[mythtv-users] Permission problem on /dev/video 0-3

MacNean Tyrrell dardack at gmail.com
Thu Jul 29 02:34:35 UTC 2010

Ok so my fathers mythtv box running .23, 2  days ago was running fine.
 Tonite he calls me and says mythtv isn't recording.  I go up, information
says recorders has an error.  I look in the mythtvbackend log, i see:

Channel(/dev/video0)::Open(): Can't open video device, error "Permission
Channel(/dev/video1)::Open(): Can't open video device, error "Permission
Channel(/dev/video2)::Open(): Can't open video device, error "Permission
Channel(/dev/video3)::Open(): Can't open video device, error "Permission

I did some searching and say and error with pvr150's and a udev fixing it.
 However, both of his are pvr500's.  I did try that fix but it didn't work.
 The weird thing is, once X is loaded, if I ssh in and run:

sudo service mythtv-backend restart

Everything works fine.

He hasn't done updates (he doesn't without me) in those 2 days.

The permisions on /dev/video0-3 is
crw-rw----- root video

where video has mythtv/hisusername as part of the group.

The udev rules made it:
crw-rw-rw- root video

But again non of this fixes mythbackend running correctly on bootup.  I have
to VNC/SSH in and restart the backend, but once I do it works fine.

So if anyone could shed some light on this for me that would be great.  I do
have autobuilds for mythbuntu enabled, I believe he's running 25368.  Please
help me out here.

MacNean C. Tyrrell
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mythtv.org/pipermail/mythtv-users/attachments/20100728/d4082778/attachment.htm>

More information about the mythtv-users mailing list