TV displays no signal have turning off then back on.

[Mike O'Driscoll]

$lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04 LTS
Release: 14.04
Codename: trusty

apt-cache policy xorg
xorg:
  Installed: 1:7.7+1ubuntu8
  Candidate: 1:7.7+1ubuntu8
  Version table:
 *** 1:7.7+1ubuntu8 0

-System connected to TV via HDMI.
-Turn off TV.
-Turn on TV.
-TV has no signal
-change to tty1, displays login prompt
-change to tty7, shows black screen.
-Must restart lightdm to get a desktop environment to display again.

Expected that when turning on TV that desktop is shown without issue.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
NonfreeKernelModules: wl nvidia
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat May 3 21:18:41 2014
InstallationDate: Installed on 2014-01-18 (105 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to trusty on 2014-04-28 (5 days ago)