HS Installation Problem with X58 & Radeon 7770

[semson]

I used to have a HD7770 GPU too, Verde.kext work great on Sierra but it doesn't with High Sierra. The same fix is supposed to be employed by RadeonDeInit but no luck for me.

 

After intensively researched, I learnt to these options:

1. Roll back to Sierra kext.

2. Patch Framebuffer according to your card.

3. Last but could be the easiet one, if you're using DVI cable, try HDMI.

 

I forgot how I get HD7770 working on High Sierra finally, I do not own this card anymore. I still have HD5450 and HD7870, HD5450 works with Framebuffer patch, HD7870 does not but loading FB (Futomaki, Injet ATI), limits video port to 2 bring it to live on HDMI. Oh I am on X58 legacy system too;)