from X to terminal needs an fflush

hi all

Ive been trying to solve a problem which is happening to me but so far no 
success.
problem is this:

sometimes happens, sometimes doesnt, but once im on X and do a "F2", "F3" 
whatever in order to get back to terminal, it *does* get back to terminal but 
the screen still shows like i was on X, therefore i have to do a F* twice in 
order to see the console , like an fflush was missing somewhere.

im using the drm-devel-kmod git for i915kms.ko btw

any ideas what could it be?

thank you guys

--tzk