PCI configuration begin or no GPU

[p4ever]

Hi all,

I recently installed 10.10.1 on my old pc but which as both integrated(Intel GMA 4500MHD) and dedicated graphics card(ATI HD4330)

if i disable from BIOS the integrated one the screen freezes at PCI configuration begin meanwhile the OS keeps loading (i can heard a "tic" when the audio kext is loaded) and if i keep both cards powered on the OS starts but with the wrong resolution and no HW acceleration even if it sees both cards as in the attachment. Does someone has any idea how to fix it? 

I've already tried to use npci=0x2000/0x3000 with no changes 

 

I put also a HW report as attachment 

Report.txt

[spakk]

you can fix the problem with using a custom DSDT or with clover bootloader

look here: http://www.insanelymac.com/forum/topic/286092-guide-1st-generation-intel-hd-graphics-qeci/

these should work

Edited October 22, 2015 by spakk

[ciao007]

I have an ATi Radeon HD 5450. You need to find the correct kext in the first place for you ati card. there is a site wich features all the ati kext for the correct yosemite

 

http://www.osx86.net/file/4277-hd5450-68f9-68e5-68e1-yosemite/?page=1(find you card driver from here)

 

this is what i posted there to get the my card working, good luck

------------------------------------------

 

Thanks it actually worked for my ATI Radeon HD 5450 512 mb version On Yosemite 10.10.1

 

If you have some problems do like this:

 

1)Download proper kext (I used the Yosemite final version)

2)Download Kext Utility app

3)drag and drop kext into Kext utility and wait for the process

4)open "org.chamaleon.Boot.plist" with TextEdit and add those lines in the text

 

        <key>AtiConfig</key>

        <string>Eulemur</string>        

        <key>GraphicsEnabler</key>

        <string>No</string>

 

add this to kernel flag without editing anything else:

kext-dev-mode=1

 

like this

<key>Kernel Flags</key>

<string>debug=8 ahcidisk=1 dart=0 kext-dev-mode=1</string>

 

5)Restart and Voilà. Thanks to this community.

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