snitron Posted May 2, 2020 Share Posted May 2, 2020 Hello everyone! I'm trying to connect a second screen via HDMI to my new laptop (Intel Core i7 97 50H, nVidia GeForce GTX 1650 (Intel UHD 630 in use), 16 GB RAM, OpenCore 0.5.7). But when I connect the HDMI cable, the laptop screen goes blank for a few seconds, then it lights up, but the second monitor is still turned off. Could you help me? EFI (3).zip Link to comment https://www.insanelymac.com/forum/topic/343664-dual-monitor-on-intel-uhd-630-on-laptop-asus-vivobook-x571gt-bq037/ Share on other sites More sharing options...
snitron Posted May 3, 2020 Author Share Posted May 3, 2020 13 hours ago, Hervé said: Using IORegistryExplorer, observe your iGPU/UHD 630 output ports when you hook your HDMI display to your Hack. If you do not see anything, this could mean that the HDMI output is actually wired to the Turing dGPU, in which case you're most likely screwed. If you see some changes under the output ports, you may simply need to patch your corresponding CFL framebuffer port for HDMI output. Thank you for your response! I have already checked in Windows: my external and internal monitors are connected to iGPU. Could you explain to me, how exactly I should check in IORegistryExplorer and pacth? With WEG? I'm a beginner in framebuffer patching... Link to comment https://www.insanelymac.com/forum/topic/343664-dual-monitor-on-intel-uhd-630-on-laptop-asus-vivobook-x571gt-bq037/#findComment-2720656 Share on other sites More sharing options...
snitron Posted May 3, 2020 Author Share Posted May 3, 2020 (edited) 14 hours ago, Hervé said: Using IORegistryExplorer, observe your iGPU/UHD 630 output ports when you hook your HDMI display to your Hack. If you do not see anything, this could mean that the HDMI output is actually wired to the Turing dGPU, in which case you're most likely screwed. If you see some changes under the output ports, you may simply need to patch your corresponding CFL framebuffer port for HDMI output. Here is what happens when I connect/disconnect HDMI (adds "display0"): Spoiler Edited May 3, 2020 by snitron Link to comment https://www.insanelymac.com/forum/topic/343664-dual-monitor-on-intel-uhd-630-on-laptop-asus-vivobook-x571gt-bq037/#findComment-2720662 Share on other sites More sharing options...
snitron Posted May 3, 2020 Author Share Posted May 3, 2020 15 minutes ago, Hervé said: Obviously, it's not the FB@0 with a display0 & AppleBacklightDisplay that you need to watch because that's your built-in LCD... Nothing else is going to be listed there! You need to observe your other framebuffer ports: FB@1, FB@2, etc. If an external display gets connected and detected, it'll be listed a AppleDisplay under another display0. Does it mean, that I can't connect external display at all? Link to comment https://www.insanelymac.com/forum/topic/343664-dual-monitor-on-intel-uhd-630-on-laptop-asus-vivobook-x571gt-bq037/#findComment-2720740 Share on other sites More sharing options...
snitron Posted May 3, 2020 Author Share Posted May 3, 2020 Just now, Hervé said: If you do not see anything appear under the other FB ports, then it's highly likely that HDMI is wired to the dGPU as suggested before. Hmmm, bad news... Should I buy USB-C to HDMI cable to connect? Should it hellp me? Link to comment https://www.insanelymac.com/forum/topic/343664-dual-monitor-on-intel-uhd-630-on-laptop-asus-vivobook-x571gt-bq037/#findComment-2720743 Share on other sites More sharing options...
snitron Posted May 3, 2020 Author Share Posted May 3, 2020 2 minutes ago, Hervé said: Possibly, I could not possibly guarantee it. You should try and pop the question of output ports individual connectivity to Asus support if there is such a thing. Thank you for your help. But sceen is blinking when I connect the cable! It's strange... Link to comment https://www.insanelymac.com/forum/topic/343664-dual-monitor-on-intel-uhd-630-on-laptop-asus-vivobook-x571gt-bq037/#findComment-2720746 Share on other sites More sharing options...
snitron Posted May 3, 2020 Author Share Posted May 3, 2020 14 minutes ago, Hervé said: Possibly, I could not possibly guarantee it. You should try and pop the question of output ports individual connectivity to Asus support if there is such a thing. And this tool shows that hdmi connected ti iGPU (likely) Link to comment https://www.insanelymac.com/forum/topic/343664-dual-monitor-on-intel-uhd-630-on-laptop-asus-vivobook-x571gt-bq037/#findComment-2720750 Share on other sites More sharing options...
snitron Posted May 3, 2020 Author Share Posted May 3, 2020 2 minutes ago, Hervé said: I gave you the pointers, rest is up to you; 'can't do all the hard work for everyone! Of course. Thank you very much! Link to comment https://www.insanelymac.com/forum/topic/343664-dual-monitor-on-intel-uhd-630-on-laptop-asus-vivobook-x571gt-bq037/#findComment-2720754 Share on other sites More sharing options...
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