Chris Snook escreveu:
Juan Carlos Castro y Castro wrote:
When I log in from the text consoles or the native GUI (but not by
ssh) the pemissions and owner in /dev/snd are changed to 0600 and the
logged-in user, respectively. I can't find where, or in what script,
this is done. I'd like to disable that behavior and leave all
permissions in /dev/snd to 0666, without them being changed behind my
back when someone logs in. How can I do this?
This happens in Fedora 8. I imagine earlier Fedoras do that too.
ConsoleKit is the app that changes permissions behind your back when
people log in on a physical console. Of course, if you disable it
then you'll probably be stuck with the 0600 permissions, which you can
then fix with a udev rule.
Personally, I just completely remove pulseaudio from my system and
enjoy working sound. I've long since given up on filing bug reports.
-- Chris
OK, now it got weird. I see the permissions in /dev/snd don't actually
change - they're permanently at 0660, owner root:root - and yet I can
play sound from a ssh session as a common user. But not from a VNC server.
Then I appended ",MODE=0660" in the device lines at
/etc/udev/rules.d/40-alsa.rules, rebooted, went in by ssh, changed
runlevels with "init 3", stopped ConsoleKit and now I can't play sound,
even as the users that could in the previous try. Moreover, ls -l
/dev/snd shows my udev modifications were solemny ignored.
Restarted ConsoleKit - still no sound from ssh.
Went back to runlevel 5 - still no sound from ssh.
Rebooted, didn't change runlevels neither stopped any service - still no
sound from ssh.
Clearly, something happened before the first reboot. It wasn't logging
in and out of the GUI, I tried that too. OK, I'll ignore that and act as
if it never worked.
By the way, I had already removed the alsa-plugins-pulseaudio RPM long ago.
Now I'm trying change the initlevel to 3 in inittab, disabling the GUI
related services (ConsoleKit, NetworkManager, avahi-daemon, haldaemon,
messagebus) only for that runlevel, and rebooting. Now I go by ssh --
still no go, aplay doesn't work and the device nodes are still 660. What
the netherworld?
Needless to say, if I manually run "chmod 666 /dev/snd/*" everything
works. Sigh. If you ask me, there seems to be too much mumbo jumbo
happening behind the scenes. Annoying.
Ah, and there's more: the same thing happens in CentOS 5, which has no
ConsoleKit.
