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[Satish <psatishchandra+oi@xxxxxxxxx>]

This issue was present in prior releases too. I faced it in Quantal and then Saucy too. The original bug report is here - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1082418
The reporter of that bug is no longer active to perform tests and since the bug affects me too, I was trying to provide reports/logs/etc. Although the manufacturer of both the systems is Fujitsu, my laptop model is different from the original bug reporter's and it was suggested to me that reporting a new bug would be better.

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https://bugs.launchpad.net/bugs/1273060

Title:
  [Fujitsu LIFEBOOK LH532 (UMA)] Ubuntu EFI install locks out firmware
  access

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  :~$ apt-cache policy grub-efi-amd64
  grub-efi-amd64:
    Installed: 2.00-22
    Candidate: 2.00-22

  EFI installation of Ubuntu clears out the boot entries in firmware leaving user with no option but boot Ubuntu. Pressing (F2) to enter BIOS Setup has no effect as does pressing (F12) for Boot Order.
  The only way to get back firmware access is to flash the bios using manufacturer provided utilities. Unfortunately Fujitsu doesn't provide a BIOS flash utility for Linux/Ubuntu. It is to be noted that installed Windows in EFI mode on the same system does not clear out firmware access but just adds the 'Windows Boot Loader' entry at the top of the boot sequence.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-5-generic 3.13.0-5.20 [modified: boot/vmlinuz-3.13.0-5-generic]
  ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
  Uname: Linux 3.13.0-5-generic x86_64
  ApportVersion: 2.13.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  satish     1852 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Jan 27 11:06:37 2014
  HibernationDevice: RESUME=UUID=c73dc7d0-4253-44fa-9589-d8c91c9cac13
  InstallationDate: Installed on 2014-01-26 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140124)
  MachineType: FUJITSU LIFEBOOK LH532
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-5-generic.efi.signed root=UUID=efd53305-1eac-42ba-b3f9-828b72cb5560 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-5-generic N/A
   linux-backports-modules-3.13.0-5-generic  N/A
   linux-firmware                            1.122
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/24/2012
  dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd.
  dmi.bios.version: Version 1.10
  dmi.board.name: FJNBB1E
  dmi.board.vendor: FUJITSU
  dmi.chassis.type: 10
  dmi.chassis.vendor: FUJITSU
  dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvrVersion1.10:bd05/24/2012:svnFUJITSU:pnLIFEBOOKLH532:pvr:rvnFUJITSU:rnFJNBB1E:rvr:cvnFUJITSU:ct10:cvr:
  dmi.product.name: LIFEBOOK LH532
  dmi.sys.vendor: FUJITSU

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