Kernel wont load proper drivers for AMD A4/Radeon APU.

[Carlos García]

I just bought a SAMSUNG NPV305 with a AMD A4 APU with a ATI Radeon HD 6480G integrated into the proccesor. Installing Ubuntu 11.10 was very difficult, normal Live CD would only turn off the screen, and nthing can be done. Tried the alternate install, but when install was full, everything got same results, screen was turned off. Tried the Fn/Alt+F4 with no results, but I discovered video worked with the HDMI video out, but Ubiquity would not be very useful on 640x480. Couldn´t change resolution. Still, I somehow managed to finish the install at low resolution, only to find LightDM would just restart everytime I wanted to login. However, Guest session worked. I finally managed to install fglrx driver via GeTTY, and after a reboot my screen worked at its native resolution (1366x768). Things I can´t fix are 1024x768 resolution on GeTTYs and on boot process, (I usually disable plymouth splash).
I am using Ubuntu 11.10 Oneiric 64-bit. Kernel >3.0

(I tried #! to see if kernel ~2.6 worked, and video outputed but at wrong resolution.)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[gcb (gcb0)]

same problem here. thinkpad edge e425. It has switchable video cards, and i'm not sure how... i can enable one or another exclusively via the bios, but what i see on lspci is all the same.

could not install using the regular CD (why there's no text installer?).

i didn't knew about the HDMI out working. but i would rather a text installer anyway.

after installing debian-sid i have the following information:

fgrlx does not work. vesa works obviously w/out direct rendering.

catalyst driver that support that board does not support the newer X available in debian-sid at this time. i will hunt down the versions and update here... now since i will have to compile modules for pretty much all the hardware i have on this box i'm waiting for gentoo to compile some 2Gb of software... :-/