[mythtv-users] Mythbuntu running 7.10/ 0.21: Cannop open /dev/video0

[Brad DerManouelian]

On Apr 13, 2008, at 6:36 PM, Matt Emmott wrote:

> I built a Mythbuntu box recently, updating it via Synaptic to Myth . 
> 21. I can get about 5 HD channels over firewire but no 'clear'  
> channels, so I decided to try and use the inputs on my PVR-150 card,  
> which has been in the system since I built it. After removing  
> firewire, adding the Hauppauge card as an input and tuner source,  
> and scanning the channels, I tried watching LiveTV but only got a  
> blank screen. I downloaded and installed TVTime to test the tuner  
> outside of Myth and when I try launching TVTime I get the message  
> "ivtv: Invalid argument Cannot open capture device /dev/video0". / 
> dev/video0 does exist, and it appears to be working at least enough  
> that scanning for channels in Myth returns valid analog channels -  
> ie, the channels it finds match up with what I can get on a cable- 
> ready TV.

Please explain a bit better on how you have everything connected.  
Especially the PVR-150 as "an input and tuner source". Are you going  
through your set-top box to your PVR-150? Which input on the PVR-150  
are you using?

-Brad