On Sunday 10 February 2008 01:40:20 Tim wrote:
> Hello,
>
> I have been using MythTV with the latest ivtv drivers for some time.
> Then a few months ago, about 2/3rds of my channels went out. I don't
> believe I was making any changes to the software at the time. The
> channels I lost now all appear to be partially tuned to the wrong
> channel. For instance, I think channel 56 or thereabouts appears on
> most of the dead channels along with a healthy helping of fuzz over
> the top. The 1/3rd of channels that remain functional work fine.
>
> When this first occurred, I suspected it was an issue with my cable
> provider. Normal analog TVs worked fine on the line, but I thought
> perhaps the analog/digital conversion was more picky if there was a
> noisy input, so I didn't put a lot of effort into debugging since I
> was already in the process of moving.
>
> Now that I've finally moved in and had time to work on the mythbox, I
> observe the same symptoms. I'm on a completely different cable
> provider now, but still 2/3rds of my channels are duplicated fuzz
> from another channel. I have tested using ivtv-tune to verify that
> it's not just MythTV whacking out. Sure enough I still get fuzz on
> those dead channels when reading from /dev/video0.
>
> It is certainly possible that my card is dying, but I did run across
> a mailing list thread a few months back where other users had
> experienced the same bizarre behavior in the 350 and it was due to a
> driver bug. I have looked again for that thread but have failed to
> find it.
>
> So, my question is: has anyone else recently observed this issue? If
> so, was it a hardware problem or could the drivers be blamed at all?
>
> Here's a few details about my system configuration. I can certainly
> provide more in the future if necessary:
>
> Distro: Debian testing
> Kernel: custom 2.4.22 built from Debian sources
> ivtv: the drivers that come with the kernel + 1.0.3
> No 350 output framebuffer set up.
> Other 3rd-party modules: nvidia proprietary, lirc 0.8.2
>
> Thanks in advance for any help. Please let me know what commands
> you'd like me to run if you need more technical detail on my
> configuration.
Can you give me the ivtv initialization messages from your kernel log?
I'm particularly interested in the tuner that you have.
Regards,
Hans
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