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MacSierra 10.12.1 Public Beta 1 broke dual monitors
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You aren't alone. I'm having the same issue. specs below
MacBook Pro (Retina, 15-inch, Mid 2015)
2.5 GHz Intel Core i7
AMD Radeon R9 M370X
Bootcamp Win10 obviously still works, and the problem only popped up for me after installing 10.12.1 beta 1. Can't use more than 1 output port at once (1 thunderbolt + 1 HDMI won't work; which ever is plugged in first will take precedence)
I've tried reseting the PRAM & SMC, along with a bunch of other typical things.
MacBook Pro (Retina, 15-inch, Mid 2015)
2.5 GHz Intel Core i7
AMD Radeon R9 M370X
Bootcamp Win10 obviously still works, and the problem only popped up for me after installing 10.12.1 beta 1. Can't use more than 1 output port at once (1 thunderbolt + 1 HDMI won't work; which ever is plugged in first will take precedence)
I've tried reseting the PRAM & SMC, along with a bunch of other typical things.
Crazy so you started a new job and they gave you a laptop with the beta OS installed? or did you install it yourself?
Oh no, the laptop is mine. They're all PC and I haven't use one in years. They supplied the displays.
If the beta isn't showing up in the mac app store you can still get it with direct links in apple's developer forums.
But I don't like it when apple release stuff on microsoft's patch tuesdays. They know when microsoft's patch tuesday is. They could easily avoid it.
They also know many people now have multiple systems. It is annoying when updates for different systems come out the same day.
Also true if you only have apple's four systems macos, tvos, ios and watchos.
Do they think the world will stop for them and people will just spend their whole day updating their devices?
Nope. Many will stagger them forcibly. Disable automatic downloads - which you can do for windows too, by the way, despite a common misconception that you can't for windows 10. I agree though that microsoft are now making this more difficult than apple.
Then just update at most 1 system per day.
Of course the downside of this is sometimes you may end up missing some updates. For example when sierra golden masters came out, some of them only lasted less than a day before the next one came out. This problem is rare though.
Yessss it's working again with beta 4!!!YAY! It works again !
As I said before the direct links are in apple's developer forums.
Moderators here won't like it if you post them here though.
I think it's OK for public releases but apparently is a big no-no for betas.
So I got the links for the public beta 4 from the Apple Dev forums.. I've downloaded the 3 files necessary but I don't really get what they are talking about to install them.
For developer beta
To install from same partition
1. Start update via mac app store
2. Move packages into /Library/Updates/031-85930
3. Restart.
4. Go to updates tab in mac app store and click update
For public beta
Same instructions as for developer beta except that if installing from the same partition they go into folder /Library/Updates/031-85931
Um, what? #1 says to go start the update from the Mac app store.. problem is, I see no update is available. If there was an update available, why would I do 2-4 when I can just let it download and apply the updates automatically?
So now I have FirmwareUpdate.pkg, FullBundleUpdate.pkg and MacOSUpd10.12.1PublicBeta.pkg and have no idea what to do with them. I don't want to run them individually because I have no idea what order they need to run as and I don't want to risk ruining an expensive laptop.
For developer beta
To install from same partition
1. Start update via mac app store
2. Move packages into /Library/Updates/031-85930
3. Restart.
4. Go to updates tab in mac app store and click update
For public beta
Same instructions as for developer beta except that if installing from the same partition they go into folder /Library/Updates/031-85931
Um, what? #1 says to go start the update from the Mac app store.. problem is, I see no update is available. If there was an update available, why would I do 2-4 when I can just let it download and apply the updates automatically?
So now I have FirmwareUpdate.pkg, FullBundleUpdate.pkg and MacOSUpd10.12.1PublicBeta.pkg and have no idea what to do with them. I don't want to run them individually because I have no idea what order they need to run as and I don't want to risk ruining an expensive laptop.
There is another method in the apple developer forums which is better if it is not showing up in the mac app store, as in your case, which is to run them individually from a second partition with el capitan, carefully selecting the sierra partition on which to install them.
If you do this, do them in this order:
FullBundleUpdate.pkg
then
FirmwareUpdate.pkg
then
MacOSUpd10.12.1PublicBeta.pkg
This second method does not require it to be showing up in the mac app store at all.
Haha, are you "tywebbooooo" on the Apple forums? If so, ignore my reply from tfoster802002 lol
EDIT: Does it need to be run from El Capitan? I currently have 10.12.1 Beta 3 installed and just looking to go to Beta 4 to fix my external monitors.
EDIT: Does it need to be run from El Capitan? I currently have 10.12.1 Beta 3 installed and just looking to go to Beta 4 to fix my external monitors.
If you use the second method, it can be el capitan or an earlier version if your machine supports it. It won't work from sierra though because sierra won't let you run them individually.
Systems older than sierra DO let you run the packages individually, which is why the second method works.
El Capitan is better though because that one is still available on the mac app store, whereas the older ones have been deleted from the mac app store. The link for that is also in apple's developer forums if you need it.
By the way, I've used all 3 methods, i.e., update normally through mac app store, and both alternative methods in apple's developer forums - and what I have found is that installing them via the second partition is by far the fastest way to update sierra - so I tend to use this method more now even if it is showing up in the mac app store.
Did you use the second partiton method? That should work. I did it that way for 2 computers today.
The second partition doesn't have to be on the same machine though.
On my mbp (1TB) I had enough room to put the partition on the same machine.
But on my mba (128MB) there wasn't enough room for it so I ran it on a partition on an external hard drive instead.
Both ways work, but obviously would be a bit faster if the partition is on the same machine.
The second partition doesn't have to be on the same machine though.
On my mbp (1TB) I had enough room to put the partition on the same machine.
But on my mba (128MB) there wasn't enough room for it so I ran it on a partition on an external hard drive instead.
Both ways work, but obviously would be a bit faster if the partition is on the same machine.