[mythtv-users] Channel 5 and 6, Black and White

[Will]

After spending a whole bunch of time on this I have
found the following:

Comcast in MA says they use Standard cable frequency
table, however it appears that channels 5 and 6 are 2
MHz above the standard cable (us-cable) frequencies,
thus it seems Comcast in MA uses the IRC frequency
table. (http://www.jneuhaus.com/fccindex/cablech.html)
This can be fixed by setting the finetune in mythweb
to 32 (1 represents 0.0625 MHz, so 32 is 2.00 MHz) for
channels 5 and 6.

I used the atrpms package repository to install
ivtv-firmware-audio, ivtv-kmdl-$KVER and ivtv (via the
intructions on Jarod Wilson's guide,
http://www.wilsonet.com/mythtv/fcmyth.php). Something
in these packages appears to be the problem. After
removing these via yum and compiling the ivtv drivers
myself channels 5 and 6 now have color and tune
correctly.

Anyway, I hope this information may be useful to
others using the PVR 500 with Jarod's Guide and
Comcast in the future.

--- Will <potsofdirt at yahoo.com> wrote:

> Recently I updated my mythtv box from FC3 to FC4. I
> have a PVR-500 installed in it, and set it up using
> Jarod Wilson's guide (except that I deviated a
> little
> and used the current SVN build of mythtv and
> mythplugins). 
> 
> On my previous install channels 5 and 6 did not come
> in right (black and white, fuzzy on channel 6),
> however after Googling the problem, I found a
> solution
> by finetuning the channels by a value of 20.
> 
> With the new install I could not get this to work. I
> have tried a whole host of fine tunings. I also have
> tried using a different frequency table
> (us-cable-hrc), however that ended up making all of
> my
> channels come in like crap (black and white, with
> crackly sound).
> 
> I am using Comcast analog cable on the north shore
> of
> Massachusetts. I have also tried fine tuning the
> channels to the IRC freunecies (2 MHz higher than
> standard) with no luck. Any suggestions on things I
> have not tried?
> 
> I also tried to install xawtv and tvtime to manually
> tune the channels, however I was not able to get
> either to work with the 30 minutes of time I had.
> 
> Thanks for any help.
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