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7970 And Boot Screen Clover 2747 & 10.9.4

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Joined
Feb 1, 2012
Messages
13
Motherboard
10.7.5
CPU
8 core
Graphics
ATI Radeon HD 5770 1024 MB
Mac
Classic Mac
Mobile Phone
Hi All,

This is my first topic here, so forgive me if this is general knowledge. Last time I checked the boot screen was unavailable for "ANY" ATI card (mine is the 7970).

However during a new system setup with the latest of everything (10.9.4 & Clover install-NO DSDT or SSDT) - I did use the newest gigabyte modded bios - (mod11 f16: http://forums.tweaktown.com/gigabyte/48085-gigabyte-modified-bios-271.html)

So I had issues with getting the 7970 to boot without the IGFX connected. With it connected no issues, otherwise I would get a strange curser flashing on the right of the screen- no prompt- just flashing.

Then I remembered that in order to get my other Clover install working, I had IGFX set to primary - but then either disabled or set to AUTO. (I think this is a gigabyte bug?)

Anyway long story short- wasn't I surprised when I booted with IGFX set to primary and turned off- that the 7970 spat out a boot screen and all... Even the Apple logo got spat out... something my other machine just shows a black screen for...

Any ideas? Is this normal behaviour now? (As in normal mac behaviour?)

Cheers
Al
 
Joined
Apr 3, 2013
Messages
34
Motherboard
Gigabyte Z77x-UP5TH
CPU
Intel i7-3770k
Graphics
2x Sapphire Vapor-X 7970 GHz
Mac
  1. MacBook Pro
Classic Mac
  1. 128K
  2. iMac
  3. Power Mac
Mobile Phone
  1. iOS
Where you ever able to get the issue fixed? I just installed 10.10.1 with clover and am unable to use my 7970 for graphics. I am going to try setting IGFX to Primary and see if that works.
 
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