About This File
Kexts for ATI Radeon HD 4650 to install with Kext Utility.
Successfully tested on OS X 10.10.
Those are the originals Yosemite kexts with only added 4650 DeviceID because no real Mac is using a 4650. So the divers are petty much stock. Give it a try! Mine works with 1920x1080 with login screen working too OOTB. So I am sure any graphic problem is not related to these kexts.