/dev/video

Bruce Bales bbales at cox.net
Wed Jun 6 21:53:57 BST 2007


On Friday 25 May 2007 22:35, Edward Dunagin wrote:
> Hello again,
>
> On 5/25/07, Donatas G. <dgvirtual at akl.lt> wrote:
> > ketvirtadienis 24 gegužė 2007, Edward Dunagin rašė:
> > > Hello Donatas,.
> > >
> > > On 5/22/07, Donatas G. <dgvirtual at akl.lt> wrote:
> > > > antradienis 22 gegužė 2007, Edward Dunagin rašė:
> > > > > I am running ubuntustudio7.04 that I changed from Gnome to
> > > > > KDE.
> > > > >
> > > > > The /dev/video did not show up iin my /dev/ directory, but
> > > > > did show up in /dev/.static/dev   as video. I moved it to
> > > > > /dev/ and then ran xawtv.
> > > > >
> > > > > This is xawtv-3.95.dfsg.1, running on Linux/i686
> > > > > (2.6.20-15-generic) can't open /dev/video0: No such device
> > > > > v4l-conf had some trouble, trying to continue anyway
> > > > > v4l2: open /dev/video0: No such device
> > > > > v4l2: open /dev/video0: No such device
> > > > > v4l: open /dev/video0: No such device
> > > > > no video grabber device available
> > > > >
> > > > >
> > > > > I ran it both as user and sudo with the same results.
> > > > >
> > > > > Any suggestions to solve my problem?
> > > >
> > > > It is the first time I hear about moving device files. Maybe
> > > > that was a mistake?
> > > >
> > > > Could you try to create a soft link /dev/video0 that would
> > > > point to /dev/.static/deve/video (that, of course, after
> > > > rebooting your computer) and try to launch xawtv again?
> > >
> > > I did this and it did not help..So I removed xawtv and then
> > > installed it again. When I did that, it told me that it was
> > > setting up the video in /dev/.static/dev. This is ok, but I
> > > don't know how to configure xawtv so it will look there.
> >
> > In these kinds of situations a seemlink named the way xawtv
> > expects and pointing to the right location of the video device
> > should help. You could try again from a clean situation (before
> > moving, deleting, restoring files).
> >
> > You could also look at the configuration file for xawtv (if it is
> > a kde program, it should be somewhere in
> > /home/YourUserName/.kde/share/config/ directory, and called
> > xawtvrc, else - somewhere in your home directory with a dot in
> > front of it (like .xawtv) and see if there is a line you can edit
> > in there.
> >
> > Hope some of this helps.
>
> I ran this command with this reaults:
>
>  edunagin at HighNet3:~$ xawtv -c /dev/.static/dev/video0
> This is xawtv-3.95.dfsg.1, running on Linux/i686
> (2.6.20-15-lowlatency) can't open /dev/.static/dev/video0: No such
> device
> v4l-conf had some trouble, trying to continue anyway
> v4l2: open /dev/.static/dev/video0: No such device
> v4l2: open /dev/.static/dev/video0: No such device
> v4l: open /dev/.static/dev/video0: No such device
> no video grabber device available
>
>
> and to prove it:
>
> edunagin at HighNet3:~$ ls -als /dev/.static/dev/video0
> 0 crw-rw---- 1 edunagin video 81, 0 2007-05-24 10:37
> /dev/.static/dev/video0
>
> Beats me............................ed
>

This is several days late, but a month or so ago, after I rebooted, I 
no longer had /dev/video0.  I was told on the ivtv list that this 
sometimes happens after a reboot without a full power-down.  Sure 
enough, after I powered down, I had all the needed /dev/video files.
bruce



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