Recent content by Seemog

  1. Seemog

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    UPDATE: Some days ago I asked for help. This week I received my new purchase: NVIDIA Quadro NVS510 (4x displays). I put it on my system and ... I got all my monitors working (3x), also on boot :). But I did a fresh macOS Mojave install, following this guide, step by step, and everything is...
  2. Seemog

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    I'm from Portugal. Buying from US is not an option, unfortunately :( , because of customs taxes. I will try to buy an Nvidea Quadro NVS510 (4x monitor and low power consuption, but future support in risk ?!?!?) or AMD Rx570/580 (4x monitor, more power consuption, but better future compliance). I...
  3. Seemog

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    Thank you @craighazan for having shared your config. I compare with my config file, and they are 99% identical. However, I use your config in my machine and still no solution.
  4. Seemog

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    Change it -- still not working No. Both my monitors have 2x HDMI 1x VGA (this last one I don't use) I use cables HDMI |---------|DP
  5. Seemog

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    No I make it worst... 1st I tried some other cables and adapters that I've. Not many, but no difference. 2nd I realize that I had BIOS version A24 (I've updated it some time ago). So I updated to last one: A25. After this, single monitor boot is OK, but now I connect the second monitor and it...
  6. Seemog

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    I try and change SMBIOS from 14,2 to 15,1. Still not working
  7. Seemog

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    I'm using straight DP to DP connections. edit: Sorry DP to HDMI (single cable, no adaptors), since my monitor doesn't have DP ports (Benq GW2280)
  8. Seemog

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    Thank you @trs96 . I'll try to contact @nicksoph .
  9. Seemog

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    I did that, but not on boot screen. I change the SMBIOS from 14,2 to 14,3 directly in my config.plist file, and then rebooted. (did not redo the serial) The problem persists. Just single monitor boots. But after the boot I can connect 2 monitors and they work.
  10. Seemog

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    Hi, I've been using my hackintosh (in a Dell 9020) with default HD4600 graphic card, and Mojave 10.14.5. I use it for software dev stuffs (no need for advanced GPU). But I love to use 2 monitors. If I boot my PC with just one monitor connected and then after boot completed, connect the second...
Top