openSUSE 13.2 install, graphical artifacts

Hello all, last night tried to install openSUSE 13.2 RC1, with an EFI bootable USB..

This is what happened:

Grub error with EFI: http://youtu.be/sso6bugRpUI

Quick explanation:

When i try to boot openSUSE (or any other linux distro) with kernel 3.14 or newer and the open source video drivers, using Grub2-EFI, i always get a corrupted screen (with artifacts or divided screen)..
If i switch to rEFInd, and enable GOP, openSUSE boots correctly..

This also happens with any kernel, but using the propetary drivers.. Of course, not happening with rEFInd..

The apparent cause:

In EFI mode, my laptop needs GOP graphical mode, that is not available on Grub..
In rEFInd you need to uncomment a line to enable GOP..
Using a legacy (non EFI) install, the system boots correctly with Grub..



I filled a bug report on Grub:
http://savannah.gnu.org/bugs/?42051
But nothing happened..


I saw the same issue in other forums, with other distros, but the same laptop..

Toshiba Satellite L845
Intel Core i7 3632qm
AMD 7670m

Thanks