hd4400 horizontal lines high sierra

[Ratio]

Hi! I am actually running high sierra in legacy because is the solution I read in the forums for garbled graphics. If I run osx in uefi mode I get a garbled screen UNTIL i put the laptop to sleep ( closing the lid ) and I wake it up again. From that moment on everything works fine.
So what if we could run a script after booting is completed that put the laptop to sleep? In that way instead of seeing the logging screen you would get a black screen, then loggin, then working graphics in uefi mode. It would be a total hack.

Is it possible to run a script before logging in?

Cheers!

 

[RehabMan]

Hi! I am actually running high sierra in legacy because is the solution I read in the forums for garbled graphics. If I run osx in uefi mode I get a garbled screen UNTIL i put the laptop to sleep ( closing the lid ) and I wake it up again. From that moment on everything works fine.
So what if we could run a script after booting is completed that put the laptop to sleep? In that way instead of seeing the logging screen you would get a black screen, then loggin, then working graphics in uefi mode. It would be a total hack.

Is it possible to run a script before logging in?

Cheers!

You should enable legacy boot/CSM but still boot in UEFI.

 

[Ratio]

I looked for that in the bios settings but all I can set is either bios or uefi... And couldnt find anything related to csm.

 

[RehabMan]

I looked for that in the bios settings but all I can set is either bios or uefi... And couldnt find anything related to csm.

Some allow you to set both legacy and UEFI. Maybe yours doesn't. If so, just boot Clover in legacy.