scram69 Posted December 12, 2020 Share Posted December 12, 2020 My E6430 runs Catalina 10.15.7 on OC 0.6.3. The built-in display goes dark following the apple logo on boot, and eventually the machine goes to sleep. Once I wake it from sleep by pressing the power button, everything seems to work fine. I have tried both the E6430 low-res DSDT posted here by Jake Lo as well as the one posted by Herve in this thread. Both give the same results. I have found that if I boot in the dock (Dell port replicator) with an external display connected, the machine boots fine and the display stays on. Link to comment Share on other sites More sharing options...
Administrators Hervé Posted December 13, 2020 Administrators Share Posted December 13, 2020 Specs and zipped EFI folder please. Laptop going to sleep at login screen is typical result of running with a CPU PM SSDT meant for a different CPU that fitted to the hosting laptop. Link to comment Share on other sites More sharing options...
scram69 Posted December 13, 2020 Author Share Posted December 13, 2020 Specs: BIOS: ver A22 CPU: i5-3340M @ 2.7 GHz RAM: 6BG 1600MHz DDR3 Graphics: HD 4000 1366x768 Catalina 10.15.7 Attached is the EFI. The SSDT-PM.aml comes from running ssdtPRGen.sh on this laptop. However, the config uses MacBookPro11,1 as that was what Jake Lo had used in his config.plist (presumably for Big Sur compatibility). That generates a mis-match warning when ssdtPRGen.sh is run, but the script still generates the aml file. EFI.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 14, 2020 Moderators Share Posted December 14, 2020 Upgrade BIOS to A24. DSDT was patched from DSDT exported from BIOS A24, otherwise export your DSDT on A22 and I'll patch it for you. Link to comment Share on other sites More sharing options...
Administrators Hervé Posted December 14, 2020 Administrators Share Posted December 14, 2020 You may also revert SMBIOS to MBP9,2 or MBP10,2 and use -no_compat_check boot arg. Link to comment Share on other sites More sharing options...
scram69 Posted December 15, 2020 Author Share Posted December 15, 2020 Sorry - my mistake. I misread the BIOS version; my E6340 is at A24. Could using MBP11,1 instead of an ivy bridge ID may be causing the boot-to-sleep issue? If I revert to 10,2, do I need to generate new serial numbers/UUID's etc in order for Messages to work? Link to comment Share on other sites More sharing options...
Administrators Hervé Posted December 15, 2020 Administrators Share Posted December 15, 2020 No. Yes. Link to comment Share on other sites More sharing options...
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