tazmarino Posted March 27, 2017 Share Posted March 27, 2017 Hi guys, I just installed El Capitan on my Dell Precision m6800, but: - with no args at the boot the display is black; - with nvda_drv=1 the display is black; - with nv_disable=1 the display works, but with strange glitches since the login screen and when I play a video file. I think that it's a GPU issue. I have the Nvidia Quadro K3100m. Do you think I can solve this problem with some driver fixes? I followed this super guide by Jake Lo: https://osxlatitude.com/index.php?/topic/7851-dell-precision-m6800-mobile-workstation-wip/?p=64970 ...but my Smbios is not the same (I couldn't find the exact model of Jake's screenshot). Indeed, Jake in his guide says When generating your own Smbios serial with Clover Configurator 4.34, make sure to use the same Board-id from the bootpack below, otherwise blank internal screen Do you think that maybe I can solve this problem with some changes in the smbios or is too late? thanks in advance for your help guys! taz Link to comment Share on other sites More sharing options...
Administrators Hervé Posted March 27, 2017 Administrators Share Posted March 27, 2017 Do as stated by JakeLo and manually set your board-id to same value as found in the SMBIOS posted in the bootpack. Or reuse his exact same SMBIOS but generate new serial number using the random buttons. 1 Link to comment Share on other sites More sharing options...
tazmarino Posted March 27, 2017 Author Share Posted March 27, 2017 Thanks Hervé! But this is the first time for me... Will I mess everything if I change the smbios now? Is it ok if I just do these steps? 10. Generate own SMBios and SSDT Launch /EFI/Clover/Config.plist with Clover Configurator (Included in Tools attached below) On the left, click on SMBIOS Click on the magic Wand on the right Select the model most suited for your system or use same model included in bootpack, generate a new serial Close Clover Config and save the file. Execute ssdtPRGen.sh from terminal (Included in Tools attached below) Place generated SSDT.aml in /EFI/Clover/ACPI/Patched 11. Make sure to disable hibernation as it's a prerequisite to get sleep & wake to work Ok on a Hackintosh: sudo pmset hibernatemode 0 sudo rm -f /var/vm/sleepimage sudo pmset hibernatefile /dev/null Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 27, 2017 Moderators Share Posted March 27, 2017 just use the Config file as is until you have a fully working system. Link to comment Share on other sites More sharing options...
tazmarino Posted March 28, 2017 Author Share Posted March 28, 2017 Hi Jake and thanks for your precious guide. I just tried to replace my config.plist file in /volumes/EFI/EFI/Clover/ with yours, but the situation is the same: - with no args the display is black; - with nvda_drv=1 the display is black; - with nv_disable=1 the display works with glitches; Do you think that there is a fix for this problem? Because actually I need a working GPU for my job (motion design) and it would be great to use this laptop with OSX! Thanks a lot!! Tazi Link to comment Share on other sites More sharing options...
tazmarino Posted March 28, 2017 Author Share Posted March 28, 2017 UPDATE: I tried to use directly Jake Lo's config.plist file and the display is black. I also tried to manually edit the config.plist file and insert the same board-id in Jake's file and nothing changes. When I boot using the web drivers the display is like in sleep: if I try (with black screen) to insert the password and adjust the volume it plays that "bling" sound AND if I plug a HDMI display, the system works correctly, with NO GLITCHES AT ALL. So I think that the goal is to make the built-in display working. Any advices? Thanks a lot for your support guys! Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 28, 2017 Moderators Share Posted March 28, 2017 With the HDMI video connected, run this and attach the file IOReg IORegistryExplorer_v2.1.zip It could be your display is eDP and not LVDS. Link to comment Share on other sites More sharing options...
tazmarino Posted March 28, 2017 Author Share Posted March 28, 2017 Thanks a lot Jake. This is the output of the app. Waiting for your answer! Orazio’s MacBook Pro.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 28, 2017 Moderators Share Posted March 28, 2017 Not seeing any display for your internal device NVDA,display-A@0 See here to determine if you have eDP or LVDS See here and here for more info Link to comment Share on other sites More sharing options...
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