Comment 10 for bug 158050

with a laptop model : Lenovo 3000 C200 8922AZG
$uname -a
Linux NEANT 2.6.22-14-generic #1 SMP Tue Feb 12 07:42:25 UTC 2008 i686 GNU/Linux

I tri to fix my suspend-hibernate / resume problems under Gutsy, because I was ok under Feisty, so it should be possible ?!!....

Using gnome-power-manager sleep button but the laptop doesn't enter in sleep mode : I'get blank screen (with backlight) and the cursor in the upper left corner.
I can restore my session, by first switching to tty (ctrl+Alt+F1) and then switching back to gnome session (ctrl+Alt+F7) : the password is asked and everything is ok (but it hasn't sleeped at all..)

Using "pm_suspend" or "/etc/acpi/sleep.sh force" the laptop enter in sleep mode : the half moon is on, everything seems to shut down. But no way to resume, I am obliged to hard reboot....

Hibernation doesnt work better : hard reboot...

With the hardy live CD, suspend to ram doesn't work neither.

Using the "pm_trace" procedure the following lines appear in dmesg :

[ 17.727817] Magic number: 0:432:626
[ 17.727820] hash matches /build/buildd/linux-source-2.6.22-2.6.22/drivers/base/power/resume.c:28
[ 17.727986] hash matches device 0000:00:1b.0

This device correspond to my sound (/modem ?) chipset :
$ find /sys/bus/pci/drivers/ -name "0000:00:1b.0"
/sys/bus/pci/drivers/HDA Intel/0000:00:1b.0
$ grep Codec /proc/asound/card0/codec#*
/proc/asound/card0/codec#0:Codec: Realtek ALC861-VD
/proc/asound/card0/codec#1:Codec: Generic 11c1 Si3054
$ lspci -vvnn
00:1b.0 Audio device [0403]: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller [8086:27d8] (rev 02)
 Subsystem: Lenovo Lenovo 3000 C200 audio [Realtek ALC861VD] [17aa:3802]
 ....see attachment below

I tried to modify the /etc/default/acpi-support config file, by adding all the sound related modules in the MODULES="" section, unsuccessfully...

I also replace the "i810" module by the default "intel" module (sudo dpkg-reconfigure -phigh xserver-xorg) of my graphic chipset,
and I test disabling the vbe option of xorg.conf, unsuccessfully...

I tri pm-suspend (with various quirck), and /etc/acpi/sleep.sh force (is it the same thing, which one use the acpi-support option ?)

Remark : the answer to "pm-is-supported --suspend" ans "pm-is-supported --hibernate" is 0, is it normal ?

So as you may deduce, I need someboddy's help to see what to do...
I think it's more probably a kernel bug ( than a g-p-m or acpi ralted bug), but I'm not an expert...

thank you !