Ubuntu
linux-source-2.6.20 package

  1. Bug #99755
  2. Comment #2

Comment 2 for bug 99755

Revision history for this message
Michel D'HOOGE (michel-dhooge) wrote : Re: regression: Keyboard + Synaptic Touchpad randomly do not return from suspend on Dell 640m

Same problem with a Dell 630m.

I have the feeling it is related to the use of an external USB Logitech mouse (I have another no-name mouse which doesn't seem to trigger the same bug). If the plug state of the mouse is different between before sleep and after resume, the (internal) keyboard and touchpad are not "seen".

What is even more strange is that all pressed keys are still kept in "a queue"; as soon as I managed to log-in again on the screen-saver, the keys are applied (i.e. Fn+sleep, power button, shortcuts, ...). I also noticed that after the problem occurred, the special shortcut Fn+F3 (Battery status) no longer works and there is the following message in kern.log:
atkbd.c: Use 'setkeycodes e007 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0x89 on isa0060/serio0).

If I close the cover of the laptop, wait until it goes into sleep mode and then open it again, keyboard is back.