Bugzilla - Modeset - Kernel 3.4 to 3.6 upgrade no longer boots

[Steve T]

On Mon, 2012-10-29 at 16:15 +0000, Steve T wrote:
> Good afternoon,
> I have been running my laptop on various versions of FC without a
> problem and am currently on FC16 running Gnome 3 in full mode. 
> Recently the FC16 Kernel was updated from 3.4.11 to 3.6.2 and my
> laptop (Dell Latitude D610 ) would no longer boot - although I could
> go back to any  3.4 kernel and it booted ok and worked under Gnome 3.
> There were no messages on the failed 3.6.x boot - the screen just went
> blank. After a bit of delving it seemed that a similar problem had
> been reported in relation to Plymouth and modesetting. Following that
> track lead me to 'Bug 845745 - kernel version 3.5.0-2 hangs at boot
> with modesetting: "conflicting fb hw usage radeondrmfb vs VESA VGA -
> removing generic driver" ' on Fedora Bugzilla.
> I did try the 'nomodeset', and that does allow a boot under 3.6.2, but
> then Gnome 3 goes into fallback mode.
> 
> Does anyone know if this will be fixed under FC16, or is this a
> generic Kernel fix that will appear across all releases that use that
> kernel? 

Does anyone know how to get around this issue? Presumably the monitor
must have been recognised by the 3.4 kernels - does anyone know how I
can get the monitor to be recognised by the 3.6 kernels?