Bill Wilson Posted July 24, 2018 Share Posted July 24, 2018 I have an i7 E7440 with High Sierra 10.13.6 installed with the High Sierra bootpack from this website. All the audio over the laptop speakers, airplay and bluetooth works perfectly. But upon plugging something into headphone output, there is a loud crackling sound followed by white noise that is independent of the system volume. Even if the computers volume is muted the white noise is still there. If you plug in headphones while a song is playing then you can briefly hear it behind the white noise. The system properly detects that headphones are plugged in, a headphone option shows up in the sound settings and the speakers mute themselves. After about 30 seconds of no audio playing while headphones are plugged in the white noise stops, but resumes if there is any sound, and the white noises stops again after about 30 seconds of no audio. I have tried reinstalling High Sierra but it continues to occur. The only kext changes I have made are installing a fix for an atheros wifi card. Any help or suggestions would be greatly appreciated config.zip DSDT.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 24, 2018 Moderators Share Posted July 24, 2018 You missed a step it seems. There should be a couple of kexts inside /EFI/Clover/kexts/Other/LE or CopyToLE Those kexts should be copied to /Library/Extensions CodecCommander <- fixes the static noise AppleBacklightInjector <- enable Brightness Slider DisableTurboBoostBattery Repair permissions and rebuild cache 1 Link to comment Share on other sites More sharing options...
Bill Wilson Posted July 24, 2018 Author Share Posted July 24, 2018 Fixed the problem by enabling the fixHDA flag in clover. Thank you! everything is working perfectly now. Link to comment Share on other sites More sharing options...
Chính Xuân Mai Posted August 4, 2018 Share Posted August 4, 2018 Hi there! I also have this problem after updating to 10.13.6. I don't know if it is the version of the kext or something, but I have tried all the methods mentioned in this post but the problem is still there. Should I reinstall the whole OS? currently there are lots of apps that I don't wanna reinstall them once more time. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted August 4, 2018 Moderators Share Posted August 4, 2018 Did you repair permissions and rebuild cache after upgrade? post debug file Link to comment Share on other sites More sharing options...
MarkyMac Posted August 23, 2018 Share Posted August 23, 2018 I have the same issue, running 10.13.6 Static on headphone port, when built in speaker audio is fine. Plugging in the headphones gives static (LOUD), and the output device name changes from Dahili Hoparlorler to Kulaklik Named kexts appear to be in the right place, and have done repair permissions and rebuilt the cache. Any ideas? Link to comment Share on other sites More sharing options...
MarkyMac Posted August 23, 2018 Share Posted August 23, 2018 Ah, sorted it. Missed this step:- - Those kexts should be copied to /Library/Extensions Link to comment Share on other sites More sharing options...
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