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Acer Aspire 7750G - Need a little help


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#1
Lordadmiral Drake

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Hardware config is in signature

I've now hackbooked my new Laptop with OS X 10.8.2
The most important stuff is already working, but I need some help polishing my installation

What works:
AMD Radeon HD6850M with QE/CI
Sound - ALC269VB with VoodooHDA
USB 3.0 Controller
Webcam
Battery charge level

What doesn't work:
VoodooHDA detects my sound chip. But at startup it only detects the HDMI audio output, internal microphone and microphone jack.
If I do:
sudo kextunload VoodooHDA.kext
sudo kextutil VoodooHDA.kext
in terminal I detects my internal speakers, but HDMI audio is gone.
Headphone jack isn't detected in either case.

Despite having patched my DSDT I still need NullCPUPowerManagement
After some time of doing nothing the system freezes and I need to hard-reset
No trackpad scrolling

Any help is much anticipated :)

#2
styrian

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How have you installed 10 8.2?

Have fun.

#3
Lordadmiral Drake

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I used this tutorial: http://www.root86.or...rial-(IntelPCs)
It's in german, but from your username I assume that you speak german

#4
styrian

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I used this tutorial: http://www.root86.or...rial-(IntelPCs)
It's in german, but from your username I assume that you speak german


VoodooHDA is known for causing KP and system freezes. Remove all related files from your system to proof, if VoodooHDA causes your freezes. Then you have to search for a patched AppleHDA.kext for Alc269/271. For native PM a DSDT is not relevant. You need a patched AppleIntelCPUPowerMangement.kext and may be a roolback of AppleACPIPlatform.kext. Install the attached ACPM.kext and generate with the script from Revogirl in my attachment an own SSDT.aml. After a reboot remove NullCPUPowermanagement.kext and if it is on your system sleepenabler.kext, delete kextcache and boot with option -v -f. Maybe you have to generate C and P-States with chameleon.

Have fun.

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#5
Lordadmiral Drake

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Solved audio with new 64 bit VoodooHDA 2.8.0 (Couldnt find a working patched AppleHDA so far)
Solved trackpad with different PS2 kext

#6
Lordadmiral Drake

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Finally found a patched AppleHDA.kext for my audio codec. Didn't fix the system freeze issue though

#7
dolphinaura

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Can I have a copy of your patched AppleHDA for my laptop - I have the same card.

Thanks!

#8
acero

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hi,
id 12 in dsdt or enabler

 

for mavericks updates u can patch directly with bcc9 script,platform is not updated;

terminal,drag patch.hda ,answer yes.....

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