Unable to wake screen using magic mouse or trackpad after installing magic mouse

Question

Dear Everyone,
I am using mbp 15 inch early 2011 with 2 GHZ intel i7 processor and a  4gb ram. I would like to tell you that i have installed the mac os x lion and quite happy with the improvement. however, there are same changes which i am not sure whether it is that my mac that causeing theproblem or the bug from the lion itself. i am unable to wake my mbp screen using my magic mouse or trackpad after installing lion. i believe that my mbp has not really enter sleep mode as i dont see the sleep indicator at the bottom right corner flickering. i also believe that it is only the screen that goes to sleep while the hard disk is not. Normally a single swing  of the magic mouse or a single swipe of the trackpad will normally wake the screen. in order to wake the screen now is only to click on the magic mouse or trackpad. furthermore, scrolliing page using magic mouse also become unusual after installing the lion. does any of u happen to come across these problems as well? Is there any other way to downgrade to snow leopard back? (i ask this in case that this issue really cannot be fixed). Please help me on this issue. Thank you very much for taking your time to read and reply this thread.
Moonbasher (henry)

Answer 1

First, Lion does not wake on mouse or trackpad movement, only clicks or keyboard presses.  This is presumably to avoid waking the computer from display or full sleep accidentally, and is just how Lion works.  It's going to take some getting used to, personally, but I've noticed my mac hasn't woken up on it's own.  Apparently moving about my apartment moves the mouse enough that Snow Leopard used to wake the iMac.  This is not a glitch, and unfortunately, a downgrade is a complicated matter, involving erasing the HD entirely, and restoring from a backup created in Snow Leopard and not used with Lion at all, or manually importing important bits of data, as libraries upgraded by new versions of Mail, iCal, etc will not be compatible with the old versions.
In terms of your mouse scrolling, describe it in a bit more detail; Lion introduces "natural" scrolling, where instead of the mouse wheel moving the "window" over the contents, it moves the contents through the window, like scrolling on an iPhone or iPad.  In other words, think of your finger on the mouse as pressing on the page you're looking at and dragging it upward through the field of view.  I remember long ago thinking my very first scrolling mouse was backwards, and then adjusting to "down is down, up is up".  If this is the behavior you're experiencing, this also is the way Lion works.  This, however, can be changed in the mouse or trackpad preference pane in system preferences.  Simply deselect "natural" scrolling.
In a more general sense, its usually not a good idea to do a major software upgrade on your primary machine unless you're willing to deal with some zero-day glitches.  It sounds like the issues you're having aren't actually glitches, and you should be happy for that, but in the future, you might want to wait a few weeks for other users with more experience with major OS launches to find those bugs and point them out to the community for Apple to fix.  In terms of an OS launch, I think this has been absolutely one of the best.  I'm seeing very few major glitches resulting in lost data, few things that would really destroy my personal workflows, and compatiblity issues with other products seems to be well documented or negligible.  It's also a bit hasty to assume that mere hours after launch Apple would have any ability to fix ACTUAL problems with the OS.  My recommendation would be to get used to the change; having to click the mouse at least means you'll never accidentally wake your machine bumping against your desk.