Radeon Mobility x1450 PID 0x7186 VID 0x1002

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What steps will reproduce the problem?
1. Install iAtkos S3 v2, upgrade 10 OS 10.6.5, downgrade IOUSBFemily.kext 10 
10.6.2 using Multibeast
2. Modify ATIRadeonX1000.kext to support PID 0x7186. Open info.pList, replace 
0x7187 with 0x7186. Open ATIRadeonX1000 binary with 0xEd, search for 0x7187 and 
replace with 0x7186 (8671). Flash kext with pfix. Reboot
3. ATIRadeonx1000.kext loads. 
4. Install RadeonHD.kext. Kext does not load.

What is the expected output? What do you see instead?
1. ATIRadeonX1000 and RadeonHD are expected to load. 
2. ATIRadeonX1000 loads; RadeoanHD does not.
3. Problem with mouse; there is a square around the mouse, and scroll creates 
distortions on the screen. 
4. I am looking to modify RadeonHD.kext to load and support the x1450 embedded 
card, eliminate the mouse tearing by changing the enableHWcursor to OFF. 

What version of the product are you using? On what operating system?
Mac 10.6.5
Darwin Kernel Version 10.5.0: vr 26 nov 2010 17:47:22 CET; annappirtrvh v4 
:xnu-1504.9.17-legacy/BUILD/obj/RELEASE_I386

Thanks,
Ale99

Please provide any additional information below.

Original issue reported on code.google.com by eyal%esh...@gtempaccount.com on 17 Dec 2010 at 6:05

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Update: I found why the RadeonHD did not load; I had to disable the Graphics 
Enabler in the Chameleon boot loader. 
New problem: dark screen. I followed the steps to set Backlight to 0 and it did 
not help. Currently I can load the RadeonHD kext but I cannot get a bright 
screen on the laptop. 
Any suggestion would be appreciated. 

Original comment by eyal%esh...@gtempaccount.com on 23 Dec 2010 at 9:47