I “just” did the auto-upgrade …
but after that productive work wasn’t possible anymore (the CPU peaked on every click i did).
there was only software renderer available and Compiz Fusion resulted in a white screen lockup.
This chipset i’m talking about:
root@x200:~# lspci -nn | grep VGA 00:02.0 VGA compatible controller : Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
After a while I figured out, that /boot/grub/menu.lst wasn’t updated as supposed,
so I just changed the load instruction for the kernel from 2.6.28-14-generic to 2.6.31-14-generic …
kernel /boot/vmlinuz-2.6.31-14-generic root=UUID= ... ro quiet splash initrd /boot/initrd.img-2.6.31-14-generic
Kernel 2.6.31-14-generic IS working with xserver-xorg-video-intel 2:2.9.0-1unbunt2 (karmic)
After rebooting everything was back to normal again:
- hardware rendering is active
- compiz fusion is working
- no additional CPU load.
Further information about the X-Server in combination with Intel chipsets can be found here.