Hi

Relatively new to slack but been plugging away at it for the last couple of weeks. Havn't had any problems with anything until I decided to put one of my games on there.

Installed Quake3 and while there were no problems with the install but then I found when I ran it there was no sound.

Looking back at the terminal it said /dev/dsp permission denied. I ran Quake3 as root and the sound worked.

So I did a chmod -R 775 /dev/dsp - think that was right - read it somewhere else. Anyway it didn't fix the problem and now I have further problem with Mplayer. Mplayer worked before I did this but now I get the following error:

ALSA lib pcm_hw.c:1055snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed: Permission denied

If I run it as root, again the sound works.

So i guess I've stuffed up permissions somewhere. :/

Can anyone help me with permissions for this stuff? Or at least put me onto the right track as to where to look. Bit lost at the moment.

It's Slackware 9.1
Sound card is an Audigy

Ta

chmod 775 /dev/snd/*

This should do it..

yeh permission problem error gone. Now I got something else.

Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
AF_pre: af format: 2 bps, 2 ch, 48000 hz, little endian signed int
AF_pre: 48000Hz 2ch Signed 16-bit (Little-Endian)
SDL: Samplerate: 48000Hz Channels: Stereo Format Signed 16-bit (Little-Endian)
SDL: using esd audio driver
SDL: Unable to open audio: No available audio device
Could not open/initialize audio device -> no sound.
Audio: no sound

Seems I've stuffed a few things up. :/

Tried opening alsamixer

alsamixer: function snd_ctl_open failed for default: Permission denied

If I try and run xmms i get:

** WARNING **: oss_open(): Failed to open audio device (/dev/dsp): Permission denied


No idea what I've done. Everything works if I run it as root.

Maybe you should chmod everything to 777 (/dev/dsp /dev/mixer /dev/snd/* )

SDL: using esd audio driver

Since you're using alsa, esd is not likely even installed. Is there a way to change what sound system that Quake uses? You may want to find a Quake forum about that one if its not too clear. I may be wrong about this, but I do know that I fixed the same problem with xmms by changing from oss to alsa

Hi, at work so I can't try it at the moment.

In your the quake config you can specify the sound device. Although I'm not too sure which device I should be specifying. Obviously I'm using ALSA but what would I call that? Is it simply /dev/snd/alsa?

For XMMS where do I change that? Wierd thing is, all this was working until I installed Quake3 and changed the permission on /dev/dsp (chmod -R 775) - Read somewhere on another forum that this was a fix. Anyway it didn't fix anything. Just stuffed everything else up further.

Awsome, that fixed it.

I guess that just gave r w x to everything on my computer eh? Love to know how I stuffed it up in the first place. :P

But thanks.

I think the proper procedure would be to make some yourself part of the 'sys' group. Then you would be able to play music, while your brother (or any other evil creature) can't blow up your speakers.

Just edit /etc/group.

I had the same problem all of a sudden. Stumbled upon this thread. I added my username to audio in "/etc/group". And the sound is restored!

Thank you.