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kenmk
Joined: Sat Sep 27, 2008 10:11 am
Posts: 6
Location: Rugby, UK
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 Posted: Wed Apr 11, 2012 4:03 pm Post subject: No sound from Ububtu 11.10 and all derivatives |
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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
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| Posted: Tue Apr 17, 2012 7:43 pm Post subject: Update |
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| 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: 959
Location: Ottawa
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| Posted: Tue Apr 17, 2012 9:00 pm Post subject: |
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Likely in the kernel.
Enjoy the Choice  |
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