TUTORIAL - No sound FIX for Mint 7

[Gotenks]

Please do the following before continuing to troubleshoot sound issues with Mint 7
All links and solutions here were tested and work.

No sound
Open terminal run updates then reboot as needed:

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mintupdate

Increase main (hidden) volume:

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alsamixer

Arrow-Up keyboard and watch the volume level go up. Even though the volume icon in system tray is up and media player volume is up this setting must be checked.
Issue resolved!

If still no sound at all continue reading to update sound

Intermittent/Still no sound

ALSA
Skip down to OSS guide if your sound card is Intel.
ALSA provides support for the older OSS API, providing compatibility for most OSS programs, so it will not break anything to prefer this over OSS
Taken from constantly updated instructions. Thanks to soundcheck from ubuntuforums
By running this upgrade there'll be a great chance that you get your soundcard up and running or problems resolved.
This script is not in line with Debian/Ubuntu rules for package handling. It just overwrites existing files. ALSA package-id does not change within Synaptic!

Installing the latest official stable ALSA release:
Download script here and save it somewhere

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cd <your-download-dir>
tar xvf AlsaUpgrade-1.0.x-rev-1.17.tar

Use -c which test compiles and will not install. If error displays do not continue!

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sudo ./AlsaUpgrade-1.0.x-rev-1.17.sh -c

-di downloads and installs
In the worst case scenario the -r restore option restores your old system status as good as possible. It'll reinstall kernel, kernel-headers and Alsa related packages.

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sudo ./AlsaUpgrade-1.0.x-rev-1.17.sh -di

Reboot, you will now also hear sound at boot splash screen

OSS - for Intel sound cards
Intel ICH OSS guide by Husse is the standard solution and will get most users up and running. If Intel ICH OSS guide somehow fails use the following guide from Kaye next: Patching OSS into the kernel

***Thanks to Kaye & Husse for sharing OSS solutions and ikey for sharing with the community

[Husse]

Welcome to the forum
Interesting first post
I think this solves it in Gnome too, but it should be the last resort
There is always what I call the standard method for Intel HDA for which I have this standard answer:
----------
You have Intel HDA sound
and it is very probable that the standard solution for all kinds of problems with HDA works
You change model to what ever you have or auto or some more exotic model like in this topic
You may have to try many different "models" to get it to work - brand or model ...
Note the link to a post in the Ubuntu forums for a list of "models"
----------------
It will be changed to have a link to this page

[Gotenks]

Thank you muchly!
Renamed the tut to remove 'KDE' from topic title.
Just re-did the OSS section and sharpened everything for a better to-the-point guide. What will be linking to this page? nothing found yet ^_^

[Husse]

What will be linking to this page?

My standard answer for HDA sound now has a link here at the bottom

[Neo139]

I came here from Google and it didn't fix my problem but I already found a solution so I will add it here:
If your sound worked and suddenly stop working do:

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# /sbin/alsa reload


It will probably tell you the name of the process that are currently using the audio and it can't restart.
Kill those process and execute the command again.
that worked for me ^^