Brightness Control Issue On A Dell Latitude D820

[Jordyn Carattini]

I Don't Know If I Am Reporting This Bug To The Right Package.
But I Have A Dell Latitude D820, And I Can't Control The Brightness.
It Stay's At 100% Brightness.
The Only Way To Control It Is TO Reboot Into The BIOS Setup And Change It There.
I Have Ubuntu 15.04, on A i686.
Also I Have A CRON Job TO Backup And Compress The System Logs in /var/log

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1
Uname: Linux 3.19.0-22-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: i386
CurrentDesktop: XFCE
Date: Fri Jul 24 16:37:57 2015
InstallationDate: Installed on 2015-07-16 (8 days ago)
InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release i386 (20150422.1)
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)

[Jordyn Carattini (onlinecloud1)]

Backup Of My /var/log Directory

[penalvch (penalvch)]

Jordyn Carattini, please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1478148

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]