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-   -   Failed to open /dev/video0 (http://www.linuxquestions.org/questions/slackware-14/failed-to-open-dev-video0-4175454619/)

woddfellow2 03-19-2013 12:13 AM

Failed to open /dev/video0
 
In Slackware 14.0, when I try to mplayer /dev/video0, I get:

Code:

MPlayer 1.1-4.7.2 (C) 2000-2012 MPlayer Team

Playing /dev/video0.
File not found: '/dev/video0'
Failed to open /dev/video0.


Exiting... (End of file)

When I try anything v4l2-ctl or ivtv-ctl or ivtv-tune or whatever, it says that it "Failed to open /dev/video0". ls in fact says that /dev/video<whatever> exists:
Code:

crw-rw---- 1 root video 81, 0 Mar 18 21:52 /dev/video0
crw-rw---- 1 root video 81, 5 Mar 18 21:52 /dev/video1
crw-rw---- 1 root video 81, 3 Mar 18 21:52 /dev/video24
crw-rw---- 1 root video 81, 8 Mar 18 21:52 /dev/video25
crw-rw---- 1 root video 81, 1 Mar 18 21:52 /dev/video32
crw-rw---- 1 root video 81, 6 Mar 18 21:52 /dev/video33

The tuner card is a WinTV-PVR-500. It worked fine under Arch Linux i686. How do I fix this?

maciuszek 03-19-2013 02:04 AM

are you sure the user your invoking the/any read has necessary permission?
..i'm pretty confident in my guess, check if said user is part of the video group

woddfellow2 03-19-2013 03:13 AM

No, I am in the video and audio groups.


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