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Old 06-15-2004, 02:51 PM   #1
LQ Newbie
Registered: Jun 2004
Location: St Catherine's Ontario
Distribution: Slackware 9.1
Posts: 1

Rep: Reputation: 0
sound permissions for users, Slack 9.1

I run Slack 9.1, and all was well until I tried an unsuccessful upgrade of KDE from 3.1 to 3.2.3.
Now if I log in as root I can use /usr/bin/aplay to play a file, but as a user I get :
user@shetland:~$ aplay /home/user/test.wav
ALSA lib pcm_hw.c:1055:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed: Permission denied
aplay: main:484: audio open error: Permission denied
Have read about needing a group called "audio", I do not have one listed in /etc/group,
do I need one? (I assume that I never needed one before I broke it)
Trying to understand which files/directories I need to give "user" R/W/X permission for?
I have also run alsaconf after the "upgrade" to no apparent effect
all help appreciated.
Old 06-15-2004, 03:04 PM   #2
Registered: Oct 2003
Distribution: Debian Unstable
Posts: 41

Rep: Reputation: 15
OK, what I believe you are going to need to do is update permissions on the following files:




so, a command like the following might work well:

chmod a+wx /dev/dsp* /dev/snd* /dev/mixer*

Hope your sound problems are cleared up!
Old 06-15-2004, 03:14 PM   #3
Registered: Jul 2003
Location: Louisiana, US
Distribution: Slackware
Posts: 129

Rep: Reputation: 15
dont forget /dev/audio for some people


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