[mythtv-users] HDPVR problems: Bad device?

[Michael]

On 11/03/2014 03:51 PM, Rod Smith wrote:
>
> I get "cat: /dev/video3: Input/output error". I get the same thing
> whether I do this as an ordinary user or as root. There's nothing in
> dmesg to elaborate on the I/O error.
>
>> Did you expect it to be video3 ?
>
> Sort of. I've got a PVR500 that becomes /dev/video0 and /dev/video1.
> Initially the HD-PVR became /dev/video2, but after I unplugged and
> re-plugged it a few times, it became /dev/video3.
>
> FWIW, I've rebooted and tried again with cat, and I get the same I/O
> error. (The HD-PVR is now /dev/video1. I'm actually using udev-created
> symbolic links to reference these devices in MythTV.)
>

Do you have good audio connectivity as well?  On my HDPVR, if the 
optical cable comes loose and the HDPVR doesn't get a signal, it will 
give input/output errors similar to what you have described.

Michael