[Bug 1508203] [NEW] Grub freezes with external usb devices connected

[Aaron Staley]

Public bug reported:

If any external input device (mouse/keyboard) is plugged into my
computer during boot, grub fails to start (laptop freezes at logo
display)

If device plugged in while using grub, grub immediately freezes

External devices work fine once booted into linux 3.19.0.28.

Note that booting into Linux 3.19.0.30 (my latest kernel) has problems
described at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507868

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: grub (not installed)
ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
Uname: Linux 3.19.0-28-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.5
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Oct 20 14:01:15 2015
InstallationDate: Installed on 2014-03-16 (583 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
SourcePackage: grub
UpgradeStatus: Upgraded to vivid on 2015-07-19 (93 days ago)

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


** Tags: amd64 apport-bug vivid

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https://bugs.launchpad.net/bugs/1508203

Title:
  Grub freezes with external usb devices connected

Status in grub package in Ubuntu:
  New

Bug description:
  If any external input device (mouse/keyboard) is plugged into my
  computer during boot, grub fails to start (laptop freezes at logo
  display)

  If device plugged in while using grub, grub immediately freezes

  External devices work fine once booted into linux 3.19.0.28.

  Note that booting into Linux 3.19.0.30 (my latest kernel) has problems
  described at
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507868

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: grub (not installed)
  ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
  Uname: Linux 3.19.0-28-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.5
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Tue Oct 20 14:01:15 2015
  InstallationDate: Installed on 2014-03-16 (583 days ago)
  InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  SourcePackage: grub
  UpgradeStatus: Upgraded to vivid on 2015-07-19 (93 days ago)

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