Sound permission problem [SOLVED]

Message

nyk · Post by **nyk** » Tue Aug 02, 2005 8:49 am

After a kernel update, I have to do "chmod 777 /dev/sound/*" each time after boot for the sound to work. Is something wrong with my settings, or should I just put the chmod in a startup script?

vega · Post by **vega** » Tue Aug 02, 2005 4:56 pm

Try adding your user to the audio group.

nyk · Post by **nyk** » Fri Aug 05, 2005 12:23 pm

Good idea, I try this! Hope it's gonna be better the next reboot...

MacGoerk · Post by **MacGoerk** » Fri Aug 05, 2005 4:05 pm

AFAIK group memberships are updated the next time you log-in.
a simple logout of all consoles ( plus X11 ) and a login should solve this.

right? ^^

vega · Post by **vega** » Fri Aug 05, 2005 5:06 pm

MacGoerk wrote:AFAIK group memberships are updated the next time you log-in.
a simple logout of all consoles ( plus X11 ) and a login should solve this.

right? ^^

Yes, you don't need to reboot. Just logout and login again.

Nyk, please, add [SOLVED] to your first post subject if this solved your problem, ok?
Let's try to keep this forum organized.

ElCondor · Post by **ElCondor** » Tue Aug 23, 2005 7:42 am

After every reboot the permissions in /dev/sound/ are 600 ! Users are in audio group, sound itself works fine, just the permissions are set way too restricted after every reboot!
I also tried RC_DEVICE_TARBALL="yes" in /etc/conf.d/rc - but still permissions keep changing!

Also all audio devices in /etc/udev/permissions.d/50-udev.permissions are set to 0660 !

Does anyone know how to solve this??

* ElCondor (silently) pasa *

jspeybro · Post by **jspeybro** » Tue Aug 23, 2005 12:31 pm

I had the same problem. There seems to have been an update in config files that didn't catch everyone.

look at the code in this post: http://forums.gentoo.org/viewtopic-p-25 ... ml#2571449.
check if you have this line:

Code: Select all

SUBSYSTEM="sound", GROUP="audio"

in /etc/udev/rules.d/50-udev.rules.
I didn't have that. When I added it, all problems were solved.

Oh, and it seems /etc/udev/permissions.d/50-udev.permissions is not being read anymore (read it somewhere on the forum). I have no idea why it is still there. It just confuses many people.

Any udev techie around to explain?

Johan

vega · Post by **vega** » Tue Aug 23, 2005 1:38 pm

ElCondor wrote:Also all audio devices in /etc/udev/permissions.d/50-udev.permissions are set to 0660 !

In fact, my settings are like yours also. It seems that this is for security reasons, so that only users in the "audio" group will have access to the devices. My sound system works very well with those settings.

I've Done some testing and think jspeybro is right, it seems that /etc/udev/permissions.d/50-udev.permissions are not being read.

Anyway, if you still have problems, try updating or re-emerging udev and run etc-update.

nyk · Post by **nyk** » Wed Aug 24, 2005 11:53 am

I've been in hollydays two weeks, but now finally I did on the occasion of an other kernel update (2.6.12-gentoo-r9) a reboot. And sound works right away, without changing permissions. So adding my user to the audio group was probably enough for my problem.

ElCondor · Post by **ElCondor** » Wed Aug 24, 2005 4:49 pm

Okay, I got it. I had to edit /etc/security/console.perms and set

Code: Select all

<console>  0660 <sound>      0660 root.audio

I don't know why. Usually when a user logs in in X all permissions are set correctly. I checked on other systems I have, everywhere else permissions on /dev/sound/ are set to 660 correctly. However, now it works .. finally, I'm too old to feel that I have to understand everything

* ElCondor pasa *

statmobile · Post by **statmobile** » Mon Aug 29, 2005 1:02 am

ElCondor,

This is a great tip for when I want to run music over ssh, because I'm too lazy to move from my laptop to my desktop.

Now my laptop is a $1000 remote control, I love it!!!

Thanks!

Sound permission problem [SOLVED]

Sound permission problem [SOLVED]

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