IntelBacklight.kext is not working correctly with 10.12.4. Until it is fixed, you can use Brightness by bergdesign with it, or you can use patched AppleBacklight.kext or an AppleBacklightInjector.kext customized for your graphics device and display identifier. Link to be posted later.
IntelBacklight.kext与10.12.4不能正常工作。直到它被修复，您可以使用bergdesign的亮度，或者您可以使用修补的AppleBacklight.kext或为您的图形设备定制的AppleBacklightInjector.kext和显示标识符。链接以后发布。
Note: Many people will assume brightness is working correctly simply by deleting IntelBacklight.kext. But if you look at things carefully you will notice that you do not have correct brightness range, and the range will likely be
different before a sleep/wake cycle vs. after. For others (with a lower BIOS PWMMax), it can be worse: black screen at higher brightness levels prior to a sleep/wake cycle.
注意：许多人会假设通过删除IntelBacklight.kext，亮度正常工作。但是，如果仔细观察，您会注意到您没有正确的亮度范围，并且在睡眠/唤醒周期与之后的范围可能会不同。对于其他（使用较低的BIOS PWMMax），可能会更糟糕：黑屏在睡眠/唤醒周期之前的较高亮度级别。
