Bug#689268: Intel HD 4000 (Ivy Bridge) graphics freeze

[Per Foreby <per@foreby.se>]

New freeze after a few hours (vanilla kernel, 64 MB GPU Memory).

Next thing to try is to blacklist the i915 module, but it doesn't seem 
to work. This is what I did:

  # echo "blacklist i915" > /etc/modprobe.d/i915-blacklist.conf
  # depmod -ae -F /boot/System.map-3.2.0-3-amd64
  # update-initramfs -u -k all

Module still loads. Tried adding modprobe.blacklist=i915 to the kernel 
command line, but still no success.

What am I doing wrong here?

/Pre