[Solved] No sound on Acer and proof that How solutions < how & why Solutions

[Socratea]

Hi Everyone,

Today I liberated my third PC from the clutches of windows (vista this time.. oh the horror).

Its an Acer Extensa 5220. The sound was however not working.
 I found I quick solution to this online. This is what I did:

Configure your computer ->
hardware -> browse and configure ->
soundcard -> set current driver options -> model = acer

reboot and yes great that worked! Now I could just go ahead and not care but....

Why.. why did this work? What on earth did I do..Anybody interested in telling me?

[Socratea]

Oke, my mic and headphones still did not work properly and that because the above is not completely correct.
In case anybody else has this problem the correct way to fix this:

go into a terminal and use this command:

Code: [Select]

cat /proc/asound/card0/codec#* | grep Codec
Then use the information provided on the codec to match your codec your computer manufacturer on this list

Mine was Codec: Realtek ALC268 which links to "acer-dmic" for Acer laptops with digital-mic

Now go to Configure your computer ->  hardware -> browse and configure -> soundcard -> set current driver options -> model = acer-dmic

That solved all my problems.

Now a 'why' was provided to through a google search... this works because 'ALSA doesn't always identify the proper configuration'..  But that doesnt help me much so if any expert can give a short explanation I'd really appreciate it!

[jlf001]

Does this help any with the explanation?

http://www.pclinuxos.com/forum/index.php/topic,73857.0.html

Jeff