On Mon, Mar 16, 2009 at 2:10 PM, Corey Taylor <johnfivealive@xxxxxxxxx> wrote: > > Hi, I just recently bought a Hauppauge Win TV HVR-1600 card and am using it with MythTV running on Ubuntu Intrepid 8.10 64-bit edition. > > My hardware is an Asus A8N VM-CSM Motherboard with an Athlon 64 single core CPU. > > I'm using the cx18 driver compiled from Mercurial (as of last weekend) and download the latest firmware files available from Hauppauge. > > The card is working and I'm able to tune in clear QAM channels on Comcast Cable in Boston. > > The > problem is that when recording HD content I see excessive tearing in > the recorded video. I thought it might be my on-board video causing > this but I transferred a recording over to another machine and the > video plays back with the same artifacts and tearing as when I play it > on the machine that recorded the video. > > I previously had the KWorld ATSC 110 running in the same machine and it recorded HD content with no noticeable visual artifacts on the same cable line. > > I've tried tweaking many different settings both in MythTV and in X11 and nothing has made the problem go away. > > Is this card perhaps more sensistive to signal disruptions in my cable line perhaps? > > If > no, I was thinking that the problem could be due to driver problems in > the current development code. Are there any workaround for this problem > or should I give up and switch back to my KWorld card? > > Thanks very much! Corey, As far as I know, with ATSC/QAM you typically won't see the same sort of "tearing" artifacts with a digital source, as those sorts of distortions are usually a product of analog transmission. When you encounter these issues with digital sources, it's usually some product of the video card/X11 during playback. Perhaps you should make a small clip of MPEG available on a public HTTP server, so people can take a look and offer an opinion. Devin -- Devin J. Heitmueller http://www.devinheitmueller.com AIM: devinheitmueller -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
