I used to suspend/resume my Asus V6V (Radeon Mobility X600 video card) laptop 
without problems in 2.6.15 with little problems using vbetool to resume video 
card state.
Starting from 2.6.16 resume hangs when accessing X, either by switching to X 
virtual terminal or starting X from scratch.
Trying suspend/resume from single mode with all modules unloaded doesn't 
change situation.
I tried with both custom-compiled vanilla kernel and debian unstable kernel 
without success

This is the script i use to resume/suspend:
chvt 2
vbetool dpms off
vbetool vbestate save >$statedir/vbe
cat /dev/vcsa >$statedir/vcsa
echo mem >/sys/power/state
vbetool post
vbetool vbestate restore <$statedir/vbe

-- 
Regards 
IS
Iacopo Spalletti

PGP key block: http://www.spalletti.it/pgp
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