Public bug reported:

Binary package hint: linux-image-2.6.17-10-generic

I have an IBM ThinkPad T42.  I've been running Ubuntu on it from day
one.  I upgraded to Edgy couple of weeks before it was released, then
didn't have any problems with suspending.

This Monday I bought a bigger hard disk and make a fresh Edgy install.
Sometimes it fails to resume.  The little moon icon keeps flashing, the
Bluetooth icon lights up, the keyboard is dead (no magic SysRq), the
network is dead, the screen is dead.  I have to hold down the Power
button for a while to turn it off.

This happened about four times this week.  Once I was asking for it -- I
was running beryl to see whether https://launchpad.net/bugs/80318 is
gone in my fresh installation.  That used to break resume in my old
system, but in a different way.  However I've had three more resume
failures without using any 3D on the machine.

I still have the old disk available in a USB enclosure, so I could
compare the configuration if I knew where to look.

Some hardware details that may be relevant:  I have an evil ATI Radeon
video card (Mobility M6 aka 7500).  I use the open-source radeon driver.
I also load radeonfb with this line added to /etc/modules:

     radeonfb force_sleep=1

to partially combat another problem (excessive battery drain during S3
sleep).  I had this in my old install as well.

There are some differences in /etc/default/acpi-support.  In my old
system I had commented out the SAVE_VBE_STATE=true and POST_VIDEO=true
lines.  (And also LOCK_SCREEN=true and ENABLE_LAPTOP_MODE=false, but
those do not seem to be relevant.)

I used the same kernel in both installs.

** Affects: linux-source-2.6.17 (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

-- 
Laptop sometimes fails to resume from ACPI S3 suspend
https://launchpad.net/bugs/81722

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