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Old 01-15-2004, 09:42 PM   #1
Registered: Jun 2003
Location: Texas
Distribution: Slackware
Posts: 30

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Trying out Mythtv but The video looks horrible

I've installed MythTV and the video looks bad. First the color is off and the picture is doubled and has lines going through it. I know its not my video card because when I use freevo It looks great and I have no problems. The only reason that i'm trying mythtv is because I can't get the audio to record with freevo. I'm using a huappuage card. I'm using alsa for my sound drivers.

Thanx for reading.
Old 01-16-2004, 08:44 PM   #2
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Registered: May 2001
Location: Left Coast - Canada
Distribution: s l a c k w a r e
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It may not be your video card but it could very well be your xfree modules or player (mplayer, xine) drivers for said card.
Old 01-20-2004, 09:23 AM   #3
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Registered: Jan 2004
Posts: 1

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MythTV, Slackware, and Sound Recording

I had the same problem on Slackware 9.0 with MythTV -- video basically looked like scrambled cable channels.

I discovered that if I build MythTV with a 2.4.22 kernel source tree installed, and then run it under a 2.6.1 kernel, the problem goes away and it runs perfectly. I don't know why this happens, it's some interaction between the kernel drivers, the MythTV software, and gcc, evidently. I don't know if this would happen under Slackware 9.1 since that uses a newer gcc.

As far as sound under freevo... You need to load the btaudio driver to get digital audio from the tv tuner to output on /dev/dsp2. What I do is mute the line-in on my sound card, and tell MythTV to use /dev/dsp2 as the sound input instead of /dev/dsp. (You want to mute the line-in as that's normally how you hear sound from the tuner, and if you don't do this you'll hear it when you're recording movies and you'll hear two different, slightly out of sync sound streams when playing live TV with e.g. MythTV).

Anyway, I hope this helps.
Old 11-13-2011, 12:53 AM   #4
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Registered: Dec 2009
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Sorry to revive such an ancient post, but it sounds similar to my problem. I installed MythBuntu and am using a WinTV-HVR-1600 Tuner card. I can get both Analog Cable signals and Digital ATSC signals, but the video and audio from each are all are extremely poor quality. Glitching, lines, pixelation, etc...

I didn't build any of this. I just installed MythBuntu from a USB Thumbdrive and had hoped that all the driver stuff would have been worked out by now. Please point me in the right direction towards solving this issue.


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