Just tried and for once they work.- Randomly the pedals work or not at all. Best if you send me the terminal commands to execute on Ubuntu 14.04 or I'll try tomorrow or so again.
What I do is taken from here:
http://forums.x-plane.org/index.php?showtopic=71300&page=6


#!/bin/bash
cd /dev/input
sudo setfacl --modify u:michael:rw- --modify g::rw- --modify o::rw- *
cd ~/X-Plane_10
sudo mount -o loop /media/michael/DATA/img/xplane10.iso /media/michael/XPLANE10
./X-Plane-x86_64

Thanks




________________________________
 From: Martin Pitt <email address hidden>
To: <email address hidden> 
Sent: Monday, August 4, 2014 4:31 PM
Subject: [Bug 1332444] Re: CH Pedals are not working in 14.04
 

What does "not working" mean? Your game doesn't have permissions to
access the pedals? Or they don't send the correct events, etc? (The
latter would be a kernel bug, not udev rules).

In a situation when they are not working, can you please find the
correct /dev/input/eventNN device for the pedals (e. g. from /dev/input
/by-id/) and then the output of "getfacl /dev/input/eventNN"?

Thanks!

** Changed in: systemd (Ubuntu)
       Status: New => Incomplete

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report.
https://bugs.launchpad.net/bugs/1332444

Title:
  CH Pedals are not working in 14.04

Status in “systemd” package in Ubuntu:
  Incomplete

Bug description:
  I've created a rule in lib/udev/rules.d as 99-xplane.rules:
  # CH PRO PEDALS USB
  KERNEL=="event*", ATTRS{idProduct}=="00f2", ATTRS{idVendor}=="068e", MODE="0666"

  and even do at every x-plane start:
  cd /dev/input
  sudo setfacl --modify u:michael:rw- --modify g::rw- --modify o::rw- *

  but still my CH Pedals are often not working. (sometimes yes but not
  always)

  
  ------
  michael@michael-ubuntu:~$ lsb_release -rd
  Description:    Ubuntu 14.04 LTS
  Release:    14.04
  michael@michael-ubuntu:~$ 

  ----
  michael@michael-ubuntu:~$ apt-cache policy udev
  udev:
    Installed: 204-5ubuntu20.2
    Candidate: 204-5ubuntu20.2
    Version table:
   *** 204-5ubuntu20.2 0
          500 http://ch.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       204-5ubuntu20 0
          500 http://ch.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
  michael@michael-ubuntu:~$ 

  I expect my CH pedals to work out of the box like on Windows.
  But even with the above they only work sometimes.-

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: udev 204-5ubuntu20.2
  ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
  Uname: Linux 3.13.0-29-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Jun 20 09:46:31 2014
  InstallationDate: Installed on 2014-04-19 (61 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: ASUS All Series
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic.efi.signed root=UUID=2c43c000-7e14-4304-9dd6-e10fe2810f92 ro
  SourcePackage: systemd
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/19/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1405
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: Z87-PRO
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1405:bd08/19/2013:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ87-PRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: All Series
  dmi.product.version: System Version
  dmi.sys.vendor: ASUS

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