[mythtv-users] Bad quality MythTV playback

[mythtv]

Are your channels fine tuned  to the exact frequency needed?

Start there.

Bruce

"Richard J. Sands" wrote:

> Bad MythTV playback quality
>
> When I watch live TV (or recorded TV) the quality is pretty crappy, there
> are waves going across the screen, it is fuzzy, and some channels have no
> color.  Certain channels look better then others and it is basically
> watchable but nowhere near as crisp as it should be.  (The issue is both on
> the monitor and TV-out).  I have run a recorded show’s .nuv file in mplayer
> and it looks bad there as well.  I have tried things such as checking
> deinterlacing, selecting Cable-hrc, /usr/lib/ivtv/test_ioctl -u 0x3000,
> /usr/lib/ivtv/test_ioctl -p 4, /usr/lib/ivtv/test_ioctl -f
> width=720,height=480, and /usr/lib/ivtv/test_ioctl -v input=3,output=1.
>
> I have done a test capture (cat /dev/video0 > /tmp/test_capture.mpg) and it
> looks good and crisp in mplayer, so it makes me think I need to tweak some
> MythTV setting.  Also, playing a DVD in MythDVD looks crisp.
>
> I have hunted the archives for a few days now and have not found the
> solution. So please let me know if you have any ideas.
>
> Thanks.
> -- Rich
>
> Setup:
> Built MythTV following Jarod C. Wilson’s install Guide (GREAT GUIDE!!!!)
> Hauppauge WinTV PVR-350
> nVidia GeForce 4 MX 440
> SoundBlaster Live 5.1
> Maxtor 200Gig Drive
> MSI VIA KT4 (AMD)
> 512 DDR Ram
>
> Modules.conf
>
> path[toplevel]=/lib/modules/`uname -r`/updates
> # default path
> path[toplevel]=/lib/modules/`uname -r`
> alias char-major-61 lirc_i2c
> alias eth0 via-rhine
>
> # ivtv modules setup
> alias char-major-81 videodev
> alias char-major-81-0 ivtv
> options ivtv debug=1
> options tuner type=2
> options msp3400 once=1 simple=1
> add below ivtv msp3400 saa7115 tuner
> add above ivtv lirc_dev lirc_i2c
>
> alias usb-controller ehci-hcd
> alias sound-slot-0 emu10k1
> # alias sound-slot-1 via82cxxx_audio
> # post-install sound-slot-1 /bin/aumix-minimal -f /etc/.aumixrc -L
>  >/dev/null 2>&1 || :
> # pre-remove sound-slot-1 /bin/aumix-minimal -f /etc/.aumixrc -S >/dev/null
> 2>&1 || :
> alias usb-controller1 usb-uhci
> alias char-major-195 nvidia
>
> # ALSA portion
> alias char-major-116 snd
> alias snd-card-0 snd-emu10k1
> # OSS/Free compatability portion
> alias char-major-14 soundcore
> alias sound-slot-0 snd-card-0
> # Sound card #1
> alias sound-service-0-0 snd-mixer-oss
> alias sound-service-0-1 snd-seq-oss
> alias sound-service-0-3 snd-pcm-oss
> alias sound-service-0-8 snd-seq-oss
> alias sound-service-0-12 snd-pcm-oss
> # Save & restore settings
> post-install snd-card-0 /usr/sbin/alsactl restore >/dev/null 2>&1 || :
> pre-remove snd-card-0 /usr/sbin/alsactl store >/dev/null 2>&1 || :
>
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