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ATI Radeon HD 2600 XT 512 MB - Mountain Lion - Video Problem


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Posted (edited)

I'm using ATI Radeon HD 2600 XT 512 MB (Diamond) Video card with Mountain Lion installed. Using Chimera 1.11.1 as boot loader. Everything else including Sound working fine.


I managed to get thru resolution 1680x1050 60Hz on DVI port using Aty_init, ATINDRV and modified ATIRadeonx2000 kexts (please see attached picture).


Cannot play DVD, videos in iTunes, Youtube videos, selecting new tab in Safari gives flickering screen and new notification center flickers.


I'm not willing to accept that the card is too old or cannot be used in Mountain Lion since the fact is that Mountain Lion still carries all necessary kexts for this video card. Therefore, it must work with tweaks and experts advice. I'm eager to learn and open to constructive advice.


I'll appreciate if anyone can help or at least guide me in right direction.

460156062_ScreenShot2012-08-10at9_01_23AM.jpg.6ca085b37c54b0dcbebd3e977df3470b.jpg

Edited by Guest

System: GIGABYTE GA-965P-DS3 (rev. 1.3) Socket 775

CPU: Intel Core 2 Duo E6300 Conroe 1.86GHz LGA 775 65W

Graphics: DIAMOND ATI Radeon™ HD 2600 XT 512MB GDDR2 PCIe

Posted

I see ATI2600Controller, but not ATIRadeonX2000, is it really loaded?

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Posted

Thank you Cassio for a quick reply. Sorry, picture is misleading it was taken during one of the many experiments I was doing with kexts and settings. Yes, I do have modified ATIRadeonX2000.kext in S/L/E but not showing in Hardware properties Extensions. I had to remove Vendor Id and Dev ID ex : (0x95881002) in ATIRadeonX2000.kext to get to the desktop without which I was hitting white screen with cursor. I have also read a guide by artur-pt on ATI Graphics http://Olarila.com/forum/viewtopic.php?f=18&t=736 but could not understand enough to solve my problem.

1805255120_ScreenShot2012-08-17at9_38_55PM.thumb.png.13c9cf53ea8551c99c49a783f96f3b3b.png

System: GIGABYTE GA-965P-DS3 (rev. 1.3) Socket 775

CPU: Intel Core 2 Duo E6300 Conroe 1.86GHz LGA 775 65W

Graphics: DIAMOND ATI Radeon™ HD 2600 XT 512MB GDDR2 PCIe

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