Restarting alsa-utils or reloading snd-hda-intel did not work for me.
sudo /sbin/alsa force-reload after resuming from suspend got the sound
back.
This is on Kubuntu 8.04 on an Acer Aspire 4720. Relevant lines from
lspci -v:
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio
Controller (rev 03)
Subsystem: Acer Incorporated [ALI] Unknown device 011d
Flags: bus master, fast devsel, latency 0, IRQ 22
Memory at f0500000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0
Enable-
Capabilities: [70] Express Unknown type IRQ 0
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[hardy] After suspsend sound isnt working anymore
https://bugs.launchpad.net/bugs/198218
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