Comment 57 for bug 644644

Can confirm this bug on two machines with fresh installs of Ubuntu 10.10, one with Desktop Edition, one with Netbook Edition.

Asus 1005HA, Intel HDA audio:
   00:1b.0 Audio Device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)

Asus P5Q Pro system, Envy24 / VIA ICE:
   07:01.0 Multimedia audio controller: VIA Technologies Inc. ICE1712 [Envy24] PCI Multi-Channel I/O Controller (rev 02)

As a few of the later comments are suggesting that it is audio driver related, I hope this helps. The drivers I am using are simply whatever Ubuntu defaults to using for these devices. On the ICE1712 chip there's a completely unrelated bug which means one cannot access the analogue outputs which required me to reconfigure Pulseaudio a little, THIS bug (644644) was present before the modification.

I'm happy to supply more information if requested as I have two fairly fresh systems here on which to test.

Regards,
Niall.