On Tuesday 27 Nov 2012 17:18:43 design [depois das dez] wrote:
> Fellow Gentooers,
> 
> although I am very happy running a Gentoo box, sometimes I bump into some
> difficulties, esp. when updating packages. This time I am having a hard
> time reconfiguring my video card, which was fine but is not anymore after
> the last system update I've made. Gnome session goes up as usual but the
> resolution is not fine and monitor complains about not being in the
> recommended mode.
> 
> My video driver is an ATI Radeon 9600 (RV350) and somebody has already
> updated the section on the Gentoo wiki
> http://en.gentoo-wiki.com/wiki/Radeon#Kernels_.3E.3D3.0.0 informing that
> there might be incompatibilities concerning the RV350 firmware. I just
> don't have enough understanding of the video related parts of the system to
> tweak and fix this issue. How should I proceed when I have a problem of
> this sort?
> 
> How do I know what is the video backend in my system? Is Xorg the only one
> possible? What can I do to fix this problem?

The link you provided says that you should disable framebuffer in your kernel 
config.  Have you tried that?

-- 
Regards,
Mick