[Bug 486283] [NEW] mouse and keyboard unresponsive during Update Manager update of grup etc. after using USB switch

[chrisharrington]

Public bug reported:

Binary package hint: grub2

This is probably a hardware issue but I will report just the same.

I used the update manager to update a list of packages shortly after a
fresh install of KarmicKoala from CD. I did not look very closely at the
list and clicked "Install Updates". After this started, I used a USB
hub/monitor switch to switch my monitor, mouse, and keyboard to my
Windows 7 machine to do some work. When I switched back to Ubuntu
several minutes later the screen saver had kicked in and the mouse and
keyboard were unresponsive. I have been switching back and forth daily
since the install two days ago with no problems (the machine responds to
mouse/keyboard events after switching back, clearing the screen saver).
Hitting the power button cleared the screen saver and allowed me to see
that both the Update Manager and console were paused while updating grub
because a separate grub update window required user interaction.
Unplugging keyboard/mouse and plugging back in had no effect (still no
response). Other OS responsive though when USB hub/switch is set to it.
Hitting the power button again threw up the power down menu and the
machine shut down after 60 seconds normally, though obviously without
finishing the grub update. Machine booted normally but with the
"detected crash" notice on the upper right (and subsequently this page).
However, running Update Manager again tells me that the system is up to
date while I know that grub should have failed, along with anything
which might have come after it.

Perhaps one of the updates issued a restart to the usb drivers which
then found no external devices when I was on the other machine?

ProblemType: Package
Architecture: i386
Date: Sat Nov 21 22:20:21 2009
DistroRelease: Ubuntu 9.10
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
Package: grub-pc 1.97~beta4-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic-pae
SourcePackage: grub2
Title: package grub-pc 1.97~beta4-1ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
Uname: Linux 2.6.31-14-generic-pae i686

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-package i386

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mouse and keyboard unresponsive during Update Manager update of grup etc. after using USB switch
https://bugs.launchpad.net/bugs/486283
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