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AMD Radeon HD 6650M / Graphics Enabler / DSDT / HDMI Audio / Acer Aspire 7750G - 2674G50Mnkk [Gradients Fixed]

Trucker MK

By Trucker MK,
in ATi

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Trucker MK
Trucker MK
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No for the USB 3.0

For sleep, you need to patch AppleIntelCPUPowerManagment.kext There's a script for this, search this forum for patching AICPUPM

Tauio111
Tauio111
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Patched the values of LVDS for pitchecia and ipomoea, tried them both with editing the chameleon conf. The LVDS is still black with no backlight.

This is what i used for lvds: 

02 00 00 00 40 00 00 00 09 01 00 00 10 01 00 07

I have never achieved getting backlight working on the LVDS. It detects my GPU as 6400 series with 1024mb which is right. VGA screen working with 1440x900@75hz with customized edid file. When booting without VGA connected i get a kernel panic.

What am I missing?

Trucker MK
Trucker MK
Posted
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Patched the values of LVDS for pitchecia and ipomoea, tried them both with editing the chameleron conf. The LVDS is still black with no backlight.

This is what i used for lvds: 

02 00 00 00 40 00 00 00 09 01 00 00 10 01 00 07

I have never achieved getting backlight working on the LVDS. It detects my GPU as 6400 series with 1024mb which is right. VGA screen working with 1440x900@75hz with customized edid file.

What am I missing?

Try different value for the transmitter.

Tauio111
Tauio111
Posted
Posted

Try different value for the transmitter.

I have tried using the transmitter and encoder values from my bios decode. The LVDS was still black without the backlight.

Tauio111
Tauio111
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Posted

Change ATY,ControlFlag from 0x0040 to 0x0100 and try with Transmitter/Encoder 10 01/20 01

still black with no backlight :/ Maybe I need to find another framebuffer? Or edit something in my dsdt?

Trucker MK
Trucker MK
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You can try other framebuffers. Look in mucha's thread for all possible values for ATY,ControlFlags, Transmitter, Encoder. Change one of these and try with all possible combinations for others. And all you can do is try, try, try...

Change the LVDS SenseID of all framebuffers to 07, boot with AtiConfig=framebufferName and see if it makes a difference with some framebuffer.

Tauio111
Tauio111
Posted
Posted

How goes the " Brute Forcing your ATI the Trucker's way"? No results yet? ;)

I had some stuff to do today, ill get my hands on it tomorrow as soon as i can ;)

Tauio111
Tauio111
Posted
Posted

Tried many framebuffers, some give kernel panic, some have just vga working, some dont work at all, and Pitchecia is the only one which shows that I have 2 screens connected, but both screens are my vga screen. My lvds never got the backlight on.

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