It has physical selector of GPUs which Linux kernel does not detect. The sony-vaio-z-series Linux community is doing a great job at keeping up with the hardware nuisances.
Thanks to Adam and Sony Vaio Z group, in launchpad, for this kernel! Asus U/UL series and Acer Timeline models are also doing well: Yep, it worked for me too! Some time ago I've patched my bios and set video card switching policy to manual.
If you have a Nvidia graphics card, this may be the issue with it. With this it enter to Ubuntu but only command-line =(( I tried change with "Alt+F2, etc." and all are without X mode ^^ I think is better boot with Intel GPU because it has less problems with compatibility, but I don't know how.
Go to the line which says 'quiet and splash', delete these words and type in "nomodeset" (without quotes) Now press Ctrl + X to boot Now login to your Ubuntu as usual.
I have ubuntu 10.10 and I get the black screen after load grub, I can enter on tty console and nomodeset but I dont know how install the linux headers, image and others!!! Press e on getting the GRUB bootloader(if not getting grub, press and hold shift key to get grub).
Any way when I find so patch which improve Sony Vaio Z performance I going to post here. Im not an expert using ubuntu and Im trying solve the same problem on my VAIO VPCZ1, I dont understand the correct way to do this, could you help me with this please?
=)) Update (20): I tried update to Ubuntu 11.04 on my VPCZ11C5E and all work (without any patch) fine less Intel GPU (only works Nvidia).
Sony Vaio series Z 2010, I installed Kubuntu 10.10 with the nomodeset option to be able to see the installing graphical interface, then copied the Adams 2.6.37_amd64 linux image and headers, installed it with dpkg and it worked! However, I cannot figure out which graphic card is running. That way I got my nvidia card working with proprietary drivers and 'nomodeset' setting in grub. I got installed patched 2.6.37 kernel and almost succeed.
What I've got is: both video cards working (intel and nvidia). Actually laptop suspends properly, but on keypress it performs fresh boot.
Nvidia card is working with Nuoveau drivers (a bit slower than with original drivers). Now I'm back to unpatched kernel on Ubuntu 10.10 Maverick.