Hi there,
I am on an Thinkpad R31 and no sound after hibernation / resume. See attached 
lspci -vv. Im running the latest updates of today and kernel generic 2.6.24-18 
and module snd-intel8x0.

The solution with restarting alsa-utils or "alsa force-reload" works,
but only __after__ I logged into the session. Restarting alsa-utils
however does not force to shutdown associated programs like the sound-
applet ;)

Putting this into the "/etc/acpi/resume.sh" (or other relevant files
during resume) has NO effect (!!! very strange !!!).

When the machine suspends, I hear a knocking sound when the sound shuts
down. Same on resume. I hear the same knocking sound when I manually do
a "force-reload" of alsa. But only a reload of alsa after logging in has
success getting sound working.

I searched and found according bug #151111 (HP Laptops),  bug #11149  and bug 
#223742 (Serval Performance - fixed with module options snd-hda-intel 
model=toshiba).
But description for the fix of the bugs is neither not applicable for thinkpads 
nor valid (links are dead for released fixes).

After hours of searching about hardy and hibernation I found out, that
ubuntu hardy uses pm-utils for this purpose which relevant directories
are "/usr/lib/pm-utils/sleep.d" and "/etc/pm-utils/sleep.d".

So I put a file called "80alsa" into "/etc/pm-utils/sleep.d" (see
attachment) reloading alsa-utils and now (at almost 2 o'clock) my sound
worked after resume ;)

This leads me into some general questions:
1. Why do the acpi helper script do not work like expected? Are they used 
anyhow?
2. Has "/etc/default/acpi-support" any effect?
3. Would not be a global solution reloading alsa-utils better, than fixing each 
driver with an alsa-base module option?

Hope this helped. Good night.

** Attachment added: "lspci-vv.txt"
   http://launchpadlibrarian.net/15222451/lspci-vv.txt

-- 
[hardy] After suspsend sound isnt working anymore
https://bugs.launchpad.net/bugs/198218
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