Jump to content
Welcome to InsanelyMac Forum

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.

Sign in to follow this  

Dual display problem

3 posts in this topic

Recommended Posts

I have just finished updating to mavericks but am having a slight problem. I have a gigabyte z77n motherboard and use hd 4000 integrated graphics. One hdmi is connected to a monitor and the other hdmi to a tv. When only one is connected everything is fine but when I connect the second hdmi the screens go crazy. The image splits and is made of horizontal lines. Any ideas on how to fix this?

Share this post

Link to post
Share on other sites

Macbook Pro Retina Late 2012, Mavericks 10.9 DP2, HDMI Output to TV Samsung 46" FullHD


Same Problem when connecting the HDMI cable with the Macbook HDMI port. Screen starts flickering, is splitted into horizontal lines. Mouse cursor is not there where it's assumed to be. Clicking and setting some options in Multiple Display Options impossible.  

Hope they'll fix that in DP3, as i can't use TV as second screen at the moment.

Share this post

Link to post
Share on other sites



The MacBook pro retina is early 2013 ;) and I have no problem with the HDMI or dp to VGA. I have tried on my 66" HDTV and video projector.


You should try to switch from hd4000 to the NVidia 650m? but my mbp was using the hd4000.


Good luck

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By alex_10
      I've been running High Sierra (Currently 10.13.3) on VMWare Player 12.5.9.
      I'm running it on a Dell XPS 15 9560 with the 4k screen.
      Currently I'm able to run OSX in either Native 4k resolution, or scaled to 1080p.
      I wanted to know if it was possible to add a 1440p scaled mode? Right now if I force 1440p resolution using VMWare tools, I simply get a smaller window with the virtual machine. So, as I understand, I need to add a HiDPI version of the resolution.
      Can anyone lend a helping hand?
      Thank you!
    • By spectra
      Hi people, can someone help to put my HDMI sound working? I already tried different methods and I can't figure a way to fix this problem.   And another question, someone knows why the HDMI port just work if i use macbook pro 14,2 on smbios? Because my hardware is much more similar to 14,3.    
      thanks guys
      My system dump
      DarwinDumper_3.0.4_01.02_12.24.51_MacBookPro14,2_AMI_X64_4392_High Sierra_17D47.zip
    • By zafirofx
      Hi everybody. I can't install my graphics card on my Hackintosh. I've tried several methods and no one of them work, when I go to the tab "About this Mac" it says on Display that I have a 3MB screen and I don't have 1920x1080 resolution.I'm a beginner here in the Hackintosh world so please be patient with me. Hope you can help me. Thank you. Also I'm uploading my Clover folder.
    • By grumpycat1984
      I am doing it under Sierra via VM and system refuses to do this (install to apps), also there is no ption to "buy" El Capitan from store.
      If someone give me advice how to make it run I will be very glad.
    • By iammodus
      Hello there,
      a while back I tested El Capitan on an old computer, and had a pleasant first impression. So, I decided to take a spare hard drive and install EC using Clover on my main PC.
      The installation went fine, no problem. [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] ran fine, installed all kexts OK.
      I still don't have the Wi-Fi kext (TL-WN722N), apparently someone did one but I have to build it myself. I'll get to that on another moment.
      Now, the main issue I'm having is getting both displays to work. Unfortunately, both displays turn out to have only VGA input.
      So, I have an i7-4790, with Intel HD4600 integrated graphics, plus a discrete Gigabyte GTX 650. Because the discrete card only has one VGA out, I need to enable the iGPU too in order to be able to use the second port. On Windows, this works fine. Both displays get along without issues.
      OS X is a different story though. Only the GTX 650 works. It has full hardware acceleration so that's no longer an issue.
      I'm trying to get the integrated graphics to work at the same time, so I can have both displays operative just like Windows.
      Things I've tried:
      - FakePCIID
      - IGPlatformID
      - Taking out the discrete GPU. It hangs at boot. Only works in safe mode, but of course that's no use.
      - Setting iGPU as Primary, and here's where things get really weird. The computer boots (Apple logo with loading bar) on the HD4600's monitor, but then this display freezes and the login screen appears on the 650's screen. I attached a screenshot in which I try it with verbose mode, but mind you a normal boot is no different. It really seems like the OS just wants the NVIDIA GPU as primary regardless of my Clover settings.
      So, any ideas on how to get this working?