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No sound from Ububtu 11.10 and all derivatives

 
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kenmk



Joined: Sat Sep 27, 2008 10:11 am
Posts: 6
Location: Rugby, UK

PostPosted: Wed Apr 11, 2012 4:03 pm    Post subject: No sound from Ububtu 11.10 and all derivatives Reply with quote

Sound is failing to work on any Live CD/Installation of Ubuntu 11.10 and all derivatives thereof.

It seems that the hardware detection is failing. I have an on-board sound card - Windows says AC97 from Realtec - and built-in speakers, but the only option on the Sound configuration that tries (and fails) to work is for headphones. There is another option which I think should work, but as soon as I try the Test Speakers option I am forced back to the headphone - no amplifier.

I have tried plugging in some amplified external speakers to the headphone socket - but still no sound.

The problem started after an in place update from Mint 11 to Mint 12. The mess this made was so severe that I had no sound from anything. Even a re-installation of XP had no sound until I added the original Compaq drivers!!!!!

Mint 11 is back and has sound with both on-board speakers and the external ones working.

The laptop is an old original Centrino machine from Compaq, a Presario B1800. Windows reports the sound card as a Realtec AC97 device.

How do I get recent Ubuntu releases to recognise this card properly?
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kenmk



Joined: Sat Sep 27, 2008 10:11 am
Posts: 6
Location: Rugby, UK

PostPosted: Tue Apr 17, 2012 7:43 pm    Post subject: Update Reply with quote

Since the first post I've installed the beta of Ubuntu 12.04. Something has changed, 'cos this has working sound. There must be some odd difference hidden away somewhere!!??
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lok1950
LXF regular


Joined: Tue May 31, 2005 6:31 am
Posts: 1016
Location: Ottawa

PostPosted: Tue Apr 17, 2012 9:00 pm    Post subject: Reply with quote

Likely in the kernel.

Enjoy the Choice Smile
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