[Bug 50160] Removing MP3 player causes USB and shutdown failiures

Andy101 me.stranded at gmail.com
Sat Oct 14 08:11:58 UTC 2006

Public bug reported:

When I remove my MP3 player it causes my USB keyboard to fail (i.e. keys
ignored) and causes my USB wifi to stop working aswell. Oddly my
keyboard is wireless attached using a USB reciever, this reciever is
also used by my mouse but the mouse continues to function.

Also after removing my MP3 player, during the next system shutdown,
instead of displaying the graphical shutdown screen listing what it is
doing the screen goes blank and the system fails to shutdown.

My PC's power button performs a normal shutdown if pushed, t only forces
a power off if its held down. After the screen goes blank if I push the
button and wiat it appears to perform a shutdown procedure, although the
screen goes blank the hard drive light flickers intermittantly and the
system then powers off.

My MP3 player is a Samsung YP-U1 (

Steps to reproduce:
1. Insert MP3 player, wait for gnome to recognize it and load it.
(should see the MP3 player).

2. Right click the icon and choose unmount.
Everything should be working at this point.

3. Now remove the device.
My keyboard fails at this point and my USB wifi adapter also fails.
The only other USB device I have connected is the printer, which I haven't tested, and the mouse, which spookily still works despite using the same reciever the keyboard does.

If you need me to provide any more info tell me what commands I need to
run. Note that as my keyboard stops working I can't actually type
anything so the command is going to need to be run ahead of time (i.e.
prior to removing)

I have tried using Ctrl-Alt-Backspace to make X restart, nothing happens (no restart, nothing to indicate the command was even recieved).
Ctrl-Alt-F1 to switch to a console also does nothing.

Any help much appreciated, rebooting my machine everytime I use my MP3
player is time consuming.

Incase it matters it worked fine in Breezy, but then it wasn't
recognized as an MP3 player it was treated as an USB disk, like a memory

** Affects: linux-source-2.6.12 (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

Removing MP3 player causes USB and shutdown failiures

More information about the kernel-bugs mailing list