Lost sound and video input - kubuntu 7.10

[Colin Pinkney]

On Thursday 10 Jan 2008, Bruce Bales wrote:
> On Thursday 10 January 2008 14:40:53 Colin Pinkney wrote:
> > groups=4(adm),20(dialout),24(cdrom),25(floppy),29(audio),30(dip),44(video
> >), 46
> > (plugdev),100(users),104(scanner),112(netdev),113(lpadmin),115(powerdev),
> >11 8 (admin)
> >
> > You need to be in the audio and video groups for all these audio/video
> > applications to work and if they're missing when you enter the 'id'
> > command then this is your problem.
> >
> > To correct it at the command line you can type a series of commands like
> > this (assuming 'bruce' is your actual username):
> >
> > sudo adduser bruce audio
> > sudo adduser bruce video
> > ...
> >
> > Alternatively you can open the System Settings in KDE and click User
> > Management, switch to Administrator Mode (bottom right) and modify your
> > user account to include these groups as secondary groups.
>
> Yes, that did it.  Thank you very much.  I have been using linux for almost
> nine years, exclusively for seven years and I have never heard of secondary
> groups.  I'll bet that ntp hasn't been working for the same reason.
>
> Is there any danger in adding myself to any group that looks likely
> in /etc/group ?  I see mysql, geneweb, admin, saned.  Would there be a list
> somewhere?
> bruce

/etc/group is the complete list of user groups on your system AFAIK and also 
stored who belongs to which. However, you should use 'adduser' or the User 
Management screen in System Settings to modify which groups you are in.

If you make your groups list match the ones I listed above (plus the group 
with the same name as your username) then everything on your system should in 
theory work ok.

-- 
Colin Pinkney
http://www.cpinkney.org.uk