Comment 4 for bug 711501

Just acquired an ASUS EEE 1015PEM-MU17 last week and ran into the suspend problem as you have.
After following several different solutions, it seems a dash / underscore typo is the culprit behind the suspension freeze.

Following Ivan Teliatnikov's comment at http://www.ubuntugeek.com/fix-for-suspend-and-hibernation-problem-for-laptops.html,
here is a solution you can try that worked for my 1015PEM:

From Terminal, create the 00sleep_module file:
sudo gedit /etc/pm/config.d/00sleep_module

From GEdit, add to line 1:
SUSPEND_MODULES="xhci_hcd"

Save.

Choose Suspend from Power off Menu.

Your comp should power down, with only the power switch and power indicator blue leds flashing periodically.
Seems to wake up normally.

Hope it works for you.