Lametta17 Posted August 27, 2021 Share Posted August 27, 2021 I have successfully installed Big Sur. https://osxlatitude.com/forums/topic/15235-precision-5510-opencore-mojave-catalina-big-sur/?tab=comments#comment-107493 Unfortunately, the int. 4k display remains black. With an ext. monitor everything runs fine. Do you have a tip for me? config.plist.zip Moninfo.zip Link to comment Share on other sites More sharing options...
Lametta17 Posted August 27, 2021 Author Share Posted August 27, 2021 (edited) Based on the last config.plist, I tested in the order you specified. from point 3 I get a picture on the int. display. Yay. unfortunately the following things don't work now: the mouse is choppy. everything has become slower the PC freezes from time to time. the ext. monitor is no longer controlled. the brightness can no longer be controlled I also did point 4, but it didn't change anything. Thanks first for the great support. have already thought I have to sell him again. config.plist Edited August 27, 2021 by Lametta17 Link to comment Share on other sites More sharing options...
Lametta17 Posted August 28, 2021 Author Share Posted August 28, 2021 OK, I went through everything again. I have worked through your points again. I do not get it right. Only the int. display is working and the system is not running smoothly. Please again for support. config.plist Link to comment Share on other sites More sharing options...
Lametta17 Posted August 30, 2021 Author Share Posted August 30, 2021 OK, I went through everything again and did all steps again with the downloaded config.plist. Unfortunately with the same result. What is wrong? (by the way. how can I make a donate for your work). Link to comment Share on other sites More sharing options...
shl628 Posted August 31, 2021 Share Posted August 31, 2021 Add -igfxmlr boot arg to Config.plist and try rebooting. Link to comment Share on other sites More sharing options...
Lametta17 Posted August 31, 2021 Author Share Posted August 31, 2021 @shl628 Thanks for your help, but don't work. Link to comment Share on other sites More sharing options...
Lametta17 Posted September 1, 2021 Author Share Posted September 1, 2021 In the meantime I have tried all AAPL,ig-platform-id's for this CPU. With and without: AAPL00,overwrite-no-connect string. SMBIOS MBP 13,3 / MBP 13,1 framebuffer-fbmem framebuffer-stolenmem boot arg igfxonln=1 / -igfxmlr / agdpmod=pikera / gdpmod=vit9696 Is there still a chance to get the 4k monitor running? Link to comment Share on other sites More sharing options...
Lametta17 Posted September 8, 2021 Author Share Posted September 8, 2021 I give up. have tried (all) possibilities. i donate 50$ for the following configuration: 4k int. works HDMI ext. works Based on OC 070 or newer Maybe someone can remotely achieve this goal. Link to comment Share on other sites More sharing options...
Lametta17 Posted September 9, 2021 Author Share Posted September 9, 2021 I had already set DVMT to 0x4. Now it has finally worked. see attachment. Thank you very much for your active support. config.plist.zip 1 Link to comment Share on other sites More sharing options...
Lametta17 Posted September 13, 2021 Author Share Posted September 13, 2021 Is there still a possibility to use Thunderbolt? Link to comment Share on other sites More sharing options...
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