10.10 - Getting vga_switcheroo with ATI Mobility Radeon 5650 HD to work

I have a new HP dv7 laptop with ATI Mobility Radeon HD 5650 graphics card, and also Intel graphics (switchable). I have done the following and want to understand what is going on with my graphics driver

1. Resized windows 7 and did fresh install of 10.10


2. Booted into 10.10 and things seemed to be working okay


3. Enabled ATI graphics, and was clearly working on the ATI rather than Intel GPU (desktop cube worked)


4. Rebooted, got an error that modprobe could not load modules.dep, and also something about i915 symbols


5. Rebooted into recovery mode, modified xorg.conf to remove the mention of fglrx


6. Rebooted, and the errors show, but then x starts but clearly in intel graphics

I would ideally like to be able to switch between the ATI and Intel graphics, a la vga_switcheroo. My first problem seems to be that the folder

/sys/kernel/debug/vgaswitcheroo

does not exist, hinting at some kind of kernel issue. What can I do to get this available?

Thanks!

I think that I found the solution, we are on the same page, please look this comment:

Found the problem. As mentioned in
other sites, vga_switcheroo will
magically disappear if you have the
proprietary Radeon driver installed.
This driver is called fglrx. So if
Synaptic shows that you have fglrx on
your machine, uninstall it and reboot
- et voila, vga_switcheroo returns.

This might help!

cheers!