I too am having this problem (crackling noise from speaker as it reboots/shutsdown) running Lucid on an HP Pavilion DV6.
uname -a Linux rblenis-laptop 2.6.32-24-generic #41-Ubuntu SMP Thu Aug 19 01:38:40 UTC 2010 x86_64 GNU/Linux
lspci | grep udio 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
any other info I can provide to help?
I too am having this problem (crackling noise from speaker as it reboots/shutsdown) running Lucid on an HP Pavilion DV6.
uname -a
Linux rblenis-laptop 2.6.32-24-generic #41-Ubuntu SMP Thu Aug 19 01:38:40 UTC 2010 x86_64 GNU/Linux
lspci | grep udio
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
any other info I can provide to help?