oleshka_02 Posted October 23, 2021 Share Posted October 23, 2021 I used the Dell Latitude e7440 thread by Jake Lo to upgrade my opencore from 0.7.0 to 0.7.4 and brightness stopped working all of a sudden. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted October 23, 2021 Moderators Share Posted October 23, 2021 try resetting NVRam 1 Link to comment Share on other sites More sharing options...
oleshka_02 Posted October 23, 2021 Author Share Posted October 23, 2021 I have tried this, didn´t work (alone) if you Reset NVRAM, reboot into MacOS, then go to Displays, change your preferences from Default to escalated and change your resolution momentarily, it works like a charm. Found this while playing with settings trying to repair this issue. Thank you so much Link to comment Share on other sites More sharing options...
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