[Bug 33214] gnome-screensaver restores default color-correction settings

[mlind]

Public bug reported:
https://launchpad.net/malone/bugs/33214

Affects: gnome-screensaver (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
I've defined custom settings for Brightness, Contrast and Gamma
using Nvidia X Server Settings (nvidia-settings) for my LCD panel.

When gnome-screensaver kicks in, it restores the settings to
monitor default(?) and never sets them back to custom when
screensaver quits.