[ltp] USB not responding after sleep w/acpi

[Brad Langhorst]

On Sat, 2005-07-30 at 14:57 -0400, John Sullivan wrote:
> When I wake my X40 back up from acpi sleep, the USB ports stop responding. The
> devices that are plugged in no longer work, and the kernel does not produce any
> messages when devices are unplugged or plugged.
> 
> I've tried restarting the hotplug services (I'm using Debian unstable), but
> that doesn't change anything. Removing the loaded USB modules and then
> modprobing them all again also doesn't seem to change anything. Of course if I
> reboot, everything's normal again.
> 
> I'm using a 2.6.10 kernel. 
> 
> I've had similar problems before, but usually restarting the hotplug services
> brought the ports back to life. Any suggestions for how to address this? Is
> there something I can do before putting the laptop to sleep that will help stop
> this from happening?

try removing uhci_hcd and ehci_hcd from the kernel (rmmod) before suspending...

maybe that will help.

I cam able to suespend/resume fine on  a t40

brad