Computer screen will not wake up with notifications present

When logged into my accounts, such as Facebook and Google and when I have notifications present, specifically messages in Empathy, my computer screen will not wake up if the computer is locked. The screen itself notices the mouse movements and wakes up, but what I mean is that the screen stays a dark blank color. I can't get any response from the computer once this happens, and I have to force a reboot every time this happens.

Please fix, I have more information if needed :)

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: gdm 3.8.4-0ubuntu2
ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
Uname: Linux 3.11.0-13-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Thu Nov 14 12:15:11 2013
InstallationDate: Installed on 2013-11-10 (4 days ago)
InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Release amd64 (20131017)
MarkForUpload: True
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gdm
UpgradeStatus: No upgrade log present (probably fresh install)