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AMD Radeon HD 8890M on OS X


Forbidden Era
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Hi,

 

I have an All-In-One PC (Asus E2702T or something?) and got Mavericks mostly running - planning on updating to Yosemite soon and would if needed. I've been using hacked Macs since it was first possible and programming over 20 years - willing to do mostly whatever it takes to make this work - within reason - I have no issue patching stuff / etc.

 

Sound, LAN, WiFi works.

 

Trying to get video accelleration.

 

The video device is an AMD Radeon HD 8890M

System Info lists the graphics chipset as 1002:6820 - "Venus XTX [Radeon HD 8890M / R9 M275X]"

and the HDMI audio as 1002:aab0 "Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700 / 7800 Series]"

 

To boot, I am using: GraphicsEnabler=No "Graphics Mode"="2560x1440x32"

 

Oddly, if I use half 1280x720x32, it never enters OS X. 2560x1440 is the native resolution of the 27" in-built panel.

 

If I use GraphicsEnabler=Yes it seems to detect the card..maybe? I saw some related stuff in the logs but I'd probably have to snap a pic quick to get it or.. But once it does it's thing - the screen goes blank - as in, no signal (as if I unplugged it - which is obviously impossible)

 

Any and all help appreciated. Thanks.

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