<p dir="ltr"><br>
On Nov 3, 2014 5:29 PM, "Rod Smith" <<a href="mailto:mythtv@rodsbooks.com">mythtv@rodsbooks.com</a>> wrote:<br>
><br>
> On 11/03/2014 05:58 PM, Michael wrote:<br>
>><br>
>> On 11/03/2014 03:51 PM, Rod Smith wrote:<br>
>>><br>
>>><br>
>>> I get "cat: /dev/video3: Input/output error". I get the same thing<br>
>>> whether I do this as an ordinary user or as root. There's nothing in<br>
>>> dmesg to elaborate on the I/O error.<br>
>><br>
>><br>
>> Do you have good audio connectivity as well? On my HDPVR, if the<br>
>> optical cable comes loose and the HDPVR doesn't get a signal, it will<br>
>> give input/output errors similar to what you have described.<br>
><br>
><br>
> Thanks to everybody who's responded so far. I've made progress. It turns out that I swapped the blue and green lines (TWICE -- it's dark behind my AV stack!), and this seems to have confused the HDPVR. I can now get a video file when I do a "cat /dev/video1 > foo.ts".<br>
><br>
> MythTV is still giving me 0-length recordings, though. I expect this is some silly problem in the MythTV configuration, so I'll review that later this evening or tomorrow.<br>
><br>
> At least I know the hardware's OK. (I hate having to return things!)<br>
><br>
> _______________________________________</p>
<p dir="ltr">Try a sleep at the end of your changing script. The hdpvr needs the signal to be good and going before it can captured. Needs to be even longer if using spdif.</p>
<p dir="ltr">Jon</p>