MacbookPro + External Monitor wake up from sleep

Hey,
If I connect my mbp to external monitor and press sleep and then close the lid, 30% of the cases I cannot wake it up. I have all updates in Mountain Lion.
Any thoughts about it? Software bug?

But still, the sleep issue persists, so it is a more subtle timing issue. I upgraded my MBP with a Corsair 8GB kit ( http://www.corsair.com/us/corsair-mac-memory-8gb-ddr3-sodimm-memory-kit-cmsa8gx3 m2a1333c9.html ) and it indicated it had 9-9-9-24 CAS timing. It has worked flawlessly till now. Note that my Mac is a Late 2011, whose memory runs at 1333 MHz.
As far as I can tell, the 13" Mid 2010 models used 1067 MHz memory with 7-7-7-20 CAS timing: http://www.corsair.com/us/corsair-mac-memory-8gb-dual-channel-ddr3-sodimm-memory -kit-cmsa8gx3m2a106c7.html

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IMac always auto detects for external monitors after waking from sleep or from display off

I've got a Dell 24" monitor (2408WFP) plugged into my mid 2011 iMac via DVI cord and thunderbolt attachment. Things work fine.
When I need to leave my computer, I usually turn the displays off using the shortcut keys: CTRL + SHIFT + EJECT
This works perfectly and both displays go black. However, when I return to my computer and reactivate the iMac, the iMac display will turn blue as if I have just plugged in a new monitor even the external monitor is still plugged in. It usually flashes blue twice before displaying the password prompt. I can usually just log back in as normal. I've never had this happen before using Snow Leopard. It's annoying but strange.
However, even more strange is that sometimes when returning to the desktop, the iMac will do the auto detect display thing and then when I log back in, the external display just shows static as if there is no signal. I've checked the cable a million times and everything is as tight as tight can be and both ends are plugged in properly. Unplugging the displayport adapter from the iMac and then reattaching it restores the desktop on the secondary display although sometimes, it results in the secondary display showing a gray background picture instead of my normal picture. Replugging the secondary display seems to fix that too although sometimes it doesn't.
Why is this happening?
- Problem with the adapter?
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I need to stress the point that this has never happened before with Snow Leopard.
If I am the only one experiencing this then I suppose it may be an issue with the iMac or adapter or even the cable. But if anyone else can shed light on this problem, I'd really appreciate it.

Hi Micheal,
I've been experiencing the exact same issue with my new iMac I just bought. I bought it refurb so I wasn't sure if it was a defect with the hardware or not. Since I'm not the only one I will asume it's not for now.
Setup:
- iMac 27-inch 3.4GHz (Release May 2011)
- Dell 2709W external monitor
- Hooked in with mini display port to DVI adapter
- Lion 10.7.3 all up to date to this day
From what I've been able to gather the issue presents itself only when my Dell 2709W enters "Power Save Mode" after I do CTRL + SHIFT + EJECT or when the diplays simply goes to sleep by themselves.
Although if I hit that combination and the displays goes to sleep but I don't wait long enough for my Dell monitor to actually "Power Save Mode" (wait like 2 sec) then touch the keyboard then the 2 displays (iMac and Dell) resumes from sleep without the issue presenting itself.
I'm tempted to buy the mini-display port to HDMI just to see if the issue is still present with that adapter. If I do I'll update my post with the outcome.
If anyone else has any info to help with this issue it would be greatly appreciated. It's very annoying when you resume from sleep and you find all of your windows that where opened on the external display before sleep squeezed into your main display (iMac).
Thanks!

Turning on monitor wakes mac from sleep

I've hooked up my G4 Gigabit Ethernet to my HDTV, and I'm happily using it to play music and watch slideshows. Very happy to breath some life back in the girl.
One issue though: If I turn on my monitor to watch TV it wakes the G4 from sleep (the state I keep it in most of the time). Most of the Shareware or Scripts I've seen are for the exact opposite issue -- trying to keep the computer from going to sleep -- I want to keep the computer asleep!

Options is there in Tiger. This is a screenshot of the Display Preferences from a Tiger volume.

No video when using external monitor and resuming from sleep.

I know some people were having problems with the new MacBooks, but I guess the Mac driver fixed something. However, when I'm in Windows and have my Dell 24" hooked up to the Mini DisplayPort -> DVI adapter, I cannot resume from sleep. The monitor will turn on, but I can't get an image on it.
In MacOS it seems to resume from sleep fine, but not in Windows. Anyone else seeing this?
Thanks!

Is no one else getting this error? Does anyone have any issues when their MacBook is hooked up to an external monitor and it goes to sleep?

MacbookPro will not wake up from sleep after memory upgrade

I am restarting this topic as I have read thread after thread (many years old) and they all just die off with out any definite solution.
I have a 13" Mid 2010 Mac book Pro which originally came with 250gb HDD and 4gb memory
I have recently upgraded to a 256 SSD and a 1TB HDD optidrive replacement along with a 8GB memory upgrade and I am now running Lion 10.7.4
If I close the lid and open within approximately 1 minute it will wake up quickly as normal, if I leave it asleep for a minute or 2 it will not wake up with out holding the power button for several seconds and then I still need to wait a several seconds for it to respond and actually wake up. Sometimes I will need to completely shut down and restart. If I wanted a computer that takes forever to wake up I would have a PC!
The last thing I upgraded was the memory so I am sure it is the cause of the sleep problem and not the SSD conversion which was working fine with the original 4GB mem before upgrade.
I have read about resting the PRAM, resetting PMC as well as executing a line in the terminal, but all of these seem to have variable success. I have tried every thing but using the terminal to adjust the hibernate mode setting as I am not proficient with terminal and don't actually understand what changing this setting does (sudo pmset -a hibernatemode 7).
Has anyone resolved this sleep problem and what did you do? I would greatly appreciate some knowledgeable insight on the hibernation settings, and what running the line in the terminal is actually doing... even better what is the default so I can change it back if it doesn't resolve the problem.
A simple memory upgrade causing such a issues is very irritating.... Any help would be greatly appreciated!

But still, the sleep issue persists, so it is a more subtle timing issue. I upgraded my MBP with a Corsair 8GB kit ( http://www.corsair.com/us/corsair-mac-memory-8gb-ddr3-sodimm-memory-kit-cmsa8gx3 m2a1333c9.html ) and it indicated it had 9-9-9-24 CAS timing. It has worked flawlessly till now. Note that my Mac is a Late 2011, whose memory runs at 1333 MHz.
As far as I can tell, the 13" Mid 2010 models used 1067 MHz memory with 7-7-7-20 CAS timing: http://www.corsair.com/us/corsair-mac-memory-8gb-dual-channel-ddr3-sodimm-memory -kit-cmsa8gx3m2a106c7.html

MacBook Pro won't stay asleep with external monitor attached. When sleep is selected from the Apple menu the computer will go to sleep only to continually wake up...go back to sleep...wake up...etc. every few seconds.

MacBook Pro won't stay asleep with external monitor attached. When sleep is selected from the Apple menu the computer will go to sleep only to continually wake up...go back to sleep...wake up...etc. every few seconds. This only happens when using the external monitor. Does anyone have any suggestions?

Mine does that too. The worst thing is when it goes to sleep, then wakes up and keeps running while the lid is closed and it is wrapped up in a case. I am afraid when the hot weather comes it is going to burn up. I am hoping Apple fixes it in the software or they may have a melted MBP to replace.
Then when I open the lid it is crashed running at fill tilt, pumping out heat to beat the band. I am forced to hold the button down and reboot.
I wiped my hard disk and reinstalled my OS, but it didn't help. I reversed my OS to 10.5.0 and it solved the DVI problem but still won't sleep. This post will probably be deleted by Apple, they did it a few days ago. I just don't know what to do, and I consider myself a real Apple expert. Just hoping you realize you are not the only one.

After 10.9.3 update monitor doesn't wake up from sleep

I have an LCD connected to the Mac Mini via a mini-DP to DVI adapter and a video projector is connected directly at the HDMI.
The LCD is the "main" screen while the projector is only switched on for watching TV or movies.
My "Computer sleep" is set to "never" and "display sleep" to 15min.
All was working well until I updated to 10.9.3 ...
Now, when the LCD goes to sleep (projector is powered off) it doesn't wake up any more.
The computer is running and it is responding to my key-presses etc. but the monitor remains in a coma.
Powering the monitor off and on again resolves the issue, e.g. the display shows correctly.
This is however only a temporary fix as it refuses to wake up upon the next sleep...
The monitor itself is fine, it works on other systems flawlessly, e.g. on an older Mini.
Any ideas?
I have already force-fed it with the combo-udate but that didn't help.

My iphone 3GS does the same thing, not only does it suddenly fail to wake up from sleep. It just crashes and I have to do a hard reset. Today it just turned off when the ipod was playing I was a mile away from it and it was in airplane mode as well. I have restored from backup once and would dearly love to have it downgraded but that doesn't seem to be much of an option. My phone ran like a dream before the upgrade....now I hate to say it but its completely unreliable.
With so many people experiencing the same problem it makes me wonder why there isn't a fix.

TS1367 I am asking this question about my 27 inch iMac Desktop Computer. I normally use my Laptop and very seldom use the desktop but was going to download the new software earlier today. I could not wake it from sleep.

The other evening we had a storm and lightening hit a house a few doors from me. It jolted my chair but that seemed to be all here. I use my laptop most of the time but since there was a software download I went to my 27 inch iMac and could not wake it from sleep. The light on the keyboard is not lit either. I have this connected to a Battery Backup Power so do not know what has happened or what to do. When I push the power button to try to turn it on nothing happens. There is no shound, no video, nothing; however the disk drive that does my time maching backup has a light on it and the other things that are plugged into the battery power pack also have lights on them. The printer is on and says it is ready to print. Since I cannot boot it up I do not know what to do to even try to get it started. I did not know what would happen if I put the first start up disk in the external disk drive and try that or not. The internal drive is broken. I do not have any repair shops or apple stores around me at all less than 150 miles away and I am disabled with 24/7 help and oxygen so can not take it in. Are there any suggestions that anyone can give me. I have not been able to find any way to reset the backup battery pack either. It is a Tripp-Lite. Any help anyone can give will be greatly appreciated. Thanking you in advance for your time and trouble.
Jean

The other evening we had a storm and lightening hit a house a few doors from me. It jolted my chair but that seemed to be all here. I use my laptop most of the time but since there was a software download I went to my 27 inch iMac and could not wake it from sleep. The light on the keyboard is not lit either. I have this connected to a Battery Backup Power so do not know what has happened or what to do. When I push the power button to try to turn it on nothing happens. There is no shound, no video, nothing; however the disk drive that does my time maching backup has a light on it and the other things that are plugged into the battery power pack also have lights on them. The printer is on and says it is ready to print. Since I cannot boot it up I do not know what to do to even try to get it started. I did not know what would happen if I put the first start up disk in the external disk drive and try that or not. The internal drive is broken. I do not have any repair shops or apple stores around me at all less than 150 miles away and I am disabled with 24/7 help and oxygen so can not take it in. Are there any suggestions that anyone can give me. I have not been able to find any way to reset the backup battery pack either. It is a Tripp-Lite. Any help anyone can give will be greatly appreciated. Thanking you in advance for your time and trouble.
Jean

Hp laptop doen't wake up from sleep

Hi. i bought an hp 250 laptop 7 month ago from budapest and during this 8month i have done every thing to make it usable but still its not usable. first for long time i used days and nights to try different operating systems and googling solutions and downloading and installing drivers and making sure windows and drivers are up to date. then I gave the laptop to support service and after long time i noticed they just changed motherboard but problem is same as before. i gave back the laptop for second time and they changed the ram that was also faulty but again the sleep mode problem was same. i tried changing operating system and updating drivers and bios again but the problem was same. so for the 3rd time i asked hp central guarantee service to help me this time with different repairer and i explained the problem and gave it and after i got back the laptop for 3rd time they said they changed motherboard again but again nothing problem changed about the sleep.shouldnt the guarantee change the laptop if they cant make laptop usable after 3 times i gave it to them? i think i will be affraid to buy any thing with hp label for my whole life now. please help me or let me know if i should just throw it away.

Hello all- I haven't seen a resolutoin posted on this so wanted to include my laptop which has a similar problem. It's a Toshiba Satellite L655D-S5145 running Windows 8. This is an intermittent problem and so far has been unpredictable in terms of repeating it, but when it happens essentially it will not wake up from sleep (or some unknown locked state) when the lid is opened from a closed position. Sometimes the fan can be heard running, and the 1st 3 lights are on as white. The normal sleep state has the 1st and 3rd lights white, with the 2nd one slowly blinking orange. The basic symptom is that the screen stays blank and I at first thought this was an intermittent monitor/hardware problem, but I am now thinking it is some type of subtle software or driver bug. If anyone runs across a definitive fix please post it. Doing a System Restore or the like is not an option for me at this point. ps- Toshiba support, if you're listening I am 100% confident that someone on your support or engineering teams knows what this problem is so please speak up

MacBook wont wake up from sleep, shuts down randomly, and won't burn. . .

Ever since I upgraded my MacBook to Mac OS X Leopard 10.5.4 from Tiger (and also purchased and installed Office Mac 2008), it will not wake up from sleep. If I close it while it is still awake, (which I normally would without problems before I upgraded) it will not wake up when I open it; the screen just stays black and I have to use the power button to restart it. This also happens when it falls asleep naturally after being on screen saver. It is a really big annoyance and I know that it must be damaging my computer.
Also, now it will randomly shut down if it does not have the power adapter plugged in, which never happened before.
ALSO, my CD burn attempts will fail midway and say "medium write error".
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Welcome to Apple Discussions:
You need to give us more info about your computer: RAM, speed, HD size, freespace etc.
Look at the activity monitor and console logs for potential issues.
Normally a computer will run faster and better with Leopard.
You need to take inventory of any Tiger apps that are not Leopard compatible that may be problematic. Also check what items you have in your login pane.
Have you recently run the disk utility and repaired HD and permissions?

IMac wakes up from sleep independently

My iMac wakes up from sleep mode. Sometimes I have to login, sometimes not. Time Machine is inactive because the external HD is not connected. I´m a new Apple-User, switched just about 14 days ago to Apple and I don´t find a solution for my problem.

I have the same issue. I'm also not using Time Machine on my iMac. It happens within the same couple of hours every few evening. I think it might be a process / update that is looking for updates in the background. I think I'm going to check the logs next time it happens.

LX195 WHS High hardware interrupts after wake up from sleep

I have a HP-LX195 windows home server which is set to sleep every day between 2AM and 7 AM. On wake up from sleep the CPU usage is triggered to 35-40%. No tasks are executing during this period and if any they add up the original usage. Using process explorer notices these CPU utilization is due to hardware interrupts. Using kernrate noticed the high usage is on intelppm.sys.
I have determined this is due to sleep. If the server is kept running without sleep, the hardware interrupt is minimal on normal operations. But if i manually set the server to sleep and wake up, the usage triggers back to 35 or 40. The high cpu utilization doesn't go away until restart.
I have tested this with other LX195 and it seems consistent and repeatable. I have posted this on microsoft WHS forum as well. This doesn't happen with EX490.
Is it possible to get a fix from HP regarding the same. Thanks Raja

does hp support monitor these forums?

Macmini 2011 on lion, goes to a blue screen om monitor when awakening from sleep mode, last 3 or 4 seconds, can anyone help? Thanks

Macmini 2011 on lion, goes to a blue screen on monitor when awakening from sleep mode, last 3 or 4 seconds, before desktop appears, can anyone help? Thanks

Depending on the system configuration, this may not
be unusual. The Mini that I use for my home theater,
which is connected to a receiver then to a TV, all via
HDMI usually takes a couple seconds to come up just
the way yours does. Same happens when I switch sources
on the receiver. Actually, it starts with the blue screen and
will sometimes flash before the desktop comes up.
It seems that when HDMI goes dormant, there is handshaking
that needs to be re-established, at least thats my SWAG on it.
On the other hand, the Mac Mini Server that I use as a work
station and is connected to a Thunderbolt Display, wakes to desktop
in a second, maybe two. On this combo, it just comes up to
the desk top.
It also probably depends on what processes were active when
the Mini was put to sleep. So it may take some time for it to get around
to reloading the desktop.

Early 2008 Mac Pro wakes up from sleep with Mavericks.

Ever since I upgraded to OSX Mavericks on Tuesday, my early 2008 Mac Pro keeps waking up from sleep mode every couple hours. It goes back to sleep again on its own though after a minute, so I'm thinking it's some kind of new automated feature that I'm not aware of. With the Mac Pro being fairly loud when it wakes up from sleep mode, it woke me up three times last night! Is there some kind of option in the system preferences that I'm not aware of that can deactivate this new behavior? I usually only shut down my computer once a week, and keep it in sleep mode when I'm not using it most of the time, but I'm going to have to start shutting it down every night now to keep it from waking me up throughout the night...

Hello MARl0,
You may want to disable the Power Nap functionality, if available, in System Preferences -> Energy Saver.
OS X Mavericks: Change Power Nap settings
http://support.apple.com/kb/PH14391
Cheers,
Allen

Why does my macbook pro not wake up from sleep?

I have a brand new Macbook Pro 13inch. It freezes up when I try to wake it from sleep. I was wondering if there is a fix for this.

Hello,
Thanks for visiting the Apple Support Community! Have you performed all of the software updates on your MacBook Pro?
To do this:
1. Click the Apple Logo in the top left
2. Choose "Software Update"
3. Click "Check for Updates"
Install any available updates and restart your Mac. Let us know if this resolves it or not. Additionally, you have posted in the iPhone Discussion area; for future reference please post in the correct category.
Thanks!

MacbookPro + External Monitor wake up from sleep

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