CsmVideoDxe.efi Clover HD4000

[colinzeal]

Hi All

Hope I'm in the right section.

GA-B75M-D3P
i3-3225
Using HD4000 via HDMI - only


I tried installing El Capitan and made a bit of a mess of it. So using Time Machine, I restored my machine back to 10.10.4.

All my files were there, but I had to reinstall Clover to boot off the drive.

My problem is, before the restore I had CsmVideoDxe-64.efi in my drivers64UEFI folder and this worked great. The boot screen showed the apple in 1080p and looked perfect.

However, after the restore I cannot boot with the CsmVideoDxe-64.efi in my drivers64UEFI folder. I get the blinking cursor. If I remove the file I can boot but I get the 'fat apple'.

I have not made any physical changes to the setup.

This must be a software issue as I have not changed monitors, cables or anything else. My BIOS was not reset. To verify this, the SATA setting in my BIOS was still at AHCI (Not the default IDE). I also went through the settings and could find no changes.

Can someone tell me why this was working before but isn't working now?

Thanks everyone.

 

[colinzeal]

@Toleda I saw you had this issue a few years back. Did you ever resolve it?