Comment 59 for bug 292256

guys, edit the file of pm-utils
/usr/lib/pm-utils/defaults

maximi89@Maximiliano:/usr/share/emesene$ cat /usr/lib/pm-utils/defaults
##########################################################
# DO NOT EDIT THIS FILE! #
# #
# Add files in /etc/pm/config.d/ instead! #
##########################################################

# Default method to power down the system when hibernating.
# If commented out, the system will use the kernel default as a
# default value.
#
# Check /sys/power/disk for valid values. The default value
# will be surrounded by [square brackets].
HIBERNATE_MODE="shutdown"

# Whether we need to post the video card when resuming from
# hibernate. You should not normally need to set this.
# In the future pm-utils will get this setting from HAL.
#
# Valid values are "no" and "yes"
# HIBERNATE_RESUME_POST_VIDEO="no"

# The default sleep/wake system to use. Valid values are:
# kernel The built-in kernel suspend/resume support.
# Use this if nothing else is supported on your system.
# uswsusp If your system has support for the userspace
# suspend programs (s2ram/s2disk/s2both), then use this.
# tuxonice If your system has support for tuxonice, use this.
#
# The system defaults to "kernel" if this is commented out.
SLEEP_MODULE="uswsusp"

# These variables will be handled specially when we load files in
# /etc/pm/config.d.
# Multiple declarations of these environment variables will result in
# their contents being concatenated instead of being overwritten.

# If you need to unload any modules to suspend/resume, add them here.
SUSPEND_MODULES="nvidia ehci_hcd ohci_hcd uhci_hcd iwl3945"

# If you want to keep hooks from running, add their names here.
# HOOK_BLACKLIST=""

# If you want to unconditionally add parameters to the commandline,
# add them here.
# ADD_PARAMETERS=""

# If you want to ignore commandline parameters, add them here.
# DROP_PARAMETERS=""

# If you need to synchronize the system clock across a suspend/resume or
# hibernate/thaw cycle, set this variable.
# NEED_CLOCK_SYNC="true"

i get the same as you, the suspend mode hangs my computer, but editing this file i get working all again...