After a few minutes of sitting idle my MacBook Pro's screen goes black. When you move the mouse the screen comes back to life, you see a bit of the screen saver, then it goes back to the desktop. If the computer is left to sit (until the screen is set to turn off) the sleep light will come on (steady, not pulsing). If the screen is set to never sleep, there is not issues.
My MBP(Dec 07') does the exact same thing as what you people have described. I have not had any luck with Applecare resolving the issue, and "surprisingly", it sounds like news to them. The Apple Service Centre did not know what to say about it other than try and tell me that it is a normal feature?. Really annoying it is. This is my 3rd MBP replacement since purchase in OCT 07', and I don't remember ever having this issue when my 1st MBP came installed with Tiger so it must be a Leopard bug. I also get that thing where the first letter is often not input, which looks like it is here to stay with us forever.
I have no problems watching videos in iTunes either, or DVD player. Cannot do youtube or stream video online without this annoying issue. I do net get the issue if I set the system preferances to"never sleep".. thanks for the heads up on that. Guess that will have to do for a while.
I think what a few have you have overlooked here is that your method has been done before as described in previous post however, once you have restarted your machine, the issue will most likely continue. I informed Apple about the problem and all I have heard is Engineering is looking into it.
When is your screen saver set to activate (minutes) in System Preferences/Desktop & Screen Saver ?
When is your screen set to dim (minutes) in System Preferences/Energy Saver ?
Do you have 'hot corners' set to activate one of both of these in System Preferences/Expose & Spaces ?
The screen saver should come on after 3 mins, the dim before sleep is unchecked, and the display should sleep after 20 mins. I have a hot corner for starting the screen saver and one for disabling it.
Just tried that and it still went out. It seems like the backlight is shutting off, you can still faintly see the image on the screen if you look at it just right.
I am experiencing this same issue on my 15" MBP 2.2 running Leopard.
It is really annoying.
No hot corners, display is set to sleep in 30 minutes and the computer is set to sleep in 1hr. The screen goes black in about 3 minutes. The sleep light is not on during this. When you touch a key or the trackpad the screen comes back on quickly.
Did you have your MBP running Tiger and did this issue only occur after you updated to Leopard. The OP was posting about my new 15" 2.4 Hz MBP which was upgraded to Leopard right away so I do not know how it would have behaved with OS 10.4. My screen is going black after only about 30 sec. The sleep light does not come on when this happens and the screen comes back on instantly when a key is touched. Does anyone know if this is a Leopard issue or a hardware/component problem. I have reset the PRAM and the SMC to no effect.
I only had Tiger on this machine for about a week before installing Leopard. I don't recall this happening under Tiger. I believe we both have the same issue. Perhaps this is a Leopard bug.
I set the energy saver so that the screen will "never" sleep, and so far the screen stayed on for about 10 minutes before I touched to computer. I guess I will leave it this way for now. Maybe there is some disconnect between the control of the LED backlight and the screen sleep setting? I have only had this MBP since Tuesday so I think that I will call AppleCare and see what they say. Hopefully this will be a simple fix in Leopard.
I took my MBP to the Genius Bar at the Apple store and the tech said that he had never seen this happen before. Since I only had the MBP for three days, they gave me a new one. I restored the HD from my Time Machine back-up, which went perfectly, however the new machine exhibits the same problem. This must be a Leopard issue. Please be sure that you report this problem to Apple. I guess for the time being I will set the display to never sleep and the computer to sleep after 20 min and see if this provides a work around for now.
I am also experiencing this problem on my MacBook Pro (Late 2007; Santa Rosa). I did a clean install from Tiger to Leopard and it certainly seems like a Leopard specific problem. This never occurred on Tiger.
I also thought it might be the screen saver setting in Front Row, but it still goes black after I disabled that setting.
I too am having the same issue. Called AppleCare twice with no luck. Went to the Genius Bar today, again with no luck. I left with a homework assignment of "Reinstalling Leopard using the 'Archive & Install option."
Again, no luck.
I have tried...
-Reset the SMC
-Reset the PRAM
-Repair Permissions
-Delete the HD/Library/Preferences/SystemConfiguration folder
-Reinstalled Leopard Twice
My Settings...
-Screen Saver = Never
-Energy Star, display sleep = After 10 minutes.
-Energy Star, computer sleep = After 45 minutes.
-Energy Star, Options, "Automatically reduce brightness before going to sleep" = UNchecked.
After 4 minutes on AC power (2 on battery) the screen goes dark, the little blue light in the latch button does NOT light up. If I do nothing, after 10 minutes, the light will come on steady (apple, for display is asleep,) and after 45 minutes, the light will throb as the computer goes to sleep.
If I check the "Reduce brightness before going to sleep" button, the screen will dim after 4 minutes, at 10 minutes, the screen will darken and the blue light will be steady. In other words, everything works like it should. Once this box is unchecked, voila! There is the bug.
