Sony Vaio Z11 Kubuntu with Nvidia card working

Reposting from the sony-vaio-z-series Launchpad Linux mailing list:
[Sony-vaio-z-series] VPCZ1190X Speed mode install working! (So far)

Following thunderbee's recent invaluable guide, I was able to get
Kubuntu 10.4 installed on the VPCZ1190X.

As expected, I have to boot an older kernel each time to get the speed
switch set, and I used the xorg.conf file at the end of the document
(works great!)

A couple points of note (quite obvious to most linux users, but still
useful toward the intended goal of creating a guide for the 'new' linux
user:

for the commands:
wget -nd <a rel="nofollow" href="http://kernel.ubuntu.com/%7Ekernel-ppa/mainline/v2.6.34-lucid">http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.34-lucid</a>
/linux-image-2.6.34-020634-generic_2.6.34-020634_i386.deb
wget -nd <a rel="nofollow" href="http://kernel.ubuntu.com/%7Ekernel-ppa/mainline/v2.6.34-lucid">http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.34-lucid</a>
/linux-headers-2.6.34-020634_2.6.34-020634_all.deb
wget -nd <a rel="nofollow" href="http://kernel.ubuntu.com/%7Ekernel-ppa/mainline/v2.6.34-lucid">http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.34-lucid</a>
/linux-headers-2.6.34-020634-generic_2.6.34-020634_i386.deb
dpkg -i linux-image-2.6.34-020634-generic_2.6.34-020634_i386.deb linux-
headers-2.6.34-020634_2.6.34-020634_all.deb linux-
headers-2.6.34-020634-generic_2.6.34-020634_i386.deb

in the guide, replace all instances of 'i386' with your processor
architecture ('amd64' for mine, and I think most new Z series laptops,
or any 64 bit processor)

if you are sshing into the computer to install Kubuntu as recommended,
remember that you'll have to login as the main system account (not root
like in the recovery console), and use 'sudo' before most commands.
Remember to either make a strong password or disable ssh password
authentication after you're done installing Kubuntu and have a GUI.

if you need to copy/paste the xorg.conf file from the guide (i.e. you
don't have one from a previous install), you'll also need to get a
commandline text editor - vim works:
copy file text, then in terminal (minus the 's)
'sudo apt-get install vim'
'sudo vim /etc/X11/xorg.conf'
'i' #enter text insert mode
#(paste text)
'esc' #back to command mode
':wq' #save and quit

I now have Kubuntu working fine with the nVidia card!