Bug#661696: drm/i915: wrong fifo size due to uncareful refactoring which results in an xserver crash at 800x600

[Jonathan Nieder <jrnieder@gmail.com>]

Lukas Anzinger wrote:

> looks good to me.

Do you mean that the patch looks good or that you've tried applying it
and the behavior was bad before and good afterward?

(If you haven't tested it yet, here's a quick demo.

  apt-get install git build-essential; # prerequisites

  # if you don't already have a copy of the kernel with history:
  git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

  cd linux
  # get point releases
  git remote add -f stable \
    git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git

  # test baseline.  Warning: while 2.6.32.y is maintained, 2.6.33.y isn't.
  git checkout stable/linux-2.6.32.y
  cp /boot/config-$(uname -r) .config; # current configuration
  make localmodconfig; # optional: minimize configuration
  make deb-pkg; # optionally with -j<num> for parallel build
  dpkg -i ../<name of package>
  reboot

  # hopefully it reproduces the bug.  So try the patch:
  cd linux
  git am -3sc <path to the patch>
  make deb-pkg; # maybe with -j4
  dpkg -i ../<name of package>
  reboot
)