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angelus88

Can't install HD4000 Graphic kext

Question

First of all, hello guys and thanks in advance for your support.

I desperately need your help.

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I have a laptop, Acer E1-570 where I successfully managed to install N{censored} Mavericks 10.9

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I have Chameleon bootloader and at first the system didn't want to boot.

It only booted with -x boot flag that's it safe mode.

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After some advices around forums, I removed all the kexts files relating the graphics from /System/Extensions/Library and now it's booting fine without any boot flag but I have no internet and no graphic acceleration.

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The graphic card is correctly identified but no kext are loaded.

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As I said, I have the HD 4000 integrated graphic card and I don't know what to do to install the correct kext file. I tried everything but every time I install the AppleIntelFramebufferCapri.kext , Mavericks won't boot and I don't know what boot flag should I use but I tried almost anything.

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Could you please, please, give a hand with this? sad.png

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Thanks again guys

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Alla fine ho risolto diversamente. Dopo tutto quello che ho passato per convertire l'hard disk da GPT a MBR senza perdere i dati e esser quindi passato da UEFI a Legacy, non me la sentivo di seguire queste istruzioni. Avevo paura di creare casini.

Allora usando MaciASL e questo repository, ho trovato una patch già pronta chiamata "Fix Brightness HD3000/HD4000.

Applicata e generato il nuovo DSDT.aml e adesso è apparso lo slide della luminosità! :)

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Ok,ti consigliavo di passare a clover come bootloader perchè avresti avuto il controllo della luminosità senza fare altro e in un futuro passaggio a Yosemite è l'unico bootloader che (in yosemite) sia in grado di fixare imessage.

Ciao!

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