X still freezes

[Patrick O'Callaghan]

I thought that one of the benefits of the kernel-based mode setting and
reworked VT code in F10 was that one could still use Ctrl-Alt-<Fn> to
escape even if X froze up. I guess I must have misunderstood because I
just managed to freeze X completely (some combination of showing a flash
video and switching desktops, probably hard to reproduce) and had to
reset the machine to recover. This is with an Intel 965 video chipset.

poc