Red Hat Bugzilla – Bug 23018
APM restore fails to restart USB mouse
Last modified: 2005-10-31 17:00:50 EST
I have an NEC Ready 440T laptop with two USB ports. I recently purchased a
Kensington optical mouse that works both for USB and PS/2. The system
detected it fine and reconfigured gpm and X perfectly. The only problem
is, if I suspend the laptop and then restore it, the power to the mouse
does not go back on. To use it again I must unplug the mouse and then plug
it back in. I'm using a 2.2.18 kernel I compiled with usb-uhci module for
I don't have any other USB devices so I don't know if this is a problem
between USB and APM or if it is somehow specific to mice or this one in
This glitch doesn't prevent the device from being used, it is just an
annoyance. I'm sending this to RedHat rather than the kernel list or the
APM people because I'm not sure if it has something to do with the script
APM uses to shutdown and restart devices, and if so whether or not RedHat
wrote their own script. (/etc/sysconfig/apm-scripts I believe).
I also can't tell you if this happens with Windows, I'm assuming it is a
Linux only problem. If you need any more information let me know.
I got kernel 2.4.0 and the problem is fixed. Not sure exactly what was wrong,
maybe something in the USB backport?
Anyway, works fine now.
I don't have access to USB hardware; is there a special command you
need to execute in order to restart USB devices, or should the USB
modules be unloaded and re-loaded?
does unloading and reloading the mousedev module fix this for you?
closed, no response