Public bug reported:

I experienced some problems after my Upgrade from Jaunty to Karmic on my
laptop.

Right after the upgrade, my computer rebooted and launched the kernel 
2.6.31-15-generic with no problems.
But I could not use my keyboard at the gdm login screen.

So I rebooted and used the kernel 2.6.28-16-generic kernel, and the
keyboard worked (but others things did not, maybe due to the use of an
old kernel with Karmic).

After that I trier to restart with the kernel 2.6.31-15-generic, but during the 
kernel boot process, it hangs.
So I tried to set acpi to off, and then it booted and I could use my keyboard, 
but not my USB mouse.

This problem is quite annoying, because I cannot use Ubuntu correctly no
more

The problems occurs on my acer travelmate laptop.
I am using 2 other computers with Karmic and those does not have this problem

** Affects: ubuntu
     Importance: Undecided
         Status: New


** Tags: acer acpi kernel keyboard

** Tags added: keyboard

-- 
Problems with kernel acpi driver in Karmic
https://bugs.launchpad.net/bugs/490251
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