Created attachment 72129 [details]
lspci output

hello everybody,

following advice from dri-devel list I am opening a bug report here.

Starting with kernel-3.7 I am not able to boot any more in KMS: as
soon as the screen resolution changes in the very early stage of the
boot, the machine freezes and the only option I'm left with is to
press a physical reset button.

I am on an athlon64 dual core machine and using DRM/NOUVEAU with a
NVIDIA GeForce 6200 LE GPU

Here are some facts:

=> while kernel-3.7.x gives the problems mentioned above,
   kernel-3.6.{8-10} boots just fine (and X11 works nicely)
=> if it can be of any use: if I reboot from a running 3.6.x kernel
   into a 3.7.x, the obtained freezed console screen shows the (somewhat
   misplaced) lines which were printed during the shutdown phase of
   the reboot process (this is similar to what reported in Description
   of bug#46557)
=> kernel-3.7.x boots just fine on another box (another athlon64 dual core with
   a GeForce 6150SE nForce 430 (rev a2) GPU); kernel is 32bit there,
   if it can matter

I am attaching lspci output, kernel config and dmesg output w/
NOUVEAU_DEBUG_DEFAULT=6

I will be happy to send in any other information which might be useful

thank you very much  in advance

ciao
gabriele