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How I fixed Broadwell HDMI and ALC255 Sound In Big Sur


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When I installed Catalina and Big Sur on my Dell 7352 Broadwell i7-5500u and HD5500, the ALC255 and HDMI sound didn't show up even with Lilu.kext, AppleALC.kext, Whatevergreen. I had to patch DSDT and add connector 1 to HDMI for it to work. This is how I did mine.

 

Cheers,

Louis

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