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Archive for December 21st, 2007

When I turn my laptop this afternoon, I suddenly lost my sound and got this ugly red cross beside my speaker.

volumewithredsign.png
When I double click the icon, I got this message.
screenshot-mixer_applet2.png

Then I open System > Preferences > Sound ……I lost my sound device.
I can’t run ‘alsamixer’ from the terminal, then I did log off and reboot the system …..
nothing to make the sound work.
The last thing I did was I regularly update my system using:
taufanlubis@toshiba:~$ sudo apt-get update
taufanlubis@toshiba:~$ sudo apt-get upgrade
taufanlubis@toshiba:~$ sudo apt-get dist-upgrade

It’s normal daily routine that I do every day and I always use the ‘main server’ for my repository, so I’m very sure that it didn’t cause the problem.

When I googled, I found a solution in here. This blog belongs to Kamil.
http://linux.dsplabs.com.au/no-volume-control-gstreamer-plugins-and-or-devices-found-no-sound-or-voume-control-bug-on-ubuntu-p31/

He mentioned that it could probably a a Gnome bug and is most likely distribution independent. I agree that it may caused by independent distribution. When you install something using Sypnatic Package Manager, any programs that have been tested by Ubuntu Team and compatible with it has a Ubuntu logo beside the package title.

sypnatic.png

 

Because, there’s so many applications that I’ve run in my laptop.

But, who cares….. If you wanna try a new thing then you have to be ready with consequences.

 

The point is how we can fix the problem. So, here it is.

Problem 1. I don’t have any more access to my audio.

taufanlubis@toshiba:~$ ls -l /dev/snd
total 0
crw——- 1 root audio 116, 3 2007-12-20 12:51 seq
crw——- 1 root audio 116, 2 2007-12-20 12:51 timer

taufanlubis@toshiba:~$

If you see the list in my /dev/snd directory, the access is only for root. Then I gave a new access to me (taufanlubis).

taufanlubis@toshiba:~$ sudo chmod -R a+rwx /dev/snd

for temporary access. But, I got a new error message.

nosound.png

Then I try to make it permanent.

taufanlubis@toshiba:~$ sudo adduser taufanlubis audio

The user `taufanlubis’ is already a member of `audio’.

 

Strange, now I’m part of the groups but I still can’t hear the sound.

I though it’s caused by Gstreamer plugins.

So, I did update my system again ….

taufanlubis@toshiba:~$ sudo apt-get update

taufanlubis@toshiba:~$ sudo apt-get upgrade

taufanlubis@toshiba:~$ sudo apt-get dist-upgrade

…. and restart my laptop again.

 

Problem 2. I lost my sound device.

But, still there is no sound.

Then, I just realized that I don’t have my /dev/dsp, /dev/mixer, /dev/snd/pcm* anymore.

That’s why, I can’t run alsamixer from my terminal.

 

So, re-install my sound driver. Now, I got my device back.

taufanlubis@toshiba:~$ ls -l /dev/snd
total 0
crw——- 1 root audio 116, 0 2007-12-20 19:40 controlC0
crw——- 1 root audio 116, 4 2007-12-20 19:40 hwC0D0
crw——- 1 root audio 116, 5 2007-12-20 19:40 hwC0D1
crw——- 1 root audio 116, 24 2007-12-20 19:40 pcmC0D0c
crw——- 1 root audio 116, 16 2007-12-20 19:40 pcmC0D0p
crw——- 1 root audio 116, 30 2007-12-20 19:40 pcmC0D6c
crw——- 1 root audio 116, 22 2007-12-20 19:40 pcmC0D6p
crw——- 1 root audio 116, 1 2007-12-20 19:40 seq
crw——- 1 root audio 116, 33 2007-12-20 19:40 timer

taufanlubis@toshiba:~$

 

 

taufanlubis@toshiba:~$ ls -l /dev/dsp
crw——- 1 root audio 14, 3 2007-12-20 19:40 /dev/dsp
taufanlubis@toshiba:~$ ls -l /dev/mixer
crw——- 1 root audio 14, 0 2007-12-20 19:40 /dev/mixer
taufanlubis@toshiba:~$

 

Problem 3. I lost my access to System > Administration > Users and Groups.

I don’t know how but I don’t have any access to ‘Users and Groups’ which is bad because I can’t set the permission to my user login (taufanlubis).

The only way is I have to run it as ‘root‘. So, I opened my terminal, Application > Accessories > Terminal, login as root and open ‘users-admin’ application.

Then, I updated my ‘User Privileges’ and reboot the system.

users-admin.png

I have my sound back.

Checked again the permission.

taufanlubis@toshiba:~$ ls -l /dev/snd
total 0
crw-rw—- 1 root audio 116, 0 2007-12-20 19:40 controlC0
crw-rw—- 1 root audio 116, 4 2007-12-20 19:40 hwC0D0
crw-rw—- 1 root audio 116, 5 2007-12-20 19:40 hwC0D1
crw-rw—- 1 root audio 116, 24 2007-12-20 19:40 pcmC0D0c
crw-rw—- 1 root audio 116, 16 2007-12-20 19:40 pcmC0D0p
crw-rw—- 1 root audio 116, 30 2007-12-20 19:40 pcmC0D6c
crw-rw—- 1 root audio 116, 22 2007-12-20 19:40 pcmC0D6p
crw-rw—- 1 root audio 116, 1 2007-12-20 19:40 seq
crw-rw—- 1 root audio 116, 33 2007-12-20 19:40 timer

taufanlubis@toshiba:~$ ls -l /dev/dsp
crw-rw—- 1 root audio 14, 3 2007-12-20 19:40 /dev/dsp
taufanlubis@toshiba:~$ ls -l /dev/mixer
crw-rw—- 1 root audio 14, 0 2007-12-20 19:40 /dev/mixer
taufanlubis@toshiba:~$

Everything is ok.

I have my sound icon back to normal. Test with xmms, …..done….. I can hear the sound again.

sound.png

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