Arch Linux

nkw

Member

Registered: 2004-03-26

Posts: 80

Help, Sound and xawtv doesn't work after switch to udev

The KDE popup a dialog box:

Error while initializing the sound driver:
Device /dev/dsp can't be opened (Permission denied)
The sound server will continue, using the null output devide.

And xawtv shows the following message:

bash-2.05b$ This is xawtv-3.93, running on Linux/i686 (2.6.7)
can't open /dev/video0: No such file or directory
v4l-conf had some trouble, trying to continue anyway
v4l2: open /dev/video0: No such file or directory
v4l2: open /dev/video0: No such file or directory
v4l: open /dev/video0: No such file or directory
no video grabber device available

[2]+  Exit 1                  xawtv

punkrockguy318

Member

From: New Jersey

Registered: 2004-02-15

Posts: 711

Website

Re: Help, Sound and xawtv doesn't work after switch to udev

Search the forums for "udev experiance and tips" or something.  You need to reset your sound and camera permissions in /etc/udev/permissions.d/udev.permsissions.

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If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but have not love, I am nothing.   1 Corinthians 13:2

nkw

Member

Registered: 2004-03-26

Posts: 80

Re: Help, Sound and xawtv doesn't work after switch to udev

Thanks, after modify the groups from root to users  in /etc/udev/permissions.d/udev.permsissions, the sound works now. However, the xawtv still doesn't work and there is not /dev/video0. Should I modify some configuration file of v4l?

EDIT: I just created a symbolic link /dev/video0 -> /dev/v4l/video0 and it works now. Is it a good way to solve this problem?

robot5x

Member

Registered: 2004-01-26

Posts: 266

Re: Help, Sound and xawtv doesn't work after switch to udev

Or you could just do
xawtv -c /dev/v4l/video0 -C /dev/v4l/vbi0