Hello and welcome to the site!
Yup, you have a driver that is causing inconsistent power states, which is responsible for your issues.
1) Uninstall your old Portrait Displays software to remove this very old, problematic driver:
PdiPorts PdiPorts.sys Thu Nov 16 19:31:16 2006
2) Visit your laptop manufacturer's website for your model to download and install the latest Intel Matrix Storage Manager driver to update this old one:
iaStor iaStor.sys Wed Feb 11 20:24:30 2009
3) Install this Microsoft patch to update this other driver related:
http://support.microsoft.com/hotfix/...018&kbln=en-us
iaStorV iaStorV.sys Wed Apr 08 12:57:17 2009
---------
Enjoy the laptop!