launch the livecd
use F6 for other options
use ESC to get rid of the menu which just popped up
but now you have a long line of boot parameters there at the end after "--" leave a blank and add "nomodeset"
nomodeset switches the new kernel feature off which configures the mode settings of the graphichip.
now you can boot it - just hit enter
this "nomodeset" needs to be turned on permanently after installation. so just stay in the livecd and mount your harddrive and edit /media/UID-XXXXXX/boot/grub/grub.cfg via a terminal (Application -> Accessoires -> Terminal)
$ gksudo gedit /media/UID-XXXXXX/boot/grub/grub.cfg
here you need to change the following menu entry by adding "nomodeset" - see the line starting with "linux"
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd0,1)
search --no-floppy --fs-uuid --set 5c7c29e4-f877-4e6d-8b20-aed6eacd5ad3
linux /boot/vmlinuz-2.6.31-14-generic root=UUID=5c7c29e4-f877-4e6d-8b20-aed6eacd5ad3 ro nomodeset quiet splash nomodeset
initrd /boot/initrd.img-2.6.31-14-generic
}
now reboot. we are almost there !!!
after rebooting the system, we again open the terminal and edit the grub default
$ gksudo gedit /etc/default/grub
here there a two changes which added the "nomodeset":
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"
GRUB_CMDLINE_LINUX="nomodeset"
after saving the changes execute
$ sudo update-grub
so that is what I have done to get it working. there is still a strange thing that I can not see the grub menu when starting the laptop also the when there is a filesystem check the laptop stays black for very long time. so not perfect but otherwise I am very pleased with ubuntu on that laptop.
I found a bugreport where the fix goes via the configuration of the xserver by turning off KMS (kernel mode setting). https://bugs.launchpad.net/ubuntu/+s...el/+bug/474421
but the good thing is that the bug was confirmed - let's see when there will be an update.
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