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Keleko

macrumors 68000
Original poster
Mar 26, 2008
1,928
2,768
The past two nights when I sleep my Mac and come back to it in the morning, it has crashed and restarted with a Sleep Wake Failure. I just got it on Saturday, and the past two nights are the first uses of sleeping with devices plugged into it. I have a TB2 drive, USB 3 hub, power and display plugged in. I'm going to turn off Power Nap and see if that keeps it from happening.

Anyone else had this happen?
 

mwcarl

macrumors newbie
Nov 21, 2016
15
1
This also happens to me on a regular basis. No devices plugged in during sleep.
 

Keleko

macrumors 68000
Original poster
Mar 26, 2008
1,928
2,768
I think it may only happen when I have the TB2 drive plugged in. I tried ejecting it and sleeping, and it didn't crash that time. When I woke it everything came up fine.
 

kspr

macrumors newbie
Dec 21, 2016
2
0
Berlin
I had exactly the same problem. Also with a Macbook Pro 2016 15".
After longer time in sleep mode, it crashed. On restart I always got a crash report for a kernel panic.

The firt time, it happends after 2 or 3 days. But I had a usb hub plugged so thought it was the reason of the crash.
But then it happend always often. Removing login items for the user didn't resolve the problem.

I have then formated my disk and performed a clean install. without installing any other software I got the crash after at least 20 or 30 minutes in sleep mode.

I had a call with the apple support. But I had already tried everything. Run the diagnostic tool also didn't bring any result.
The last thing I had to do (it was an advice from his supervisor), was to perform a malware check with http://malwarebytes.org. It also not resolved my problem.

So a sent my computer back and ordered a new one...
 

Emiel1

macrumors newbie
Oct 18, 2016
21
1
The Netherlands
I have the same problem, what I do is just turn the display off instead of sleeping the whole computer. This works for me. Probably a software issue that gets fixed soon
 

therealseebs

macrumors 65816
Apr 14, 2010
1,057
312
I've been having issues like this trying to wake a macbook pro from sleep since I got my 2015 13" in early 2015. I've mostly just stopped expecting sleep/wake to work on OS X.
 
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SoloXis

macrumors newbie
Dec 22, 2016
22
5
SG
Mine crashed when I shut the lid (which made it sleep), plugged it into the LG 4K display right away and tried to wake it up with a wired mouse connected to the display. Haven't tried doing that again.
 

Trik

macrumors 6502
Jan 18, 2011
371
1,198
Washington, DC
I am definitely also having this issue. Happens the most when connected in clamshell mode to my 4k Monitor at work. I will get up for lunch, and come back to a computer that when I attempt to wake it, is actually waiting for my password to unlock Filevault. When it boots back up, says it had a kernel panic during sleep / wake.
 

Keleko

macrumors 68000
Original poster
Mar 26, 2008
1,928
2,768
I determined that if I unplug the USB 3 hub (with a drive and SD Reader plugged in) and the TB2 drive, I don't get a sleep/wake failure. So it must be something to do with the external hardware somewhere.
 

Fireball Dragon

macrumors 6502a
Nov 26, 2012
880
256
Chigwell, England
I have the same problem.

When I put my MacBook 15" 2016 TB to sleep connected with the 4K LG, I get a sleep-wake restart.

This does NOT happen when I use my 12" 2015 MacBook and the 4K LG monitor.

The issues also does NOT happen when I put my 15" 2016 MacBook to sleep disconnected from the display.

Clearly this issue is some sort of compatibility problem with the 15" 2016 MacBook and the 4k LG monitor.
 
Last edited:
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hollandog

macrumors regular
Mar 13, 2014
226
82
I get the same issue when connected to my TB2 dock that connects to keyboard/external display/wacom/ethernet/speaker.
I now disconnect the TB2 dock from the MBP before I put it in sleep.
 

Fireball Dragon

macrumors 6502a
Nov 26, 2012
880
256
Chigwell, England
Not LG 4k. It's an old 24" Samsung 1200p monitor. No sleep/wake issue if disconnecting the TB2 dock before wakes the MBP up.

Thanks.

I am using the LG 4K. I took out my external hard drive, but left the dock plugged in still. Just tried to put the MacBook to sleep and same issue.

Just to confirm, you actually removed the dock as well, right? Would it make a difference if the dock was still plugged in, but no devices in the actual dock?
 

bendrumin

macrumors 6502
Jun 23, 2009
357
61
Minneapolis
Thanks.

I am using the LG 4K. I took out my external hard drive, but left the dock plugged in still. Just tried to put the MacBook to sleep and same issue.

Just to confirm, you actually removed the dock as well, right? Would it make a difference if the dock was still plugged in, but no devices in the actual dock?

I have the same issue with my LG 4k and my 15 inch toucher pro.
 

derive2

macrumors newbie
Dec 19, 2016
13
1
nTB with zero problems.

Clamshell Mode
USB C 1: Bqeel Hub with Power Adaper connected, USB-A to my BenQ 3200PT Hub (BenQ hub always with Logitech MX dongle and sometimes USB 2.0 2,5HD Drive)
USB C 2: USB-C --> Displayport Cable to my BenQ 3200PT

Have you tried different USB-C ports? The 2 Right ones are Slower Then the left ones
 

Fireball Dragon

macrumors 6502a
Nov 26, 2012
880
256
Chigwell, England
I have the same issue with my LG 4k and my 15 inch toucher pro.

Thanks for that. I thought it was just me until I found this thread (and there is another thread, too). Not sure if I should return the monitor (have until 8th Jan) and just go for the LG 5K. I think I read somewhere the issue may be due to the 4k monitor being 65W and the 5k being 85W. I'll find the quote and post back.

nTB with zero problems.

Clamshell Mode
USB C 1: Bqeel Hub with Power Adaper connected, USB-A to my BenQ 3200PT Hub
USB C 2: USB-C --> Displayport Cable to my BenQ 3200PT

Have you tried different USB-C ports? The 2 Right ones are Slower Then the left ones

Thanks for confirming that. Seems like TB are the affected ones then :(
[doublepost=1482530057][/doublepost]https://support.apple.com/en-us/HT207447

"The UltraFine 4K won't fully power a MacBook Pro (15-inch, 2016), which requires 85W. If you try to charge your 15-inch MacBook Pro through the display, your notebook's battery will be utilized as well. To fully power your MacBook Pro and charge its battery, connect your 15-inch MacBook Pro to its Apple 87W USB-C power adapter when you use it with the UltraFine 4K."
[doublepost=1482530114][/doublepost]So Apple are proposing to use the provided power adapter with the LG 4K display? No thank-you; one of the huge reasons for getting such a display was to be able to use a single cable system!
 

bendrumin

macrumors 6502
Jun 23, 2009
357
61
Minneapolis
Thanks for that. I thought it was just me until I found this thread (and there is another thread, too). Not sure if I should return the monitor (have until 8th Jan) and just go for the LG 5K. I think I read somewhere the issue may be due to the 4k monitor being 65W and the 5k being 85W. I'll find the quote and post back.



Thanks for confirming that. Seems like TB are the affected ones then :(
[doublepost=1482530057][/doublepost]https://support.apple.com/en-us/HT207447

"The UltraFine 4K won't fully power a MacBook Pro (15-inch, 2016), which requires 85W. If you try to charge your 15-inch MacBook Pro through the display, your notebook's battery will be utilized as well. To fully power your MacBook Pro and charge its battery, connect your 15-inch MacBook Pro to its Apple 87W USB-C power adapter when you use it with the UltraFine 4K."
[doublepost=1482530114][/doublepost]So Apple are proposing to use the provided power adapter with the LG 4K display? No thank-you; one of the huge reasons for getting such a display was to be able to use a single cable system!
Ive been doing that anyways, I have a TON of gpuRestarts and sleep wake failures. What I think it is happening, is the fast switching from the dedicated to the other GPU with the 4k. When the monitor is plugged into a MacBook Pro, the higher graphics are used automatically. This could be the cause, maybe its switching fast or something to do with monitor standby mode? Just an idea...
 

Fireball Dragon

macrumors 6502a
Nov 26, 2012
880
256
Chigwell, England
Ive been doing that anyways, I have a TON of gpuRestarts and sleep wake failures. What I think it is happening, is the fast switching from the dedicated to the other GPU with the 4k. When the monitor is plugged into a MacBook Pro, the higher graphics are used automatically. This could be the cause, maybe its switching fast or something to do with monitor standby mode? Just an idea...

You could be right; that sounds like a valid hypothesis. I had a 15" TB MacBook (same specs) in November and returned it as I got kernel panic restarts everyday. I thought the MacBook was faulty.

Now I have finally got another one earlier this week, I am having sleep-wake issues. The report, however, doesn't seem as extensive.
[doublepost=1482530765][/doublepost]Can I also ask, do you notice any benefits from using the Apple power plug as well as power from the LG 4K? My battery is always showing at 100% and source as power adapter, and I am only using the monitor.
 

bendrumin

macrumors 6502
Jun 23, 2009
357
61
Minneapolis
You could be right; that sounds like a valid hypothesis. I had a 15" TB MacBook (same specs) in November and returned it as I got kernel panic restarts everyday. I thought the MacBook was faulty.

Now I have finally got another one earlier this week, I am having sleep-wake issues. The report, however, doesn't seem as extensive.
[doublepost=1482530765][/doublepost]Can I also ask, do you notice any benefits from using the Apple power plug as well as power from the LG 4K? My battery is always showing at 100% and source as power adapter, and I am only using the monitor.
I just like having a full battery, I do a lot of high energy things with photoshop and gaming, plus running a terminal command constantly is killing my battery :) (too cheap to buy an ecobee for home kit so I have home bridge and my nest)
 

Fireball Dragon

macrumors 6502a
Nov 26, 2012
880
256
Chigwell, England
I just like having a full battery, I do a lot of high energy things with photoshop and gaming, plus running a terminal command constantly is killing my battery :) (too cheap to buy an ecobee for home kit so I have home bridge and my nest)

Ah, okay. I get what you are saying. I'm not sure any of my tasks would deplete the battery quicker than the LG monitor can handle (for now).

This is all quite disappointing after spending so much money.
 

SoloXis

macrumors newbie
Dec 22, 2016
22
5
SG
What I think it is happening, is the fast switching from the dedicated to the other GPU with the 4k. When the monitor is plugged into a MacBook Pro, the higher graphics are used automatically. This could be the cause, maybe its switching fast or something to do with monitor standby mode? Just an idea...

Sounds like a possibility.

I just encountered another crash. If it helps, here's what I did:
  1. Was using my MBP on battery the night before. Quitted all my apps before shutting the lid and putting it to sleep.
  2. In the morning, I placed my MBP on a stand, plugged in only the 4K LG monitor, and turn on the power. Heard a spark (wth?). MBP in clamshell mode.
  3. You can tell that the screen is on but it's only showing black. No messages, nothing.
  4. While connected to the monitor, I opened up my MBP. I can also tell that the screen is active, but blank.
  5. Force-restarted the MBP and it took a particularly long time to startup. Mouse cursor appears during loading screen :)apple: + loading bar). That isn't normal, is it?
  6. Back to normal operation.
I'm honestly worried if these crashes would cause permanent damage to the MBP...:(
 

hollandog

macrumors regular
Mar 13, 2014
226
82
Thanks.

I am using the LG 4K. I took out my external hard drive, but left the dock plugged in still. Just tried to put the MacBook to sleep and same issue.

Just to confirm, you actually removed the dock as well, right? Would it make a difference if the dock was still plugged in, but no devices in the actual dock?


Yes the dock is completely disconnected with the MBP. I still have my 2011 13" MBP it has no issues connecting to the TB2 dock 24/7.
 

Fireball Dragon

macrumors 6502a
Nov 26, 2012
880
256
Chigwell, England
  1. In the morning, I placed my MBP on a stand, plugged in only the 4K LG monitor, and turn on the power. Heard a spark (wth?). MBP in clamshell mode.
I'm glad you mentioned the spark issue. I have also noticed a static kind of spark noise when disconnecting after using for a few hours.

On the 2016 15" MBP I returned last month, I even noticed some visible sparks!!!

I have ordered a 5k LG now which I am hoping will come before the return window for the 4K (8th Jan).

Such a shame as I really liked the 4K display. If a fix comes out before though, I may just keep it.

Like you, I'm very concerned about long-term
damage. I just d/c now from the display before putting my MBP to sleep.
 
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