[Solved] Sierra Dual display issues

[gilmar22]

Hello guys!!
Sorry if I'm posting in wrong section, and my English.
I've made a hackintosh and it's working fine, but one thing, I have a dual display setup, one 27" HDMI and one 19" VGA with DP adapter, when my PC starts, only the VGA display have the signal, and the HDMI display only receives signal after boot, but after boot the two displays is taking too much time to display the desktop.
The process is: Starts the PC, load Clover on second display, boot on the second display, the apple logo fade out, the two displays receives signal, but stays 8-10 secs with black screen and after shows the desktop.

 

[bmoag]

I do not know if this applies to you.
I am not sure if you are describing what I consider normal behavior or a real problem.
I run a 4k display and a 1920 display as they have different gamuts (useful in Photoshop for that and other reasons) both connected via DP.
I consider the 4k display primary.
If both monitors are on at boot both OSX and Windows see the lower resolution monitor as primary. Both OSes. Switching the cables makes no difference.
To get around this I make sure the lower resolution monitor is switched off at boot--I do not need to use it all the time anyway.
Even doing it that way Windows still sees the 4k monitor as number 2 although it is checked as primary. It works/who cares.
In the past I had a setup with one monitor connected via DP and one with HDMI. OSX would see the HDMI monitor as primary and Windows would see the DP monitor as primary.
In that instance only physically disconnecting the HDMI cable would get OSX to see the DP connected monitor as primary at boot (I preferred that to altering configuration files which can cause unexpected other problems) so that set up did not last long.
Your experience seems comparable to mine.
It is hardly a daily mental and physical agony to have to push a button on a monitor.
In both Windows and OSX there is a slight lag (I have but one of the same nVidia cards as you) before the secondary monitor stabilizes after being turned on after Windows/OSX has stabilized on the primary monitor. It rapidly shows an OSX or Windows desktop, not the Windows sign-in or Apple logo, but it takes a few seconds to go from blank to stable (3-5?)--its a monitor, not a tablet or cell phone.
To conclude: my experience in both Windows and OSX is that booting with only one monitor powered solves problems.
If you are not using the nVidia drivers in OSX that may be a solution as the OSX video drivers are kind of awful.
Unfortunately SLI may be a problem as that is foreign to OSX. You might have to remove one of the nVidia cards to see if that solves what you see as your problem.

 

[gilmar22]

I do not know if this applies to you.
I am not sure if you are describing what I consider normal behavior or a real problem.
I run a 4k display and a 1920 display as they have different gamuts (useful in Photoshop for that and other reasons) both connected via DP.
I consider the 4k display primary.
If both monitors are on at boot both OSX and Windows see the lower resolution monitor as primary. Both OSes. Switching the cables makes no difference.
To get around this I make sure the lower resolution monitor is switched off at boot--I do not need to use it all the time anyway.
Even doing it that way Windows still sees the 4k monitor as number 2 although it is checked as primary. It works/who cares.
In the past I had a setup with one monitor connected via DP and one with HDMI. OSX would see the HDMI monitor as primary and Windows would see the DP monitor as primary.
In that instance only physically disconnecting the HDMI cable would get OSX to see the DP connected monitor as primary at boot (I preferred that to altering configuration files which can cause unexpected other problems) so that set up did not last long.
Your experience seems comparable to mine.
It is hardly a daily mental and physical agony to have to push a button on a monitor.
In both Windows and OSX there is a slight lag (I have but one of the same nVidia cards as you) before the secondary monitor stabilizes after being turned on after Windows/OSX has stabilized on the primary monitor. It rapidly shows an OSX or Windows desktop, not the Windows sign-in or Apple logo, but it takes a few seconds to go from blank to stable (3-5?)--its a monitor, not a tablet or cell phone.
To conclude: my experience in both Windows and OSX is that booting with only one monitor powered solves problems.
If you are not using the nVidia drivers in OSX that may be a solution as the OSX video drivers are kind of awful.
Unfortunately SLI may be a problem as that is foreign to OSX. You might have to remove one of the nVidia cards to see if that solves what you see as your problem.

Thanks for the reply, but already tested with only one card, and the same issue is occouring, both displays shows desktop too fast if the other is unplugged, if one is turned off didn't solves.

 

[gilmar22]

Someone can help me?

 

[gilmar22]

The problem was solved with the update tô 10.12.5