Administrators Hervé Posted October 17, 2022 Administrators Share Posted October 17, 2022 Your graphics settings are perfectly Ok but your screen is not detected. IOREg shows no screen at all. Are you able to identify the type of connector for that built-in screen? Link to comment Share on other sites More sharing options...
Hack.intosh Posted October 17, 2022 Author Share Posted October 17, 2022 This is not a common issue I’ve come across. Could you please help me identify the type of connector with a particular guide or reference point? I can work out the rest Link to comment Share on other sites More sharing options...
Hack.intosh Posted October 17, 2022 Author Share Posted October 17, 2022 Tried this and a few others but didn't work. Link to comment Share on other sites More sharing options...
Administrators Hervé Posted October 18, 2022 Administrators Share Posted October 18, 2022 Forget about con1 and con2, these would typically be for eternal displays. You'll probably have to experiment with type and flags of con0; for instance, you may simply try to set con0 to DP/mDP framebuffer-con0-enable 1 NUMBER framebuffer-con0-type 00040000 DATA Do you have any BIOS option to set DVMT at all? Did you try to boot without fbmem + stolenmem patches? Link to comment Share on other sites More sharing options...
Hack.intosh Posted October 19, 2022 Author Share Posted October 19, 2022 There is non option to set DVMT in the bios. I've also tried without fbmem and stolenmem patches. I've also tried the above as you've mention AND with framebuffer-con0-type | 02000000 | DATA. All without success. Link to comment Share on other sites More sharing options...
Hack.intosh Posted November 1, 2022 Author Share Posted November 1, 2022 @Hervé I've finally have managed to get full GA working with 0x05001C59 and external monitor using type-c to HDMI port. However, Built-in display is blank - I am still able to change brightness with fn keys and sys info show the builtin display is detecting resolution at 28" (1600x1200). Still not having any luck with the connector type... 15" Surface Book 2 15” PixelSense™ Display Screen: 15” PixelSense™ Display Resolution: 3240 x 2160, (260 PPI) 10 point multi-touch G5 Aspect ratio: 3:2 Contrast ratio: 1600:1 SB15 04.ioregopencore-2022-11-01-021006.txt.zip 1 Link to comment Share on other sites More sharing options...
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