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    • By using the normal way via Appstore, just click "updates" and download 10.12.6.

      Btw, after messing around with Niresh installer ( thanks a LOT for his effort ) i desided to try other ways ( out of respect for Niresh and his his awesome job helping us out i wont tell the name of the other installer ) i used a well known installer to install Sierra, and it worked well, and this time with the correct settings for the screen right out of the box, no more laggy desktop and 3mb display.

      And just now i tried to install High Sierra on my laptop, with the sudo/terminal way, and it was an instant success, just like installing it on my desktop.    The High Sierra MacPwn wouldnt work on my laptop.
    • how you updated niresh sierra??
    • you want to update the applications from app store? if yes, its safely. if you want to upgrade from yosemite to sierra, I dont think is possible.
    • Updating Sierra to 10.12.6 ( from 10.12.5 ) solved the problem for me, and probably will for you as well.
    • Thanx for your reply demy076. My problem solved itself by updating from 10.12.5 to 10.12.6. After installing 10.12.6 and restarting my screen was perfect.

      I still dont know why my screen was ok in  Yosemite Zone but not in Sierra Zone though.

Experimental 6 channel AppleHDA for ALC889 v269.25 (10.10.2)

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About This File

This will enable your analog 6 channel surround sound using AppleHDA's native multi-channel DSP support. Furthermore, all jacks work!

Under System Preferences, select Internal Speakers, and there the analog 6 channel surround sound should be.

No need to create aggregate device in Audio MIDI Setup!

Internal Speakers can be automatically switched to headphone after plugging headphone in.

Internal microphone (rear mic) can be automatically switched to Line In (front mic) after plugging front mic in.

"Use ambient noise reduction" is available when using Internal microphone (rear mic.)

Add this Method DSM under HDEF:Device (HDEF)

{

Name (_ADR, 0x001B0000) // _ADR: Address

...skip...

Method (_DSM, 4, NotSerialized) // _DSM: Device-Specific Method

{

Store (Package (0x0E)

{

"AAPL,slot-name",

Buffer (0x09)

{

"Built-in"

},

"name",

Buffer (0x06)

{

"Audio"

},

"model",

Buffer (0x0F)

{

"Realtek ALC889"

},

"device_type",

Buffer (0x16)

{

"High Definition Audio"

},

"layout-id",

Buffer (0x04)

{

0x20, 0x00, 0x00, 0x00

},

"hda-gfx",

Buffer (0x0A)

{

"onboard-1"

},

"PinConfigurations",

Buffer (Zero) {}

}, Local0)

DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))

Return (Local0)

}

}It is necessary for some motherboards (such as ASUS) to add IRQNoFlags under HPET, in order to load AppleHDA:Device (HPET)

{

...skip...

Name (BUF0, ResourceTemplate ()

{

IRQNoFlags ()

{0}

IRQNoFlags ()

{8}

IRQNoFlags ()

{11}

IRQNoFlags ()

{15}

Memory32Fixed (ReadOnly,

0xFED00000, // Address Base

0x00000400, // Address Length

)

...skip...**CAUTION** After updating to OS X Yosemite, it is necessary to add the boot argument "kext-dev-mode=1" in order to make this patched AppleHDA work:kext-dev-mode=1

PS. I can't guarantee it will work for all ALC889. Please don't PM me for this, as I don't have time to help each guy. Sorry!

Please do not upload this to other website especially Tonymac's forum!

What's New in Version v269.25 (10.10.2)

  • Fixed binary patch for OS X Yosemite






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