ubuntu-x-swat team mailing list archive

[Paul Stevens <pstevens80@xxxxxxxxx>]

This problem seems to be based in Kernel Mode Select and the hardware
involved. Bug report 288807 talks about some hardware issues with Sony
laptops and that may be in effect here. I believe KMS is now on by
default in Karmic for Intel devices.

To get the system fixed was fairly simple in the end and only requires
updating Grub to turn off KMS. I am using Grub2 on this install.

On a live cd boot, use F6 to edit grub. 
Remove “splash” and replace with “nomodeset”. 
I included “--xdriver=intel” on my system as bootup seemed smoother with this added.
Splash does not work with nomodeset so it needs to be removed.

On an installed system, edit /etc/default/grub to remove splash and add
the ‘nomodeset xdriver=intel” line and then update grub.

gksu gedit /etc/default/grub

Change the line:
GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash”

To this:
GRUB_CMDLINE_LINUX_DEFAULT=” nomodeset xdriver=intel”

The “quiet” option may work but I did not use it. The “xdriver=intel”
was correct for my system.

Then run:
Sudo update-grub

Note, I did not need to have any xorg.conf in the system to get it
working. There did not seem to be any difference whether it was there or
not.

It might be good to have a fallback “nomodeset” option as a standard
part of the grub menu till KMS can develop a way to deal with this
hardware.

-- 
Screen resolution not correct
https://bugs.launchpad.net/bugs/459547
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