> I have finally managed to trace the hang to inside the call of
 > xf86ExecX86int10(pInt) in
 > xsrc/xfree/xc/programs/Xserver/hw/xfree86/os-support/vbe/vbe.c
 > ...So, the problem's occuring in a real-mode BIOS call. Eek.

I've found a work-around for avoiding the BIOS call-- Option "NoINT10".

This will not be terribly useful to users with graphics hardware not
as well-supported as ATI, that need to rely on the VESA/VBE/DDC calls
to set up linear addressing, et.al.

-- 
Chris Baird,, <abuse@brushtail.apana.org.au>