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Help with 10.9.5, MBR, HD6450


zeg66
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Please help me with this 10.9.5 system. Motherboard: Gigabyte 965p-s3 rev3.3, gpu: Ati Radeon HD6450 (dvi/hdmi/vga). 

Using any of the 3 ports on the 6450 (dvi, hdmi, vga), I see all the white letters on black background during boot but when they complete and it's time for the graphics to start I get a black screen and sometimes a restart after that. Using Clover 4411. Is there any way to get past this?

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Framebuffer: When Clover starts and I choose Options->GraphicsInjector, I see this line:

"FBConfig:Bulrushes_"

but I don't know if that is applied or just a suggestion.

PCI ID's of card: From within windows 7 I can obtain this information: 

Vendor 1002, Device 6779, Subsys E164, Supplier 174B, Revision 00

but I am not sure if this is the information you requested.

Thank you for being willing to help.

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You're meant to use a specific ATI framebuffer to be able to get your graphics working. It's a bit similar to the layout-id one selects for Intel integrated GPU.

In case you're not using it, I strongly recommend you use Clover Configurator app to configure Clover. For graphics settings, you'll be able to select ATI frame buffers through the Graphics tab. You also need to tick (select) Inject ATI but I guess you're already doing that. If Bulrushes does not work, try the other FB of the AMD 6000 controller.

CC_Graphics_tab.thumb.png.0fdde57b259fd57a6a141004468f818b.png

AMD_6000_FB.thumb.png.81ccf4e7ea9e33fb4be596167d5d0e4d.png

Edited by Hervé
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Yes I am familiar with Clover Configurator but how can I use it when the machine doesn't even go into graphics? All I get is the (-v Verbose) messages, white letters on black background and then, a black screen.

 

 

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Try "Pithecia" framebuffer and if you still get a black screen, try the other values.. PCI id 1002:6779 is present in Mavericks vanilla AMD6000Controller kext so it should work OOB wi the correct FB, so to speak.

Edited by Hervé
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There appear to be so many permutations!

Which port should I connect a monitor to? Dvi, hdmi or vga? Personally I'd rather use vga.

I get this message when it hangs: "still waiting for root device" and a "stop" sign in the middle.

My Boot Args: -v dart=0 npci=0x3000

And then the Options->GraphicsInjector options, as shown:

Inject EDID (Fake Vendor, Fake Product, Backlight:0xFFF, Intel Max Backlight:0000)

Card Device ID=6779

Model: AMD Radeon HD 6450/7450/8450/R5

Inject ATI (select or not)

DualLink:1

DeInit: (select or not)

   Fake ID:0x00000000

   FBConfig:Pithecia

   Ports:06

   Connectors:00000004

   RefCLK:000000

Load Video Bios (select or not)

 

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