Comment 413 for bug 359392

One question:
Is it equivalent to specify a Virtual Size of 2048 2048 in xorg.conf to use the patched xserver-xorg-video-intel?
I have a Dell Inspiron 1525 with GM965 X3100 Intel card and Kubuntu Jaunty amd64
I also have the latest repository available mesa* and libgl* packages
I use the following xorg.conf configuration and apparently fixes the freeze (previously, my desktop freezes after 20, before using Alt SysRq K K):

Section "Screen"
  Identifier "Default Screen"
  Monitor "Configured Monitor"
  Device "Configured Video Device"
  SubSection "Display"
   Virtual 2048 2048
  EndSubSection
EndSection

I also use the EXA and Greedy options.
Thanks;