Radeon 4650 (9498) - Dual Monitor with DVI Port not working on 10.10

[Cukibaw]

Hello Insanelymac, im new user here.
before sorry for my bad english,

 

I use OSX Yosemite 10:10 with Chameleon bootloader installed with 2 Display (VGA, DVI> VGA), At the time of the installation process Yosemite to the hard drive, everything went smoothly, monitor running side by side mirror.

up post installation. but I find it a problem when I install kext for hd4650 I get from http://www.osx86.net/file/4272-ati-radeon-hd-4650-os-x-yosemite-1010/, my monitor is no longer running side by side, but only its VGA port are working, while for its DVI port does not provide any signal on the monitor (no signal).


I've tried adding Devid 94981002 in AMD4600Controller kext (info.plist) but to no avail.

I also tried the patch Framebuffer / ATY Personality, by changing the hex code of AMD4600Controller.kext, but to no avail as well ..


please anyone help me to resolve this


FYI
bootflag: -v GraphicsEnabler = Yes NPCI = 0x2000 PCIRootUID = 1

 

following some text for patching framebuffer

01. (HDMI)
Redsock :
  encoder obj id [0x20] which is [INTERNAL_UNIPHY1 (osx txmit 0x11 [duallink 0x1] enc 0x2)] linkb: false

Radeon :
  Connector at index 0
    Type [@offset 44660]: HDMI-A (11)
    Encoder [@offset 44664]: INTERNAL_UNIPHY1 (0x20)
    i2cid [@offset 44732]: 0x93, OSX senseid: 0x4

Construction Code : 11 02 01 04

02. (VGA)
Redsock :
  encoder obj id [0x16] which is [INTERNAL_KLDSCP_DAC2] linkb: false

Radeon :
  Connector at index 1
    Type [@offset 44670]: VGA (1)
    Encoder [@offset 44674]: INTERNAL_KLDSCP_DAC2 (0x16)
    i2cid [@offset 44759]: 0x90, OSX senseid: 0x1

Construction Code :  ??

03. (DVI)
Redsock :
  encoder obj id [0x1e] which is [INTERNAL_UNIPHY (osx txmit 0x10 [duallink 0x0] enc 0x0)] linkb: false

Radeon :
    Connector at index 3
      Type [@offset 44690]: DVI-I (2)
      Encoder [@offset 44694]: INTERNAL_UNIPHY (0x1e)
      i2cid [@offset 44784]: 0x91, OSX senseid: 0x2

Construction Code : 10 00 03 02