Public bug reported:

These are 3 bugs that are occurring on my Dell Inspiron n5110 notebook
which I believe are related to each other somehow.

Just to make it clear I'm currently running Ubuntu 12.04 from an USB
live session.

1st) I can't switch monitor output mode using default shortcut keys
Fn+F1. Switching them through Displays option available on System
Settings work as expected though.

2nd) Shortcut keys for enabling and disabling touchpad (Fn+F3) are
actually working but there's this little led light on my notebook that
indicates when touchpad is disabled. It works on Windows 7 when I hit
those keys they will turn on the little orange led light upon disabling
the touchpad, however I have not yet tested this behavior on another
linux distro, or any other Windows version for that matter.

3rd) HDMI will always mess up with LightDM display resolution when I
boot Ubuntu with HDMI cable connected. Resolution is fine when I boot
Ubuntu without HDMI cable connected. However when HDMI cable is
connected to the port LightDM will output a "squared" resolution which
is no good neither on laptop's main display nor on my widescreen TV.
Actually Ubuntu just outputs a mirrored setup for both monitors.

Thank you in advance.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.10.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
CasperVersion: 1.315
CompizPlugins: 
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
Date: Wed May  9 18:58:03 2012
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubuntu
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/997286

Title:
  Dell's Inspiron n5110 touchpad activity led + Fn+F1 (display switch
  shortcut) not working on 12.04 precise

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