post installation problems

[AltoLama]

Hi guys, i have just finished the installation of high sierra 10.13.4 on my coffee lake.
I have encountered two problems that I'm not able to solve:

1- the resolution is locked at 1024 x 768, i'm not able to set 1920x1080

2- every time i start the bootloader from the usb flashdrive, it took a lot of time (120 seconds minimum), also, when i start high sierra (installed on hdd) it does not always start correctly, 2 times out of 3 comes the symbol of the prohibition and I have to restart the pc.

this means that when I have to start high sierra I have to wait about 5 minutes, i don't know if is fault of the flashdriver


thanks to everyone and to those who can help me

ps. if you need some additional information I'm ready to answer

 

[theruck]

for start, post your clover config
have you installed the nvidia web drivers already?
why are you starting the bootloader from the usb flash drive?

 

[AltoLama]

for start, post your clover config
have you installed the nvidia web drivers already?
why are you starting the bootloader from the usb flash drive?

The tutorial that i followed finished with the installation of macosx from the flashdrive, the bootloader is on on the flashdrive yet.
i have already installed the nvidia drivers,
What is the clover config? i use unibeast

 

[theruck]

it is hard to help if you do not know what you are doing. so i guess your best chances are with multibeast

 

[AltoLama]

it is hard to help if you do not know what you are doing. so i guess your best chances are with multibeast

i have already used multibeast as soon as I finished the installation...
Now what can i do?

 

[AltoLama]

it is hard to help if you do not know what you are doing. so i guess your best chances are with multibeast

if you can explain me not too implicitly I can understand

 

[theruck]

if you do not know what clover config is and you did not tell that you have used multibeast then i can not help you, sorry my wizards crystal ball is broken

 

[AltoLama]

sorry for the trouble, talk to me as if I understand well, I will not ask you any questions, if you tell me how to do it, I can do it myself.. It is very important for me to be able to use hackintosh... thank you