I've just migrated a MacBook Pro (15-inch, Late 2013) into a MacBook Pro (15-inch, 2019).
I had two monitors connected from VGA to DP into the late 2013 with no problem. They would wake up after I wake up my MacBook Pro from sleep.
Now I've connected these two from VGA to USB-C and they don't wake up from sleep. I have to unplug and plug them again.
What's wrong with it?
MacBook Pro 15”, macOS 10.14
Hi rafaelruizmunoz,
Thanks for using Apple Support Communities. It sounds like you’re having trouble with external monitors. I’m happy to help. To start, I suggest resetting the SMC:
How to reset the System Management Controller (SMC) on your Mac - Apple Support
You may also find some helpful information here:
Get help with video issues on external displays connected to your Mac - Apple Support
Let me know if that helps.
Take care.
USB-C is the name of the connector, ONLY.
It is very possible these adapters are inadequate for the job on a Mac with Thunderbolt-3 (as opposed to the simpler USB-3 ports offered on the early USB-C Macbooks.
The Apple adapter costs US$69, but if its does not do the job for you, you can return it. It is worth a try.
https://www.apple.com/shop/product/MJ1L2AM/A/usb-c-vga-multiport-adapter?fnode=8b
.
Your old adapters will not work with ThunderBolt-3.
What adapters are you using exactly?
Hello Allen A.
It didn't work.
When I put the MacBook to sleep, and wake it up, it won't remember the Display settings.
My display settings are:
MacBook screen scaled to 1440 x 900.
Screen1 rotated 90º
Screen2 as it is.
Arranged in a custom layout.
In the cases I've tested:
1) It works
2) It keeps the MacBook screen scaled but doesn't wake up Screen1 and Screen2
3) It wakes up Screen1 correctly, it doesn't wake up Screen2 and MacBook gets the default scale (1680x1050)
4) Possibly another combination of misconfiguration
What else could I do?
These really:
They work if I don't put my system to sleep (or if it sleeps for a short time, it works most of the times).
I've bought from the same shop for my previous MacBook Pro, VGA to Thunderbolt and never had a problem.
I've tried with different monitors and didn't work either.
And I've tried these adapters into a MacBook Pro 13'' and it works.
No, false alarm.
It didn't work :(
I'll give a try today and will post the solution.
rafaelruizmunoz,
Thanks for the additional information. I suggest making sure that your MacBook is updated:
How to update the software on your Mac
I also suggest restarting in safe mode and trying in a different user account to see if the settings remain the way you’ve changed them:
Use safe mode to isolate issues with your Mac - Apple Support
How to test an issue in another user account on your Mac - Apple Support
Cheers.
I've tried it all, and nothing worked. I've tried another user, guest user, safe boot.
These are some images detailed chronologically:
1) I sleep and wake up from sleep:
I have to unplug and plug the monitor that didn't wake up.
2) When both are switched on, the entire displays lose configuration:
3) I have to configure it manually again:
4) I put it to sleep and I wake it up from sleep:
One monitor is rotated back and the other is fine (sometimes it's the opposite)
5) I restart it
No monitor wakes up at login prompt or after logged in.
Sometimes only one of them wakes up (and the other is wrong)
And some others, it wakes up both, most of the times one or both are wrong
Resetting the NVRAM instead of the SMC worked as specified in https://apple.stackexchange.com/questions/85472/external-monitor-resolution-setting-is-lost-after-macbook-wakes-up-from-sleep
Thank you for the effort though
Monitors won't wake up after sleep
