[mythtv-users] PVR-150 Video Quality

[Noah Markon]

On 5/2/06, Steven Murphy <sdm1130 at gmail.com> wrote:
> I recently set up mythtv 0.19 (running on an FC5 machine) with a
> PVR-150MCE.  The install went perfectly and everything seems to be
> working well.  The only problem I have is with the quality of the
> PVR-150 video both in live TV and in recordings.  The color is almost
> non-existent (very grey picture) and the picture itself is very
> grainy.  I have made adjustments to the hue, saturation, contrast and
> brightness as well as doing some fine tuning but have had no luck in
> improving the video quality.  I also tried upgrading the ivtv module
> to 0.7-111 (from 0.6.4 I believe) but that didn't change anything.
> Can someone else who has a PVR-150 help me out?
>
> Thanks!


Wow.. I'm having the exact same problem, in fact I was going to write
a message basically saying the same thing. I was using an older
version of Knoppmyth when I decided to change things around, instead
of using Knoppmyth again I went with debian. While I had a really good
picture before, now my picture is washed out, grainy, and just
terrible in general. One thing I was thinking of changing was the
firmware, however i didn't have to time to test things out...


 Here's the output of my ivtv

dmesg | grep ivtv
tuner (ivtv): chip found at addr 0xc2 i2c-bus cx88[0]
tda9887 1-0043: (ivtv) chip found @ 0x86 (cx88[0])
ivtv:  ==================== START INIT IVTV ====================
ivtv:  version 0.4.4 (tagged release) loading
ivtv:  Linux version: 2.6.15-1-686 686 gcc-4.0
ivtv:  In case of problems please include the debug info between
ivtv:  the START INIT IVTV and END INIT IVTV lines, along with
ivtv:  any module options, when mailing the ivtv-users mailinglist.
ivtv0: Autodetected WinTV PVR 150 card (cx23416 based)
ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50]
tuner (ivtv): chip found at addr 0xc2 i2c-bus ivtv i2c driver #0
ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61]
tda9887 2-0043: (ivtv) chip found @ 0x86 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=tda9887, addr=43]
cx25840 2-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=cx25840, addr=44]
wm8775 2-001b: chip found @ 0x36 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=wm8775, addr=1b]
ivtv0: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
ivtv0: Encoder revision: 0x02050032
ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB total)
ivtv0: Allocate DMA encoder YUV stream: 194 x 10800 buffers (2048KB total)
ivtv0: Allocate DMA encoder VBI stream: 120 x 17472 buffers (2048KB total)
ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB total)
ivtv0: Create encoder radio stream
tuner: type set to 47 (LG NTSC (TAPE series)) by ivtv i2c driver #0
ivtv0: Initialized WinTV PVR 150, card #0
ivtv:  ====================  END INIT IVTV  ====================