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MegatronsKneecap

[Question] - Lenovo ThinkPad X1 Carbon 1st Gen - Brightness not working!

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Hey guys!

Just did an install of BigSur on my first-gen X1 carbon and all is working great! Well... Apart from arguably the most important part of a functioning operating system - The brightness slider! I've added the SSDT-PNLF.aml and AppleBacklightFixup.kext files to my EFI folder with no results. I've also done a couple of iGPU patches but they haven't helped at all either. It's a notebook-ivybridge machine. No brightness slider appers in settings and it's completely blanked out on the control center 😕 

Hope I can get it working with your guys's help as it's the only thing holding this back from being a great hackintosh! 

Here is the model of my machine if it helps: https://psref.lenovo.com/syspool/Sys/PDF/withdrawnbook/ThinkPad_X1_Carbon_1st_Gen_WE.pdf

Looking forward to hearing your reply!

Thanks, 

MegatronsKneecap!

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add ssdt pnlf with whatevergreen only

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11 hours ago, MaLd0n said:

add ssdt pnlf with whatevergreen only

Thanks! Managed to fix this with a DSDT dump and SDST time. Last thing is AppleALC not working. My audio chip is a Realtek 269VC and no matter what layout id I use it simply won't work. Really annoying. Any thoughts? 

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