Hello, I have a problem, when I upgrade to version 10.9.2 after the boot the screen goes black, no signal lost, just not showing the login screen, with 10.9.1 worked without any kind of problem, my configuration is with the last clover r2605.
XFX Ati 7950 3072 MB
Z68-DS3P rev. 1.0 (not UEFI) Disable IGPU
Works with Intel HD 3000 system and loads the Ati card but does not work alone.
How do you fix a problem?