exdiru Posted March 29, 2018 Share Posted March 29, 2018 Hi guys, I am fairly new with Hackintosh and was able to make my Dell Latitute E7440 into a Hackintosh by following the guide by Jake Lo here, which was very detailed and well written. Currently, I am running OS X v.10.12.6, and an SMBIOS of Macbook Pro (11, 1). I am just encountering some issues with my Mini Display Port, wherein if I plugged in a monitor in the MiniDP, it would cause my laptop to restart indefinitely. I am using a MiniDP to HDMI adapter to do this. Also, I noticed that if I first plugged in a monitor through the HDMI port, then plugged in another monitor through the MiniDP, it doesn't cause a restart. I attached the kexts in my Library/Extensions, and EFI/CLOVER/kexts. Hoping you guys could point me to the correct direction. Thanks! Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 29, 2018 Moderators Share Posted March 29, 2018 Never tested miniDP to HDMI, but have you tried HDMI to HDMI? Link to comment Share on other sites More sharing options...
exdiru Posted March 29, 2018 Author Share Posted March 29, 2018 Hi Jake Lo, Thanks for the response. Yes I have tried HDMI to HDMI, and it works alright. It only restarts when I use a single external monitor connected through the MiniDP - HDMI adapter. Could it be the adapter? I'm using something like this. Its not that much of a deal breaker for me as I could just do this steps to prevent the restarts: Connect external monitor through HDMI to HDMI. Connect the other external monitor through the Mini Display Port using a MiniDP - HDMI adapter. Once I did those steps, it works alright. But once I removed the HDMI to HDMI external monitor, and left the MiniDP monitor connected, it goes into the restart cycle. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 29, 2018 Moderators Share Posted March 29, 2018 What were you expecting to achieve by converting HDMI to minDP? I'll see if I could find an HDMI to miniDP adapter to test and see if I encounter the same issue. Will update tomorrow. Getting late here Link to comment Share on other sites More sharing options...
exdiru Posted March 29, 2018 Author Share Posted March 29, 2018 Well my monitor setup before while in Ubuntu Gnome was: 1. Laptop monitor, 2. External monitor connected via HDMI Port, 3. Another external monitor connected via the Mini Display Port using a MiniDP - HDMI adapter. I just had some HDMI cables lying around and a MiniDP - HDMI adapter thats why it resulted in that setup. Alright, let me know if I could help in some way. Again, its really not that much of a deal breaker for me, just thought that I did something wrong in my setup. Thanks! Link to comment Share on other sites More sharing options...
Administrators Hervé Posted March 29, 2018 Administrators Share Posted March 29, 2018 The E6440 cousin crashes if you plug an HDMI cable without having previously patched the Azul Framebuffer. Could be the same for this mini-DP port on the E7440. You can refer to my HD4600 patching guide and, for DP output, post #2. 2 Link to comment Share on other sites More sharing options...
HaraldRT Posted March 29, 2018 Share Posted March 29, 2018 I have the same problem on my E7240. The HDMI port is working fine but when i try to use the DP the system restarts. I followed the the same guide as exdiru. All i have dicovered is that changing ig-platform-id in the DSDT.aml changes the behaviour. I had a config with working but distorted DP which only used the same resolutiohn as my internal screen. The Bootpack for Dell E7440 configures the ig-platform-id. This blocks any changes from config.plist. I don't know enough about dsdt patching for intel-graphics to patch the dsdt.aml myself. Al i was able was playing which ig-platform-id. I will try different values, but i need the notebook an have not as much time as i like to solve this problem. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 29, 2018 Moderators Share Posted March 29, 2018 Confirmed the issue. Thanks for Hervé's reminder, I added a new patch to fix the issue. Open Config.plist with Clover Configurator Next to Kernel and Kext Patches, under kextToPatch, create a new patch by clicking on the + Name* = AppleIntelFramebufferAzul Find* = 02040900 00040000 87000000 Replace* = 02041200 00040000 87000000 Comment* = DP-Audio 1 Link to comment Share on other sites More sharing options...
exdiru Posted March 29, 2018 Author Share Posted March 29, 2018 That solved it. Wow, thanks a lot! Link to comment Share on other sites More sharing options...
Recommended Posts