Sleep light constant

When my new MacBook Pro goes to sleep after the 3 mins specified in Energy Saver, the little light on the front edge is constant.
However when I manually put it to sleep it oscillates in brightness.
Is something wrong?
The display sleeps but is the computer sleeping or not?
thanks
Pete

You might want to check the settings in energy saver. If you put the Mac to sleep from the  menu, it will go to sleep immediately. If you let it go to sleep by itself, it will follow what is set in the energy saver preferences, which may be a longer delay. If you wait long enough, you should eventually see the sleep light.
If the sleep light is not pulsing, it's safest to assume the computer has not yet gone to sleep. If you place it in a bag, be sure the sleep light is pulsing--otherwise it is not really asleep.

Similar Messages

Grey screen, mbp not starting up, flashing sleep light & 3constant beeps

hi there i tried to restart my mbp this am and it would not power up, I get a grey screen, three loud constant beeps and flashing sleep light in time to the beeps!
THe HD sounds as if it is starting up, I hear the whirring then nothing but this annoying been and a stoney grey screen!
please help!!
xx
Fran

Do you have upgraded ram in your MBP? I believe that 3 beep signifies that your computer has failed ram tests on both banks of ram.
Some RAM may appear to pass the Power-On-Self-Test (POST) but still cannot be used by the operating system. In this case, the computer will display a gray screen, sound three tones and blink the power LED on the front of the computer three times, pause, and repeat the blinking until the computer is turned off.
The solution to both of these situations is to first re-seat the memory and test the computer again. If the memory fails the POST test again, try memory that has been verified to work correctly on another system (i.e., "known-good") or order new memory from the Apple Store.

Sleeping light & keyboad lights failure

Dear all,
I read the posts archived in these forums on the following issue but as there was no real guidance coming forward I thought to restate the issue I'm facing in case there is fresh knowledge on it.
A couple of weeks ago, the sleep light on my powerbook G4 started to come on all the time. I didn't noticed it until tonight, but it seems that when this occurs the backlit keyboard is also non-functional. This doesn't happen all the time, but now most of the time.
A friend told me that this was an indication of an issue with the USB ports, which would be grave because they are linked directly to the logic board.
I'm not sure if it is related or not, but I had some relatively serious problems with the directory of my hard drive (sibling link failures). I spent a couple of days cloning and then fixing the problems with Diskwarrior and Disk Utility. It appears the directory is fine now (though I did have to do an archive and install and could, if necessary, clone the good drive and wipe the original drive and start completely afresh). The problem, however, of the sleep light has not gone away. My friend had suggested that an erase and reinstall might cure the issue.
Can anyone give any practical advice on this issue? I cannot afford to lose my logic board, especially given that I live in Egypt where a new logic board would be hard to find and may not be able to be fitted.
Should I worry? Does this symptom mean that my logic board is on the edge of the abyss?
Thanks in advance for any guidance.
Dr Ian Douglas
powerbook G4 Mac OS X (10.4.8) 1.2GB RAM 1.5Ghz

Hey All,
I finally decided to check here, as none of the fixes I attempted appeared to be working.
If it is an L-Board problem, them I'm in deep doo.
I'm currently in Panama, and thought that it might be a problem with some sort of variance in the power cycle here, as my first couple of days here, the PowerBook refused to charge fully.
It would keep at a constant level, and only draw power when it dropped below.
None of the various locations I tried provided relief, until recently, and now P]power's fine and at 100%.
Except I noticed the flashing 'sleep light' last night, tried checking around.
No fixes, and in the last several hours, I just noticed the 'no backlit-keyboard' issue (as it got darker, and it didn't come on).
There's a MacStore (authorized reseller type), I'll have to try them and see if they can do anything, as my AC contract is still valid.
Crikey, this *****.

New Hardrive and now blank screen with sleep light on

My warranty ran out on one of my mbp's, so I decided to install a new hardrive in one. I went through all the steps, and was very cautious. Now when I turn on the laptop the screen is blank and the sleep light stays on the entire time. I hear the cd-rom do some stuff but that's it. If anyone can help me figure out what happened it would be greatly appreciated.

Well problem solved, had to apply some pressure on top of the case by the left i/o and next thing you know I hear the beautiful chime

TS1365 I have a mac pro that when i turn it on the sleep light blinks and makes a beeping sound but my screen is black. Any idea's as to why this is happening and how do i fix it?

I have a mac pro that when i turn it on i get a black screen and the "sleep light" is on but i also get a beeping sound. How do i fix this? I have powered off turned it back on and tried the command, option, P, and R and still nothing

Welcome to the Apple Support Communities
How many beeps do you hear?

HT3964 My MacBook Pro will not boot up. The screen remains dark although the the comput makes the characteristic start up sound. The sleep light is showing.

MY MacBook Pro will not boot upThe screen is dark, but the sleep light is on and it makes the characteristic start up sound.What is wrong?

There is always the forum for MBP
MacBook Pro
https://discussions.apple.com/community/notebooks/macbook_pro
https://discussions.apple.com/community/mac_os?view=discussions
http://www.apple.com/support/macbookpro

Mac OS 10.4.3 and Sleep Light Update

So, after installing Mac OS 10.4.3 update through Software Update on my Rev. A iMac G5 I have experienced the same "fans at full blast" issue that others have reported on reboot. However, the fans went back to normal speed after the system loaded the Finder.
I now just noticed that the sleep light is very bright during the night time hours so I am guessing that this update removes the infamous and troublesome (for many) sleep light firmware update. Can anyone else confirm this?

Finally I find how to reset CORRECTLY the SMU and resolve the problem about the sleep light!
Pay attention, because to reset the SMU in iMac rev A - the first generation - like mine (dec. 2004) must open the backside of Mac and following the instruction like here: http://docs.info.apple.com/article.html?artnum=301283
at the point 11.
In a few words, disconnect all the plugs, open the back, reconnect the power cord, (in the center a little green led is on) ....
Press the SMU reset button (the small, metal button next to the internal power button, shown below) to reset system and power management.
Its work. wow
take care ;))

TS1365 My Macbook Pro 17" 2.44ghz all of a sudden one day decided to not boot up. When the power button is pressed the sleep light in the front on the latch release turns on and there is a small running sound but it never boots up and the screen never lig

My Macbook Pro 17" 2.44ghz all of a sudden one day decided to not boot up. When the power button is pressed the sleep light in the front on the latch release turns on and there is a small running sound but it never boots up and the screen never lights up. Anyone else have this problem? Any ideas?
I'd love to repair it but not if it'll cost 500 bucks or more to replace the logicboard.
I appreciate any help
Michael

Lao Bo,
yes, you can locate and copy a file from your HD to a USB key using UNIX commands. If you know the exact name of the file which you’re trying to locate, try this:
find / -iname filename -print
This command will search your entire internal disk for the particular filename. If you know that it’s within a particular user account, then you can save search time with this variation:
find /Users/username -iname filename -print
Either variation of this command will print all files found which have the given filename. Presuming that you’re able to identify the correct file, you can copy it to a USB key using the command
cp -p filename_returned_by_find /Volumes/USB_volume
If you’re not sure which volume name your USB key has, this command will show you what the possibilities are:
ls /Volumes
Please let me know if you have any trouble with these commands.

Sleep light flashes 5 times - no beeps. What does it mean?

I have a white 2008 Macbook 2.4 Ghz. I recently installed 10.6 from scratch via Retail DVD and the Macbook worked fine. I updated via Software Update and installed all the updates that appeared. There was also a Firmware update to install, which I did after the update to 10.6.8.
But since then, the Macbook has serious video problems.
It boots okay, but the sequence is now:
- front sleep light flashes 5 times; there are no error beeps
- I hear the startup chime
- the Apple logo and spinning wheel appear, and bootup continues
- at the point where the screen goes blue, and would normally boot to the desktop, the screen now goes black and the Macbook appears to go to sleep
If I wait for a couple of minutes, when I press a key to wake the Macbook from sleep: the DVD spins up, the sleep light flashes 5 times, and I now see the desktop. But then the screen goes black after about 10 seconds.
Before the screen goes black, I can see that the boot seems to have completed okay. I have a Wifi connection and the date and time are correct.
If I go really fast, I can move the arrow to the Apple icon in the top bar and choose Shut down or Restart.
I can boot from the internal HD, an external FW HD and an Install DVD.
I can hold down the Option key and I get all the bootable volumes to boot from. I can choose any of them, then start the boot process, but at the same point - the blue screen - the screen goes black and the Macbook goes to sleep.
The Macbook works perfectly fine when connected to an external monitor. In the Display preferences, only the external monitor is available. The Macbook monitor is not listed. As well, iSight and Photo Booth report that no camera is connected.
I've found some info on the Apple site re. the 5 sleep light flashes, but it only refers to the Macbook Air, and indicates a problem with the battery.
Has anyone seen this problem with the Macbook?

From EZ Jim's link, there was another link to this info at the Apple site, re. Power on Self-Tests:
The power on self-test resides in the ROM of the computer. This test runs whenever the computer is turned on after being fully shut down (the power-on self-test does not run if the computer is only restarted).
If a fault is detected during the test, you will not hear a normal startup chime. Instead, the system will beep as explained below. If you experience one of these beeps, you may call your Apple Authorized Service Provider for additional troubleshooting assistance.
1 beep = no RAM installed
2 beeps = incompatible RAM types
3 beeps = no good banks
4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
5 beeps = processor is not usable
In addition to the beeps, on some computers the power LED will flash a corresponding number of times plus one. The LED will repeat the sequence after approximately a 5-second pause. The tones are only played once.
As I wrote, I don't get the Error Beeps. I've had these on other Macs, so I know what they are. Here, I only get the LED flashes.
What is interesting above is that they say that the Power LED will flash a corresponding number of times (as the beeps) PLUS ONE. In my case, then, if I got 5 flashes, then might it mean NO GOOD BOOT IMAGES IN THE BOOT ROM?
Anyway, it doesn't seem to have the flashing LED problem any more. No idea where to go from here.

My macbook isn't powering up and makes a beeping noise in time with the sleep light

Hi There I hope someone can help!!!
I had disconnected the power cable and left the MacBook in sleep mode with the lid shut. When I now go to open my MacBook up, and wait for my system to resume from where I left off the screen doesn't on and the sleep light goes off. when I close the lid the sleep light goes back on as if it is in sleep mode but the same happens when I open it again, no power to the screen.
I order to try get my MacBook working again I tried holding down the power button and switching it back on again but the MacBook now looks as if it is going to power up but the sleep light comes on for about 3 secs and then beeps, then every 4-5 secs constantly the MacBook beeps once in time with the sleep light (to note the sleep light is not following its usual fade on fade off rhythm).
I have tried resetting the SMC using the shift command control option and power button (also this is the only way to stop the beeping and flashing) and when you try and switch on the MacBook if you just press the power button it just follows the same beep with sleep light routine, but if you hold the power button in then the sleep light then flashes quickly about 4-6 times and then starts to beep in time with the flash again.
I will also add I have not reconfigured anything or added any RAM to my MacBook it is still on the standard (manufacturing) configuration as I have been looking about for anyone with similar issues and the main question back seems to be have you changed the RAM, I have also tried resetting teh RAM and the proble still persists.
If someone can help it would be awesome!

Here's the Apple support article on beeps https://support.apple.com/kb/HT1547

Is this sleep light behavior normal w/ a MacBook Pro?

This is the deal. I just purchased a new MacBook Pro 2.4GHz Intel core 2 Duo and I've noticed that the 'sleep light' comes on and stays on when I have my Cinema Display plugged in with the laptop cover closed down (so, therefore, I'm using just the external monitor, not the MBP's screen). It isn't 'sleeping' (it's not pulsing in and out as it does when it goes to sleep), but the light comes on steady whenever I close the lid regardless that the MBP is completely awake and being used with an external monitor.
I also noticed that while I was in the process of migrating data from my powerbook to the MBP, when the screen went dark (non-activity) over time, though the computer was transferring data via firewire, that when the MBP screen did go dark the sleep light immediately turned on. When I moved the mouse or touched a key of course the screen came back and then the sleep light went out. I was very surprised with this. IS THIS NORMAL FOR A [brand new] MACBOOK PRO? Did apple change things from how the PowerBooks were set up?
With my powerbook, the sleep light only comes on when it's ACTUALLY SLEEPING and then it pulses. It doesn't come on steady when the lid is closed. So this is quite different from what I'm used to and want to know what is supposed to be happening with the MBP.
The MBP goes to sleep properly in the various situations I've put it in. So far it functions properly. Except for this sleep light issue. And after doing some reading here I found there to be a number of issues with the MBP's 'sleep' and/or power management systems. And I'd like to know from other MBP users - Is this steady sleep light normal when the laptop screen is 'not in use' tho the computer is still ON and working?
Anyone notice any of these things as well? Your timely responses are much appreciated. I decided to ask here first, as I often find other users as knowledgeable and helpful as any resource out there. Thanks in advance.
BTW, and this is a side note: But I didn't install the battery update (I think it's 1.3?) for my MBP because of the scores of issues I've read about it thus far. Your thoughts on installing the update are also appreciated, if you have any.
Regards, Elizabeth

You have a macbook pro too (as noted), does this happen with yours? If apple changed things and it's normal, like as you stated that it was lite so you'd know you're computer is 'on' but I'd like to know for sure if that's what it's supposed to be doing. (nip it in the bud if there's a problem)
I know it isn't sleeping (not pulsing) but since the light is on (steady), it is something I noticed right away. For example, right now as I type this, with the MBP on my desk w/ the cinema display plugged in (w/ a keyboard) and the lid is closed on the MBP, the light is ON right now. Not pulsing, but a steady light. Doesn't seem like it should be, to me. (at least in my view)
Thanks for your reply Josh.

I have a PB G4 that won't start. It shows the gray apple screen, shows the blue screen, and then the screen goes black, and "sleep" light pulses.

I have a PB G4 that won't start. It shows the gray apple screen, shows the blue screen, and then goes black. The sleep light pulses. From there, I can't turn it off normally. I have tried restarting the PMU. And I have tried unplugging the ac adaptor and removing the battery. From there I have plugged only the ac adaptor in, and it will begin to start but do the same thing once it shows the blue screen.
I tried only using the battery (without plugging in the ac adaptor) and the same thing happens. I tried starting the computer while holding down CTRL, Option, P, and R, waiting to hear the start up chimes 3 times, and then holding Shift as it starts up. But I still get the black screen once I see the blue one, and the computer's sleep light pulses.
I need something very important from this computer. And was able to start it last night. I did not shut down the computer, and was going to take it to a friends to use his printer today. The computer was in sleep mode in the morning.
Thanks for any help!
Gina

What your describing could be a logic board or memory issue.
You did or did not hear 3 startup chimes? If you hear 3 chimes when you start it, that would indicate a memory problem. Try reseating the memory to see if that makes a difference. If you have 2 RAM cards, try one then the other in each slot. If you have 1 RAM card, move it to the other slot. Powerbooks can develop one bad slot.
You may need to pull the hard drive out of the Powerbook, put it into an external case, then read it from another mac.

Sleep Light Most Annoying thing ever.

I was wondering if t here is a way to turn off the sleep light or if Apple could programm a way in the future to turn off this sleep light. I have my mac in my bedroom and cannot turn it against the wall or throw something over it. I have taped stuff over the light but this is sooooo ugly. I like to have a nice bedroom with my beautiful apple computer, not some taped up one. The other thing that drives me crazy is the Aiport Extreme base station lights. Whoever thought of these flashing lights needs to change it.

You do know that you can change the light behaviour of the AirPort Express station with the AirPort Admin Utility under "Base Station options", do you? Set it to constantly on, and it will be less annoying.
What exact Model is your iMac G5? Maybe you can install the ALS firmware Update to get a turned down light during the dark hours.
Each Mac with an ALS (Ambient Light Sensor) will turn down the sleep light intensity when it is dark in the room. With Portables this of course only works when the lid is open. Obviously otherwise there would be no reading on the sensors.
MacLemon

Sleep Light

So I recently started noticing that the sleep light on the front of my powerbook will start to turn on and do it's 'sleep blink' after about 5 minutes of me using my laptop. The system does NOT shut down or go into sleep mode, it simply just blinks for no reason at all. After an hour or so of my powerbook being left on at the office, it will turn off for about half an hour, then start all over again. I have since not had any problems with my powerbook actually going into sleep mode or any related startup/shutdown difficulties. I checked the system logs and I get the following:
Jan 30 17:56:03 localhost kernel: AppleADT746x::doI2CRead cannot read from I2C!!
Jan 30 17:56:08 localhost kernel: iled, retrying...
The above continues for a long stretch of the system log.
Any ideas boys and girls? Thanks!
-Steve

ok well i got the powerbook back after dhl managed to deliver it incorrectly to the wrong house on the other side of town.
Here is the verdict:
Exactly as it says on the repair page:
Product serviced by replacing the following:
630-4721 PCBA,MLB 1.25GHZ,PB15"
did some googling and this is what i found
PCBA=printed circuit board assembly.
MLB= Main Logic Board.
here is a forum topic that talks about it more.
http://forums.macosxhints.com/archive/index.php/t-45841.html
from what it looks like in the repair it was a huge repair i can actually see that they replaced all the main-board components at least on the right side with new ports and everything, but it has fixed the problem i still believe that it was caused by a software update.
Dual 1.25 PowerMac G4 mdd, G5 1.8, Powerbook 1.25 Mac OS X (10.4.6)
Dual 1.25 PowerMac G4 mdd, G5 1.8, Powerbook 1.25 Mac OS X (10.4.6)

Just installed memory, fast blinking sleep light

Installed Ram on my MacBook. Now I have blank screen and my sleep light is rapidly blinking?

Count me in on this question - I have a 2006 Macbook - trying to upgrade 1 gb ram (2 X 512) to 4 bg (2x2) - I got the PC2-5300 667 DDR2 2x2 GB kit from Kingston, and had the same issues. The only thing that will work is the original ram in the notebook now.
The reason I'm trying to do this is to upgrade to Lion to be able to switch over to the freaking iCloud soon...
Any advice???

Sleep light constant

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