Comment 25 for bug 610440

So this is the way to solve it with linux-phc Kernel:

First add ppa for linux-phc Kernel:
sudo add-apt-repository ppa:linux-phc/ppa

Update the Repositories:
sudo apt-get update

No install the headers an the kernel itself
sudo apt-get install linux-headers-generic-phc
sudo apt-get install linux-generic-phc

Reboot your System with the phc-kernel (usualy the first entry in grub)
No you need to install the patched modules for your System

Download patched modules for AMD
http://www.linux-phc.org/forum/download/file.php?id=83

or INTEL
http://www.linux-phc.org/forum/download/file.php?id=94

unpack them eg to your home directory Before we can install them we need to do some bugfix.
The utsrelease-header-file is missing on this kernel so we create it by hand
sudo nano /usr/src/linux-headers-<your-version>-generic-phc/include/linux/utsrelease.h
where linux-header-<your-version>-generic-phc has to be your installed version eg linux-headers-2.6.35-28-generic-phc
insert into this file: #define UTS_RELEASE "2.6.35.28+drm33.5" (your version of course)
and no install the modules
sudo make dmks_install
Reboot again and hopefully no more gain calibration timeout