sound card is not functioning in RHEL5.

amit_kalipur · 02-06-2009, 07:03 AM

Dear Everyone,
Sound card of my laptop Dell Inpiron 1525 is not working with RHEL5 while with windows xp sp2 it is functioning.
Pleas find the attachment for output of lspci,lsmod.

bathory · 02-06-2009, 08:04 AM

The output of lsmod looks correct. That means that the modules necessary for your sound card are loaded.
Did you remember to unmute the sound?
Run alsamixer from command line to unmute the various channels and increase the volume.

amit_kalipur · 02-07-2009, 04:47 AM

Quote:

Originally Posted by bathory

The output of lsmod looks correct. That means that the modules necessary for your sound card are loaded.
Did you remember to unmute the sound?
Run alsamixer from command line to unmute the various channels and increase the volume.

Thank you very much for your precious suggestion.
How this command is used?Please tell me step by step.Or simply can i run this command as:- #alsamixer Enter.

bathory · 02-07-2009, 11:02 AM

Before trying anything else follow the instructions here (C.4.8)
If you want to use alsamixer, then you should run it as root from the command line. Once you see the various channels, you use "M" to unmute them and the up=arrow to increase the volume. Exit the program (use Esc) and test. If it works, then run:

Code:

alsactl store

to save the configuration.

amit_kalipur · 02-09-2009, 02:54 AM

Quote:

Originally Posted by bathory

Before trying anything else follow the instructions here (C.4.8)
If you want to use alsamixer, then you should run it as root from the command line. Once you see the various channels, you use "M" to unmute them and the up=arrow to increase the volume. Exit the program (use Esc) and test. If it works, then run:

Code:

alsactl store

to save the configuration.

Thank you very much sir.I will try it.

Dear Sir,there is big problem with my laptop Dell Inspiron 1525.Problem is that the virtual consoles of CLI is not opening.I am using RHEL5.The DVD of RHEL5 is provided by institute that comes with linux books. I am using kernel version 2.6.18.I downloaded kernel 'linux-2.6.28.tar.bz2 and want to upgrade my kernel with this linux-2.6.28.Someone says that upgrading kernel may solve your problem.Please tell me HOW TO COMPILE CORNEL.I hope u can solve my problem.
Thanks and best regards
Amit kumar singh

bathory · 02-09-2009, 06:19 AM

The fact that the virtual consoles are not working is most likely due to a misconfiguration of your keyboard in xorg.conf. Could you post the relevant part here?

I don't think that compiling a newer kernel will solve your problem. If you insist to do so, you can find useful posts either here at LQ or by googling.

Regards

amit_kalipur · 02-09-2009, 07:19 AM

Quote:

Originally Posted by bathory

Before trying anything else follow the instructions here (C.4.8)
If you want to use alsamixer, then you should run it as root from the command line. Once you see the various channels, you use "M" to unmute them and the up=arrow to increase the volume. Exit the program (use Esc) and test. If it works, then run:

Code:

alsactl store

to save the configuration.

Thank you sir,I followed all above instructions as well as Main menu=>system setting=>sound detection but I couldn't here sound.

when I run alsamixer command as root and press 'M' headphone is off ,pressing up arrow increases numerical value of sound but i couldn't here sound.

amit_kalipur · 02-09-2009, 08:01 AM

Quote:

Originally Posted by bathory

Before trying anything else follow the instructions here (C.4.8)
If you want to use alsamixer, then you should run it as root from the command line. Once you see the various channels, you use "M" to unmute them and the up=arrow to increase the volume. Exit the program (use Esc) and test. If it works, then run:

Code:

alsactl store

to save the configuration.

Thank you sir, I followed all above instruction as well as Main Menu=>system setting=>sound detection but I couldn't here sound.

I am attaching the screenshot of alsamixer command.Pressing M switch of the headphone and pressing up arrow increases the numerical only value of sound but it doesn't make sound.

bathory · 02-09-2009, 08:41 AM

Can you hear sound from the speakers? Are these the only devices you see in alsamixer?
From the attached screenshot it seems that your headphones are still muted (see the MM at the bottom).
Press "M" until it unmutes (become green OO).

Cheers

amit_kalipur · 02-10-2009, 04:31 AM

Quote:

Originally Posted by bathory

The fact that the virtual consoles are not working is most likely due to a misconfiguration of your keyboard in xorg.conf. Could you post the relevant part here?

I don't think that compiling a newer kernel will solve your problem. If you insist to do so, you can find useful posts either here at LQ or by googling.

Regards

Dear sir,
I am not geting what relevent part means,whether it is output of any command or hardware details.Please tell me in detail.

Sir, I want to compile the kernel 2.6.18 to linux-2.6.28.Could you tell me step by step how can i do this.

bathory · 02-10-2009, 05:33 AM

Before starting compiling a new kernel, you might get the latest alsa drivers, libraries and utilities and see if it can solve your problem.
If you insist compiling a new kernel use google to find a good tutorial.
Just keep in mind that redhat does not support custom kernels

amit_kalipur · 02-10-2009, 06:16 AM

Quote:

Originally Posted by bathory

Before starting compiling a new kernel, you might get the latest alsa drivers, libraries and utilities and see if it can solve your problem.
If you insist compiling a new kernel use google to find a good tutorial.
Just keep in mind that redhat does not support custom kernels

Thank u sir .One thing more,I want to install VLC media player.Please tell me from where I can download it and how can i install it.which will be convenient RPM fiel or tar file.

bathory · 02-10-2009, 06:25 AM

It's always better use RPMs to install software. You can get vlc from here. If you are running a 64bit RHEL then use this instead.

Regards