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The problem can/could be, that you didn't know if your Mac was asleep or just in screen-off mode but still awake, so pressing a key might or might not have sent a keystroke or mouse click to whichever window was open.

It doesn't matter if the computer is fully asleep or just the display is asleep- pressing a key once will only wake it up and will not register in any application.
 
Behaviour should be different if the Mac is asleep or just the screen. If the screen just timed out and went to sleep then moving the mouse to wake it makes perfect sense. If it's really asleep then pressing a key is fine but they are two different scenarios currently handled in the same way, and that's the problem for me. I always used space to wake the Mac from sleep anyway from habit with previous machines. However no other machine has ever required a key to be pressed if it's just the screen that's off.
 
Behaviour should be different if the Mac is asleep or just the screen. If the screen just timed out and went to sleep then moving the mouse to wake it makes perfect sense. If it's really asleep then pressing a key is fine but they are two different scenarios currently handled in the same way, and that's the problem for me. I always used space to wake the Mac from sleep anyway from habit with previous machines. However no other machine has ever required a key to be pressed if it's just the screen that's off.

Agreed, don't like that its the same for both scenarios. Should be an option.
 
I've had to click the mouse or press the space bar since snow leopard and its the same in lion.
 
I've had to click the mouse or press the space bar since snow leopard and its the same in lion.

I could move the Mouse on both my Desktop and MacBook Pro in Snow Leopard, but that changed on both in Lion when I upgrade this last week, so not sure why it worked that way for you. There's plenty of other threads, blog posts and articles saying this is a Lion change as well.

Edit: BTW, I am talking about waking from monitors going off, not sleep. Sleep was always a key-press and is best that way for sure.
 
I got so used to just moving my mouse to wake up my MBP. I now just hit one of the cursor keys to wake it up. Guess it's another "feature" change to get used to now.

A checkbox or other option to turn it back on would be nice.
 
The reason it has changed is because some of the the screensavers (hover the mouse over different album covers in the music screensaver) are interactive in Lion. So you need to be able to move the mouse without waking up the screen.
 
I got so used to just moving my mouse to wake up my MBP. I now just hit one of the cursor keys to wake it up. Guess it's another "feature" change to get used to now.

A checkbox or other option to turn it back on would be nice.

+1

if the screen is in sleep mode then moving mouse should wake up the display.

I want to go back like what it is used to be SL.
 
I've noticed on the trackpad if it just went to sleep, clicking it will wake it up. But if it's been asleep for awhile(never actually timed it), I would need to press a key on the keyboard. BTW: I'm talking about actual sleep, not the just screen cuting out.
 
Knee jerk Reaction By Apple as usual

Thank you APPLE Programmers for THINKING!!!!!!

Being able to distinguish between Computer-sleep and display-sleep is needed.

Now being smart about changing a feature that has been in use for nearly 20ys would have been nice. Like having the toggle.

Another option to fix this would have been to simply detect when the mouse is moved back and forth quickly (shaken) to wake the screen rather then a one direction movement. This would prevent the accidental wake ups.

But there you go. Apple once again being unable to think out side the apple and do something elegant!
 
Thank you APPLE Programmers for THINKING!!!!!!

Being able to distinguish between Computer-sleep and display-sleep is needed.

Now being smart about changing a feature that has been in use for nearly 20ys would have been nice. Like having the toggle.

Another option to fix this would have been to simply detect when the mouse is moved back and forth quickly (shaken) to wake the screen rather then a one direction movement. This would prevent the accidental wake ups.

But there you go. Apple once again being unable to think out side the apple and do something elegant!

Thank you for opening a thread from last summer. We've really missed this one.
 
Thank you for opening a thread from last summer. We've really missed this one.

I just found it since I just upgraded to mountain lion from snow leopard. Pisses me off as I have upper right corner to put display to sleep, it I hit it by mistake moving the mouse back doesn't wake it back up automatically like it used to. guess i'll have to make that hot corner disappear.

really apple, if you change something that forces me to change behavior and settings, just give me an option to leave it like it was. is that really so hard?

other little things annoy me with lion coming from snow leopard, i've found myself goggleing a bunch of them, half of them have fixes half don't, and a few are just random stuff that only happen to me on one of my computers and make no sense :(
 
Have we found a solution for this? I know it's not a big deal but I really preferred just hitting my mouse or swiping my touchpad on my MBP to wake the screen.
 
Count me in... I'd really like an option to be able to wake the screen up with just a mouse shake instead of a click.
 
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