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

Craig Huff huffcslists at gmail.com
Sat Aug 21 23:31:25 UTC 2010

Just went back through this thread after seeing the latest post.  I
have been dealing with a similar problem and thought you might benefit
from the solution I came up with.

I am still working through the travails of upgrading from Mythbuntu
9.04 to Mythbuntu 10.04 -- mostly tailoring to personal taste, like
incorporating TuxOnIce support, etherwake from FEs to wake up BE
without having to run up and down stairs to get everything going, etc.

Seems mythbackend was trying to check for video devices sometimes
before LIRC had them up completely, especially when I was resuming
from TuxOnIce-based hibernation.

My solution was to run a script at boot time that checks for the right
group assignment on the /dev/video* (checking video0 seems to be good
enough) and then throw out a "service mythtv-backend restart" to
kick-start mythbackend again.

I have found the video devices taking several seconds, even more than
a dozen, to finish getting configured.



More information about the mythtv-users mailing list