital. Around here, Comcast has basic cable channels 1-29, analog. Anything higher is digital. you could also go into the edit channels/edit sources menu and look at the sources for your channels and see if MCE has combined analog, SD digital, & HD digital into one guide listing.
There are a lot of comments from people with ATI video boards and lousy pictures, most of them solved when all the picture enhancement features are turned off or set to 0 in the ATI control panel. As a test, you could also try using a computer monitor instead of your TV to see if things get better. You'll have to rerun the display setup in MCE.
dmagerl wrote:If you go to Edit Channels/Edit Sources, you should see 1 source for each tuner. So if you have 2 tuners, for any channel, there should be 2 sources. The channel number of each of those sources is also displayed. I dont think this is the problem though because you say its for all channels.
What do things look like when you play the short video clip during set up? Or for that matter, can you play any other video that didnt come from the tuner. If videos look good but the tv tuner doesnt, thats an indication its not the video card.
Yes, Catalyst Control Center is the ATI control panel.
makryger wrote:Ok, after reading your message a second time, what you describe could be a result of the video card moreso than the signal... (but just to respond to dmagerl, you can DEFINITELY have blocky pixelation with digital channels. Trust me. I've had to deal with it. it isn't necessarily all-or-nothing.)
But if it is the ATI Catalyst card, I'm sorry I can't offer you specifics, as I don't have an ati gpu, but there are multiple settings that ATI calls enhancements that may end up just causing weird artifacts on your HTPC. Try going into the catalyst control panel and turning off enhancements, or just switching between various settings. A bit of trial and error may solve your problem.
makryger wrote:To answer your question, I'd say try disabling the setting. See if it helps. If it doesn't, you can reenable it. No harm, no foul.
Deinterlacing sounds like one of those features that may cause undesired artifacts on your screen, or it could actually be reducing the amount of artifacts that you're getting.
makryger wrote:Could you print-screen to show us what the image looks like? Maybe that will do a better job in identifying whether its the GPU or the signal. If the sound is being lost too, that sounds like signal to me. Sorry for going back and forth.
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