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Found 6 results

  1. I recently acquired a Samsung U28E510 monitor (4K UHD) for my hackintosh and had a hard time finding the information I needed to get it working with my integrated Intel HD 4600 graphics (desktop H97 chipset with i7-4790s) at full resolution. This post will share how I got it working. As a new hackintosher, a lot of the information I found was confusing because it assumed I knew how the pieces fit together, I was using Sierra 10.12.6 (iMac15,1 SMBIOS) and already had the HD 4600 working with full acceleration on my 1080p monitor. When I first plugged in the new monitor, I could get at most 2560x1440 @ 60Hz from MacOS using the DisplayPort cable that came with the monitor. Using a Linux Live USB, I could get 3840x2160 @ 60Hz so I knew the hardware was working and capable. My old config used the kexts Lilu, Shiki and IntelGraphicsFixup via Clover injection. I was injecting the ig-platform-id 0x0d220003, and on the desktop "<Apple Icon> -> About This Mac" showed that my graphics were allocated 1536MB. I added CoreDisplayFixup.kext to avoid the pixel clock limit in the CoreDisplay framework. Since that required a newer version of Lilu, I downloaded updated source for Lilu, IntelGraphicsFixup and Shiki and rebuilt all of those along with CoreDisplayFixup. The hardest part for me to understand, was why MacOS wouldn't offer me the option to go above 1440p resolution. I could get to 2160p with SwitchResX, but it wouldn't stick across reboots and I was seeing a phantom display on my system when I used that app. I spent a couple of days trying various things, and upgraded to High Sierra 10.13.1 along the way. I eventually stumbled across a post at RampageDev, which explained how the magical ig-platform-id value is used -- which ended up being the key to my problem! I don't know if the bits in 0x0d220003 are important, but for my purposes that value is used as a key to a table in AppleIntelFramebufferAzul.kext which is used to initialize the HD 4600. This includes attributes such as buffer sizes and memory allocations which are needed for large, 4k displays. The link helped me understand the contents and format of that table, which in turn helped me understand the problem. By patching the kext via Clover, I could have MacOS configure the graphics hardware so that it would work as I wanted. The patch itself is added to config.plist -> KernelAndKextPatches -> KextsToPatch (it's in an <array>): <dict> <key>Comment</key> <string>Framebuffer for 4K display</string> <key>Find</key> <data> AwAiDQADAwMAAAACAAAwAQAAAAAAAABgmRQ= </data> <key>Name</key> <string>AppleIntelFramebufferAzul</string> <key>Replace</key> <data> AwAiDQADAwMAAAAEAAAgAgAAAAAAAACAmRQ= </data> </dict> I won't go into the grisly details here; if you're technical and want to understand, you can figure it out from the patched values. Basically, I'm increasing three values to accommodate the larger display: The RAM allocation The framebuffer memory size The VRAM allocation Once I enabled this patch in Clover and added CoreDisplayFixup.kext, I was able to boot into glorious 4K UHD. I also see the retina resolutions in the display settings. It's possible that I did not need to change all three fields. I changed them all on the first try, and things seem to be working well. I would be happy to update this post if an expert can tell me a better way to do it. Note that this does allocate 2GB of RAM for the Intel graphics, but that's fine with me since I have 16GB and plan to upgrade to 32GB anyway. I'll probably end up getting a discrete GPU when I upgrade the RAM, but this patch helps me stay productive while I save for the upgrade. I suspect that this approach could be packaged into a Lilu plugin for those that prefer to do their patches from kexts rather than the Clover config. Similarly, some of the Lilu plugins I'm using could probably be implemented via Clover patches. At this point, I'm just happy to have something that works.
  2. bob321654984

    4k / UHD with Yosemite

    I have a Samsung 4k monitor hooked up to an Nvidia Geforce 760 in my Hackintosh via DisplayPort. If I leave the settings on 'Best for display', for some reason it goes into 1080p mode. If I put it in 3840x2160 resolution manually (which, for some reason I can only do using the screenresx third party app, the resolution isn't listed in the normal display settings), everything is absolutely tiny (buttons, menus etc). I had thought (and have seen screenshots) that there would be the ability to change the scaling of all the items within Yosemite, but the only way I can make everything readable (and even clickable without pico-adjustments of the mouse!) is by downgrading the resolution, which seems a bit pointless. Has anyone got 4k working as I was expecting, or have any suggestions that I could try to get this functionality somehow?
  3. The capability of outputting 4k@60Hz is possible on the high-end 15'' Haswell rMBP with Nvidia 750M. (Previously it used to be possible only on Windows via Bootcamp, but with the recent 10.9.3 beta releases now it is also possible on Mavericks) Whether lower-end Haswell rMBPs without a discrete graphics card, i.e. 13'' rMBPs with Iris and low-end 15'' rMBP with Iris Pro are capable of outputting 4K@60Hz on Mavericks or Windows is not known yet. There are conflicting Intel documents regarding Iris's and Iris Pro's capability of 4k@60Hz. Therefore I need someone's account who had a hands-on test with a Haswell rMBP without discrete card and a 4k 60Hz monitor and tried outputting this resolution at this refresh rate on Mavericks (as well as Windows via bootcamp if it is not capable on Mavericks)-- if it does 4k @ 60Hz on Windows, then this would prove that the card has such capability, and I would always hope that Apple will eventually make it also capable on Mavericks with a future update. Also, accounts from 13'' owners with Iris are preferable because if they can get 4k@60Hz on whichever OS, I will deduce that if Iris can do it, so can Iris Pro.
  4. The capability of outputting 4k@60Hz is possible on the high-end 15'' Haswell rMBP with Nvidia 750M. (Previously it used to be possible only on Windows via Bootcamp, but with the recent 10.9.3 beta releases now it is also possible on Mavericks) Whether lower-end Haswell rMBPs without a discrete graphics card, i.e. 13'' rMBPs with Iris and low-end 15'' rMBP with Iris Pro are capable of outputting 4K@60Hz on Mavericks or Windows is not known yet. There are conflicting Intel documents regarding Iris's and Iris Pro's capability of 4k@60Hz. Therefore I need someone's account who had a hands-on test with a Haswell rMBP without discrete card and a 4k 60Hz monitor and tried outputting this resolution at this refresh rate on Mavericks (as well as Windows via bootcamp if it is not capable on Mavericks)-- if it does 4k @ 60Hz on Windows, then this would prove that the card has such capability, and I would always hope that Apple will eventually make it also capable on Mavericks with a future update. Also, accounts from 13'' owners with Iris are preferable because if they can get 4k@60Hz on whichever OS, I will deduce that if Iris can do it, so can Iris Pro.
  5. Hello everyone! I installed OS Sierra 10.12.6 on a Lenovo y50-70 with 4k monitor following the tonymacx86 guide (this: https://www.tonymacx86.com/threads/guide-lenovo-y50-uhd-or-1080p-using-clover-uefi.232960/ ). All is OK (except the bluetooth but I consider that a secondary problem) except that I can not absolutely activate the monitor! For example, I can connect an external monitor via HDMI and so doing everything OK. I would like to understand how to do it, does anyone have any idea? I have already set up the DVMT prealloc to 128mb with modified bios and installed coredisplayfixup in L / E but nothing. If I boot up setting clover id-ig 0x12345678 the monitor works but the graphics card is recognized only as 31mb and everything is slow, the web pages for example are unusable. I have an integrated intel hd4600 card. I hope you can help me, thank you so much in advance!
  6. Specifications Asus Z170 Premium Skylake i-6600K Nvidia GTX 960 Samsung 850 EVO 256 GB x 2 Samsung NVMe 950 Pro 256 x 1 G.Skill 32 GB 3000 MHz RAM 8 x 4 Samsung UHD monitor 4K@60Hz x 2 Let me start by answering these questions first. What is working? Graphics 4K @60 Hz Audio Bluetooth NVMe 1 Ethernet port WiFi including 5GHz (this was the best part) USB 3.1, 3.0, 2.0 All the front ports Audio, USB 3.0 x 2 AirPlay, AirDrop, iCloud, Continuity, Handoff, Facetime, iMessages, Appstore What else.... What is not working? There is only one small intermittent glitch with the 4K @ 60Hz. Sometimes, the computer boots into a black screen (no kernel panic). Just the monitors lose display port signal and they go to sleep mode. The fix: well, I just turn the settings to Display Port 1.1 in my monitor's settings before the system starts to boot. Once it boots, I just turn the setting back to DP version 1.2 in the monitor settings. I couldn't get iMac 17,1 SMBIOS to work . It gives me a black screen. 1 Ethernet port. AppleIGB was giving kernel panics. But I am using only one port anyways, so I don't care about this one. Attached Files Files to replace in EFI.zip : this contains the files from my EFI. It has a patched DSDT, patched kernel kexts for IOAPIC and USB, kexts, config and the 64BitUEFI drivers. Steps Follow the official guide for Sierra Public beta word to word step by step and get the USB ready with clover and the FakeSMC kext. Mount the EFI of USB using EFI Mounter v3. See the attached zip file "Files to replace in EFI.zip" and replace the files in USB's EFI with the ones in zip file. This will set up your SMBIOS to iMac 14,1. This is all you need to get started with the installation. Plug the USB in the USB 2.0 port (the green and red ports in the back). Turn on the computer and go to BIOS. Enter Advanced settings and load optimized defaults. Change the Secure Boot to Other OS Disable IOAPIC under PCH System Configuration. Set the Boot device under Boot tab to your USB EFI. Don't change the boot device by pressing F8. It always gave me the low memory error. Set the USB as first boot device in the boot order. This will get you started with installation. Once the installation is finished, WiFi should be working out of the box. Get the latest clover from sourceforge and install it like you did when creating the USB. I did not use any post installation utility because I wanted to understand how stuff works. Mount the EFI USB using EFI Mounter V3 and copy all the contents on your desktop. UNMOUNT IT AND REMOVE THE USB Mount the EFI of your HDD and replace the contents with the ones you copied on your desktop. This is all you need for a bare minimum setup of Sierra. Check if you can boot without the USB. Now lets get other stuff fixed. Get the KCPM Utility 6 first to manage kexts. Display-NVidia Get the latest web driver from NVidia's website. Install it and reboot. Audio I tried to use ALC1150 from toleda for Sierra but it did not work. So I installed the good old VoodooHDA. Download, install and reboot and the audio should be up. Ethernet The motherboard has 2 ethernet ports. I tried to use AppleIGB.kext but it gave me kernel panics again and again. So I used AppleIntelE1000E.kext . Install using the KCPM and rebuild the cache. Reboot and you have 1 ethernet port without kernel panic. I didn't bother about the other port Bluetooth Get the Bluetooth kext from here and install using KCPM. Rebuild the cache, reboot and voila you have bluetooth. NVMe I used Rehabman's NVMe patch from github. The instructions are very simple and available in the read me. Once you have the new kext created, install it using the KCMP. DON'T REBOOT. First delete the IONVMeFamily.kext (see the read me too) from /System/Library/Extensions. Rebuild cache and reboot. Appstore Fix This was a new problem. Appstore won't let me login. This was easy to fix. Remove all the network cards from system preferences. Then go to /Library/Preferences/System Configuration and delete the network plist. Reboot. Add the Ethernet card first in the system preferences. Make sure you add the Ethernet card as En0. Add WiFi and thats it. Important: I spent nights trying to solve the low memory error. It sometimes worked and suddenly it would give me the error again. What fixed this was setting the boot device order and putting USB on top instead of changing the boot device on the fly as I mentioned in the steps above. This is weird, I know. But it worked. I tried atleast 10 times to make sure that this was the cause/fix and it worked. Enjoy your Sierra! Files to replace in EFI.zip
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