I've been having occasional issues with my 13" MBP (2.4 GHz Core 2 Duo, 4GB RAM), in that it won't wake up from sleep, typically after it's been closed and then re-opened. Anyone know of any solutions or fixes?
Not an SSD either.
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MBP not waking up from sleep!
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If the battery is low enough, an Apple book will refuse to wake up from sleep until it is plugged in. If your battery is low, that would explain it. If your battery is not low, it is possible there is a problem with the battery not communicating properly with the motherboard. In that case, try resetting PRAM: shut down, hit the power button, immediately press and hold option + command + P + R, keep holding them until you hear a second "boot gong"
If that doesn't work, I don't know how to do the other stand by procedure since it always required removing the battery first, which you can't really do in a unibody. After the battery was out, you'd hold the power button down for 30 seconds then put it back together and boot it. Fixed many an iBook back in the day.
If none of this helps, I guess you just have to do what Apple wants you to do in the first place and go visit the Apple Store. :/
If that doesn't work, I don't know how to do the other stand by procedure since it always required removing the battery first, which you can't really do in a unibody. After the battery was out, you'd hold the power button down for 30 seconds then put it back together and boot it. Fixed many an iBook back in the day.
If none of this helps, I guess you just have to do what Apple wants you to do in the first place and go visit the Apple Store. :/
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have you tried to reset the PRAM? turn the system off, and when you turn it back on press the P-R-Command-Option keys until the system turns off again and starts to reboot. OR, if that dosent work try to turn the system off and remove the battery, press and hold the power button for 10 seconds to reset the SMC(System Management Controller). If its a newer system if you turn if off and hold "D" when you restart the system it will boot to a diagnostic partition to see if anything its clearly wrong with the system.
I also work at an apple store, if none of these helps i can hook you up with some tools to help you out. My twitter handle is same as on this site.
I also work at an apple store, if none of these helps i can hook you up with some tools to help you out. My twitter handle is same as on this site.
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My MB and MB Air both did this, I changed the hibernate mode using Terminal -
sudo pmset -a hibernatemode 0
www.macworld.com/article/53471/2006/10/sleepmode.h...
sudo pmset -a hibernatemode 0
www.macworld.com/article/53471/2006/10/sleepmode.h...
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I find this happens to me in two situations:
1. Some weird combination of closing the lid while disconnecting an external monitor. The symptom is that the laptop screen is on, but the backlight stays off. I haven't re-encountered this, but I believe the fix is cmd-F1, which flips the desktop from Mirroring to Extended.
2. While the lid is closed, disconnecting an iPhone freezes the keyboard and trackpad upon re-opening. To fix, close the lid again and wait 10-ish seconds. Re-open. If the laptop doesn't awaken, hit the Fn key to wake it.
1. Some weird combination of closing the lid while disconnecting an external monitor. The symptom is that the laptop screen is on, but the backlight stays off. I haven't re-encountered this, but I believe the fix is cmd-F1, which flips the desktop from Mirroring to Extended.
2. While the lid is closed, disconnecting an iPhone freezes the keyboard and trackpad upon re-opening. To fix, close the lid again and wait 10-ish seconds. Re-open. If the laptop doesn't awaken, hit the Fn key to wake it.
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It might be a software bug. Downgrade from 10.6.7 to 10.6.3.
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I had this problem quite often when I worked too much with my Adobe CS4 (mainly Photoshop and InDesign). I only had 4GB of RAM these days and when the RAM was full and there was a lot of swapping my MBP refused to wake up after sending him to sleep either (And by full I mean not much free RAM left, not counting the not active RAM part).
Since I upgraded to 8GB of RAM the problem hasn't re-appeared any more.
I would recommend checking on the RAM usage via Activity Monitor and if you see not much memory left reboot the mac, that should clean up the mess and it should go in and out of sleep smoothly again. (The ne Firefox is also some kind of memory hog if it runs to long without closing and reopening it.
17" MBP, 2.93 Ghz Core 2 Duo, 8GB RAM
Since I upgraded to 8GB of RAM the problem hasn't re-appeared any more.
I would recommend checking on the RAM usage via Activity Monitor and if you see not much memory left reboot the mac, that should clean up the mess and it should go in and out of sleep smoothly again. (The ne Firefox is also some kind of memory hog if it runs to long without closing and reopening it.
17" MBP, 2.93 Ghz Core 2 Duo, 8GB RAM
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Veronica,
Agree on PRAM/SMC Reset, and a check of the health of the battery -- download free Coconutbattery for this.
Can also run a continuous ping to the MBP, close it, open it, (repeat until the issue surfaces), and see if the pings pick back up right away. If it does, it may be the lcd not powering back up, but the laptop waking up properly. Could also use a music playing app that isn't sleep-aware (make sure it's not one like Itunes that knows to stay paused upon closing lid).
Agree on PRAM/SMC Reset, and a check of the health of the battery -- download free Coconutbattery for this.
Can also run a continuous ping to the MBP, close it, open it, (repeat until the issue surfaces), and see if the pings pick back up right away. If it does, it may be the lcd not powering back up, but the laptop waking up properly. Could also use a music playing app that isn't sleep-aware (make sure it's not one like Itunes that knows to stay paused upon closing lid).
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Like many others here, I have been having this same problem. I took mine into the Genius Bar where they did a quick check on the hall effect sensors and told me it's a software issue. I've been testing for a few days now since then.
I am suspecting perhaps a Firefox issue since I always have that open. I use Lastpass, NoScript, ReadItLater, TreeStyleTabs, Flashblock, SQLite Manager and HTTPS-Everywhere add-ons. I've been playing with disabling them to narrow down the culprit. It'll take me a while.
I had this happen once when Firefox wasn't even running, so i may be chasing the wrong goose.
15" MBP 5.1 (late 2009) 2.53GHz Core2Duo, OS X 10.6.7, 4Gb RAM, OEM 750GB HDD
I am suspecting perhaps a Firefox issue since I always have that open. I use Lastpass, NoScript, ReadItLater, TreeStyleTabs, Flashblock, SQLite Manager and HTTPS-Everywhere add-ons. I've been playing with disabling them to narrow down the culprit. It'll take me a while.
I had this happen once when Firefox wasn't even running, so i may be chasing the wrong goose.
15" MBP 5.1 (late 2009) 2.53GHz Core2Duo, OS X 10.6.7, 4Gb RAM, OEM 750GB HDD
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I have the exact same machine and mine did the same thing, I took it to the Genius Bar and they said to do a PRAM reset and that took care of it, at least for a few weeks, just had to do one again 2 weeks ago but that solved it again. You can find out how to do the PRAM reset here: support.apple.com/kb/HT1379
Mine did this mostly after closing the lid without putting the computer to sleep or after the computer went to sleep on it's own and sat for several hours.
Mine did this mostly after closing the lid without putting the computer to sleep or after the computer went to sleep on it's own and sat for several hours.
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#1 culprit - video card / drivers
#2 culprit - RAM
#2 culprit - RAM
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I have had issues with a previous 13" MB that would not come back from sleep or so I thought. What ended up happening was my display was dimmed completely by the power management settings. When you attempt to wake it up check to see by pressing the f2 that the display has just not dimmed.
On another not resetting NVRAM and PRAM tends to solve most wonky macbook issues.
On another not resetting NVRAM and PRAM tends to solve most wonky macbook issues.
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I have the original 13" MB (aluminum but not pro) with 2.4 GHz Core 2 Duo and 2GB RAM. I've had that issue a lot with mine. When you close the lid does the heartbeat stay steady but when you open it it goes off but the laptop does not wake? If you angle the screen in the light can you see an image of what's their but the backlight isn't turning on? If it is you may be in trouble. I've had everything in my MacBook replaced and it still happens from time to time. Apple claims it's software but it still happened right after they returned my laptop from being repaired and gave it a fresh image with nothing on it. I've been fighting them for 2 years over it and they can't do a thing about it. I personally believe it was a design flaw in the original version and the reason for the drastic redesign so early in the models life.
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Have you tried resetting the SMC?
I'm sure you know how, but just in case: Make sure the computer is plugged in, then shut it down. Hold down Shift-Ctrl-Option on the left side only, then press the power button firmly once, then let go while the keys are still held down. After a second, let the keys go.
If this doesn't resolve your problem, if you can find a date and time this occurred and find the relevant console system.log entries and post them, I can try to decipher them for you.
I'm sure you know how, but just in case: Make sure the computer is plugged in, then shut it down. Hold down Shift-Ctrl-Option on the left side only, then press the power button firmly once, then let go while the keys are still held down. After a second, let the keys go.
If this doesn't resolve your problem, if you can find a date and time this occurred and find the relevant console system.log entries and post them, I can try to decipher them for you.
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I've had the same sporadic issue with my 15" MBP unibody (2.8GHz Core 2 Duo, 8GB RAM). Usually end up doing a hard power-off (holding the power button for 5 seconds) to turn off the laptop and then power it back up. It's been hard to figure out what's causing it, well, because the computer is usually dead, and it happens fairly infrequently. I do notice that it seems to happen with a context change, ie: put it to sleep at work, bring it home and try to turn it on. If anybody else has some insight, that would be great!
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My MacBook Air suffered a lot from this, and it turned out to be a fan-related issue. Also, make sure you have current firmware.
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I had this issue as well with my 15 inch MBP which I believe was manufactured in 2008. Two things helped fix the issue - the immediate fix was to remove and reseat the battery, which always allowed me to bring the machine back up.
The long term fix was related to this KB issue - support.apple.com/kb/TS2377 - basically a bad Nvidia chip. Apple tested and replaced the board for me, and since that point I no longer had the sleep issue. I dont see any mention of a 13 inch model in that KB article, but perhaps you are having a similar problem on your machine.
The long term fix was related to this KB issue - support.apple.com/kb/TS2377 - basically a bad Nvidia chip. Apple tested and replaced the board for me, and since that point I no longer had the sleep issue. I dont see any mention of a 13 inch model in that KB article, but perhaps you are having a similar problem on your machine.
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I get that sometimes. Then I reboot and it's fixed. The MBP needs a reboot once in a while... "restart" is even cited 18 times on the User Guide apple, advising to reboot the machine in order to fix issues such as freezing up: manuals.info.apple.com/en_US/MacBook_13inch_UsersG...
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A couple of times I've turned the screen brightness all the way down and then forgot and think it won't wake up .'o
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Had the issue today with my April 2k11 Air.
It went to sleep after running low on power, I plugged in the charger, and when I tried to boot it, it made a strange green flicker on the screen, and it wouldn't come up with login screen.
I had to hard reset it by holding down the power button, when it booted, it wouldn't let me login to my account, so I tried all different kinds of tricks, booting in shell to check if I could see something there that would help me out, I couldn't.
I couldn't reset my account password using my master password, and yet it kinda did, because when I logged in to tthe guest account, I could use system preferences to add a new administrator account, using my new password for the old unusable account.
I then logged out, and tried to log on to the old account, and was now able to log on, though I had to apply the new password to my keychain.
I suspect all this funny stuff had something to do with my FileVault encryption partition not being properly demounted?
I know this letter dosen't exactly offer any solutions, just letting you know you're not alone.
I always just want to point out that this is the forst time ever I've experienced any issues with the Mac OS, since I started using it in 2008.
It went to sleep after running low on power, I plugged in the charger, and when I tried to boot it, it made a strange green flicker on the screen, and it wouldn't come up with login screen.
I had to hard reset it by holding down the power button, when it booted, it wouldn't let me login to my account, so I tried all different kinds of tricks, booting in shell to check if I could see something there that would help me out, I couldn't.
I couldn't reset my account password using my master password, and yet it kinda did, because when I logged in to tthe guest account, I could use system preferences to add a new administrator account, using my new password for the old unusable account.
I then logged out, and tried to log on to the old account, and was now able to log on, though I had to apply the new password to my keychain.
I suspect all this funny stuff had something to do with my FileVault encryption partition not being properly demounted?
I know this letter dosen't exactly offer any solutions, just letting you know you're not alone.
I always just want to point out that this is the forst time ever I've experienced any issues with the Mac OS, since I started using it in 2008.
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1. reset SMC (system Managment Controler) support.apple.com/kb/ht3964
2. Reset Pram docs.info.apple.com/article.html?path=Mac/10.6/en/...
there are other things but i would start ther.
2. Reset Pram docs.info.apple.com/article.html?path=Mac/10.6/en/...
there are other things but i would start ther.
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I had a similar issue with my older non-unibody MBP. It would either do the same thing or it would wake the computer up from sleep but not the display (the display backlight would never fully turn on) rendering the computer mor or less useless.
Never really found a solution however... so I guess I'm not much help here.
Never really found a solution however... so I guess I'm not much help here.
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OMG VERONICA! RTFKB ;)
Intel-based Macs: Resetting the System Management Controller (SMC)
Last Modified: April 15, 2011
Article: HT3964
support.apple.com/kb/HT3964
Intel-based Macs: Resetting the System Management Controller (SMC)
Last Modified: April 15, 2011
Article: HT3964
support.apple.com/kb/HT3964
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My MacBook Pro 15in did this for a few months. After 3 trips to the genius bar and swapping out ram and reloading OSX, they finally replaced the motherboard and all has been well since.
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I have the same problem from time to time with my white macbook. Would love an explanation.
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You could have a strong magnetic field nearby which could interfere with the magnets that take care of waking up the MBP (similar to the iPad2)
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Occasionally, this problem will require a reinstall of Mac OS X. Try the suggestions here first though.
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Corrupt sleep image
sudo rm /var/vm/sleepimage
sudo rm /var/vm/sleepimage
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Well, depending on how much content you have open, your Mac isn't really a sleep immediately after you close the lid. You'll see the Apple logo turning off, but that's just the screen. It'll be completely a sleep once the front LED indicator begins to blink.
I get mixed results. Sometimes it does wake up quickly and sometimes it doesn't until I let it sleep. It's something you'll have to deal with unless you close all your Apps before you send it to sleep, or get an SSD. I'm going for an Air as soon as it gets the backlit keyboard just for that feature.
I get mixed results. Sometimes it does wake up quickly and sometimes it doesn't until I let it sleep. It's something you'll have to deal with unless you close all your Apps before you send it to sleep, or get an SSD. I'm going for an Air as soon as it gets the backlit keyboard just for that feature.
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Have you tried taking it to the Apple Store? It might cost a bit but they will fix it for you. You can also try some troubleshooting tips online :)
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