[Bug 1082654] Re: Boot menu completely broken if external usb keyboard used (touch it and you won't be able to boot)

[matteo sisti sette]

@Phillip unfortunately I won't be able to try the CD any soon since my
CD/DVD drive is broken :(

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Title:
  Boot menu completely broken if external usb keyboard used (touch it
  and you won't be able to boot)

Status in “grub2” package in Ubuntu:
  Incomplete

Bug description:
  I have a laptop, and I often use it with an external USB keyboard and
  an external screen connected.

  Recently II observe the following issue (maybe it's been there before,
  but I usually didn't need to change the boot selection so I never
  triggered it):

  -- REPRODUCES THE ISSUE --
  - turn on the laptop with the USB keyboard already connected
  - touch the up or down arrow key on the external keyboard to pick a boot option

  => the system goes berserk and stops responding correctly to both the
  external and builtin keyboard. It looks like some key got stuck,
  permanently pressed. The cursor will move all the way down or all the
  way up but you can't choose an item. Also, I hear noise from the
  speakers (like pulses). Disconnecting the USB keyboard won't fix the
  issue. I have to switch off the computer

  
  -- DOESN'T REPRODUCE THE ISSUE --
  - turn on the laptop with or without the USB keyboard connected (it's ok to have it connected as far as you don't touch it)
  - never touch the external keyboard
  - use the built in keyboard to navigate in the boot menu.

  => boot menu works fine and I can boot.

  
  If this was a hardware issue, it would show up even after boot. Instead, once I have booted correctly, I can use the external keyboard without any issue.

  So it must be some software issue in the linux loader or something

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-34-generic 3.2.0-34.53
  ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33
  Uname: Linux 3.2.0-34-generic i686
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu15
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  teo        2539 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfebf8000 irq 49'
     Mixer name	: 'Realtek ALC660-VD'
     Components	: 'HDA:10ec0660,10430000,00100001 HDA:10573055,10431316,00100700'
     Controls      : 28
     Simple ctrls  : 16
  Date: Sat Nov 24 14:12:51 2012
  HibernationDevice: RESUME=UUID=b1b3e5fe-38e2-44c9-9e48-4564cd9f4d66
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  MachineType: ASUSTeK Computer Inc. M51Sn
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-34-generic root=UUID=173acbf5-26a0-49e3-8d2b-f1c142582cbf ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-34-generic N/A
   linux-backports-modules-3.2.0-34-generic  N/A
   linux-firmware                            1.79.1
  SourcePackage: linux
  StagingDrivers: zram
  UpgradeStatus: Upgraded to precise on 2012-05-17 (190 days ago)
  UserAsoundrc:
   pcm.!default { type pulse }
   ctl.!default { type pulse }
   pcm.pulse { type pulse }
   ctl.pulse { type pulse }
  dmi.bios.date: 12/24/2007
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 303
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: M51Sn
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr303:bd12/24/2007:svnASUSTeKComputerInc.:pnM51Sn:pvr1.0:rvnASUSTeKComputerInc.:rnM51Sn:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: M51Sn
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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