Comment 7 for bug 135833

Sound on my Macbook Pro seemed to be working immediately after I upgraded to gutsy as of RC1.
With yesterdays kernel update sound has ceased to work:

% lspci
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)

# modprobe -v snd_hda_intel
insmod /lib/modules/2.6.22-14-generic/updates/sound/pci/hda/snd-hda-intel.ko

% dmesg | tail
[28561.040000] ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 22 (level, low) -> IRQ 21
[28561.040000] PCI: Setting latency timer of device 0000:00:1b.0 to 64
[28561.208000] hda_codec: STAC922x, Apple subsys_id=106b0200
[28562.240000] hda_intel: azx_get_response timeout, switching to polling mode: last cmd=0x011f1c00
[28562.488000] ACPI: PCI interrupt for device 0000:00:1b.0 disabled
[28562.488000] HDA Intel: probe of 0000:00:1b.0 failed with error -16