[Bug 558395] Re: vga_switcheroo sony-vaio-z-series

[Vincenzo Di Massa]

Hi I have exactly the same laptop and managed to both cards work. But
what I manage to do is just a super hack workaround, the problem is not
solved.

I downgraded grub2 to grub in order to make the intel card work: when
using grub you don't need to use the nomodeset option. This basically
makes the laptop usable as long as you are ok using the intel card.

In order to enable the nvidia card (G330M) you must:
1) set the selector to "speed" 
2) boot the old kernel vmlinuz-2.6.31-20-generic (don't ask me why, but this step is required)
3) boot a newer kernel with the nvidia binary drivers

After step 2) the green light of the selector will be lightnened.

Another couple (possibily urelated, but who knows) problems with this laptop are:
1) touchpad does not work ( setting the i8042.nopnp kernel-boot parameter fixes it *most of the times*)
2) after a suspend to ram the laptop freezes while waking up (blank screen, no ping, no keyboard leds responding)

Of course it is just a little bit more than annoying :-)

-- 
vga_switcheroo sony-vaio-z-series
https://bugs.launchpad.net/bugs/558395
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