orbislacteus Posted December 19, 2017 Share Posted December 19, 2017 Finally gave up High Sierra and tried my luck with Sierra. It looks better, but Brightness and sleep do not work properly. Brightness Slider is there and keys work with karabiner. but ii can only switch between full brightness and no brightness (blank screen). If the screen goes black on energy saving it hardly comes back again. Debug Files attached. debug_10956.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 19, 2017 Moderators Share Posted December 19, 2017 Remove Backlightlevel 0 and try 0x0306 instead Link to comment Share on other sites More sharing options...
orbislacteus Posted December 19, 2017 Author Share Posted December 19, 2017 Hmmm Sorry, no change Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 19, 2017 Moderators Share Posted December 19, 2017 which Sierra are you running and are you using NVMe drive? Link to comment Share on other sites More sharing options...
orbislacteus Posted December 19, 2017 Author Share Posted December 19, 2017 its 10.12.5 at the moment (was the current version when I created the install stick). Im not using NVMe drive - it is an SATA Drive. Shall I upgrade to 10.12.6 and test again? (I would upgrade any way). Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 19, 2017 Moderators Share Posted December 19, 2017 try replacing Config and ACPI folder with this Won't make a difference upgrading to 10.12.6 but go ahead. Link to comment Share on other sites More sharing options...
orbislacteus Posted December 20, 2017 Author Share Posted December 20, 2017 There where different packages in there. tried all of them - didn't change something for the better. Maybe I need a newer bios version. The System says i have 1.5.3. The Dell Web Page says current version is 1.17.5 is there any way i can upgrade without windows? Tried to test install windows on external drive, but that doesn't seem to be so easy. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 20, 2017 Moderators Share Posted December 20, 2017 Don't need Windows to upgrade. Just place the *.exe in any USB drive, select F12 during boot. Select "BIOS Flash Update" Browse the USB for the file Begin BIOS Update. Link to comment Share on other sites More sharing options...
orbislacteus Posted December 20, 2017 Author Share Posted December 20, 2017 Oh, thats indeed easy - did it with freeDos on a stick. So now I have current BIOS, but nothing is better now. Maybe I have to do my own DSDT Editing? Is it possible to do the dsdt patches with Clover? Which patches did you apply? (I hate DSDT patching) Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 20, 2017 Moderators Share Posted December 20, 2017 Boot to Clover, hit F4. Continue to OSX, compress and attach /EFI/Clover/ACPI/Origin here for patching Link to comment Share on other sites More sharing options...
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