Comment 7 for bug 633596

I can confirm this regression from Lucid. Only the VESA driver now works. The VESA driver is reliable, but obviously limited in fetures.

I find that the boot process hangs completely with a kernel crash when the radeon driver is loaded in the default configuration. My work-around is to boot using the nomodeset option into a command line and then remove radeon.ko from the modules tree.

This allows the system to boot, but nothing I have tried will activate the Intel driver/card combination, and vgaswitcheroo does not seem to recognise the two cards (there is no entry under /sys/kernel/debug ). Starting X delivers a blank screen. I can make the text screen re-appear only by pushing the power-off button to force a reboot.

This machine has few options in the BIOS settings, so it is not possible to force one or other graphics adapter to be active on boot-up.

I thought that this machine was the intended target for Ubuntu multitouch support, so it is strange that it does not work at all!

A