On Wed, 18 Jan 2006, Dennis Heuer wrote:

> Hello
> 
> I have a cheap HAMA keyboard with cherry internals. The board is
> connected to the root USB controller and the first and only keyboard at
> my mashine. It works ok; but when it falls asleep it doesn't wake up
> anymore. There is a wakeup-key on the keyboard but it doesn't work. I
> have to re-plug the keyboard to have it available again.
> 
> I appended the linux log for more details on my system configuration...

The information you included was the system log for the boot-up period, 
when everything was working correctly.  That really doesn't tell us much 
about what might be going wrong.

You should turn on USB verbose debugging in the kernel configuration 
(CONFIG_USB_DEBUG) and rebuild the kernel.  Then send the dmesg log 
showing what happens when the keyboard goes to sleep, fails to wake up, 
and gets replugged.

By the way, what cuases the keyboard to fall asleep?  Linux does not 
normally suspend USB keyboards.

Alan Stern



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