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HD 7750

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I am using a Sapphire HD 7750 2 GB in ML on an AMD 960T , I used the ati7000 kexts from osx86 but was getting the white screen and due to no sleep function on the AMD kernel I could not go futher, hence I used the Power Button hack in the dsdt and used the sleep enabler kexts and it started working with full resolution but of course no QE/CI I am able to select different resolutions and it works in dual mode VGA+DVI.


So I went ahead and inserted the ATI 7000 dsdt code in my dsdt and rebooted , now I am getting the blank screen on login, the sleep still works but there is no display, I can use the keyboard.


Of course this is 10.8.0 .


I think it has something got to do with the connectors, does anyone know about this and could help.

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I managed to get blank screen rectified through the DSDT , AAPL00,Dual-Link, but the display is only on the DVI and not VGA and don't think the resolution is right , but I think I am using Aji as the FB will try using Chutoro.

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If I change


Name (_ADR 0x00200000) to (0x0010000) I get the white screen and then log in with the sleep trick, but if the value is 0x0020000 the screen goes blank post login.

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Is there any experience w/ the Sapphire 100357LP Radeon HD 7750 1GB 128-bit GDDR5 PCI Express 3.0 x16 HDCP Ready Low Profile Video Card mDP/ DVI-I/ HDMI? Got very good reviews on Amazon and NewEgg.


My Optiplex 745 SFF (Small Form Factor) and a 27" mDP ACD are looking for a new low-profile mDP video card, and the 7750 is said to groove along just fine with the PSU.

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