Comment 16 for bug 81767

Same for me. It seems clear that i8042 as a module is the solution and unloading/reloading this and psmouse on suspend/resume is necessary. This clearly needs changing in the releases though.
The question now I believe is whether the screen is turned off and you have to press the brightness buttons to get it back on after resume. I do not have this symptom, but others have. But is it only because the screen has been turned off by screensaver/power management? Plugging in a usb keyboard and mouse to resume without needing the built in keyboard and touchpad will test this.