[mythtv-users] HDPVR problems

[Mark Dryden]

On Fri, Feb 4, 2011 at 5:39 PM, Ramin K <ramin-list at badapple.net> wrote:

> On 2/4/2011 4:04 PM, Mark Dryden wrote:
>
>> Hi,
>> I followed the instructions found at http://www.mythtv.org/wiki/HDPVR
>> and everything goes well until I get to the part where you run the
>> command "cat /dev/video1 > test.ts".  I get the error message "cat:
>> write error: Bad address".  I'm not exactly sure why and I have been
>> trying to figure it out for the past 2 days.  I also can't view live tv,
>> it shows up as a black screen.  Any suggestions?
>>
>
>        Are you sure your device is on /dev/video1 instead of /dev/video0
> which is usually the default? Do an ls /dev and see which /dev/videoXX you
> have, then follow the wiki based on that.
>
> Ramin
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My device is on /dev/video0 for sure.  Using Roberts suggestion I ran
"v4l2-ctl --device=/dev/video0 --set-input=2" to set the video input to be
composite.  Now I can use the cat command to create a video file that
actually works.  I have a new problem though.  When I open the mythtv front
end, the video input is set to 0 which is component.  I think that's why I'm
getting a black screen when I try to watch live tv from the front end.  I
have the back end capture card setup to use the composite inputs but that
doesn't seem to work.  Also I now know that my channel change script doesn't
work.  Why would the front end switch the video input on me?
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