Public bug reported:

The touchpad is not recognized.
The "psmouse.proto=bare" hotfix does not work.
The "i8042.noaux i8042.reset" does not work, even though the touchpad would 
work in PS2 compat mode (under Win7).

The FN keys are not working at all, probably due to some strange ACPI
decode errors in the syslog.

Affected models: ASUS X750LN, ASUS X750LB, ASUS P750L (all models)

Ubuntu Version:  Ubuntu 3.13.0-24.46-generic 3.13.9

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  ubuntu     3866 F.... pulseaudio
 /dev/snd/controlC0:  ubuntu     3866 F.... pulseaudio
CasperVersion: 1.340
CurrentDesktop: Unity
Date: Wed Jul 16 06:59:29 2014
LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: ASUSTeK COMPUTER INC. X750LN
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: file=/preseed/username.seed boot=casper persistent 
initrd=/casper/initrd.lz quiet splash -- debian-installer/language=de 
keyboard-configuration/layoutcode?=de
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-24-generic N/A
 linux-backports-modules-3.13.0-24-generic  N/A
 linux-firmware                             1.127
RfKill:
 0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 202
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: X750LN
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr202:bd04/01/2014:svnASUSTeKCOMPUTERINC.:pnX750LN:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX750LN:rvr1.0:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: X750LN
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty

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https://bugs.launchpad.net/bugs/1342561

Title:
  Touchpad not recognized + Fn Keys not working (ACPI errors)

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