high Sierra blank screen amd radeon hd 6450

[kingbrazile]

and used this command to rebuild kext cache
sudo touch /System/Library/Extensions && sudo kextcache -u /

 

[nomde1999]

I am having a similar issue where, in verbose mode, I see the info on the screen but then I get a black screen.

I have attached my CLOVER directory which include a GPU dump (F6) into the misc directory.
I hope someone can help me.

Here is my config ( From the about screen) ;

Model Name: iMac
Model Identifier: iMac14,2
Processor Name: Intel Core i7
Processor Speed: 4 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 8 MB
Memory: 16 GB
Boot ROM Version: IM142.0123.B00
SMC Version (system): 2.15f7
Serial Number (system): D25LHACKF8JC
Hardware UUID: 6B4DF0EF-AE6D-5625-84EE-11072A34F12F

 

[kingbrazile]

after install Sierra kext to high Sierra

IOAccelerator2D.plugin
IOAcceleratorFamily2.kext

3d accelerator work fine but get black and white color

 

[radogado]

Sapphire HD 6450 works OOB in 10.13.3 (ASRock H110M-ITX/ac with Pentium G4560). The only problem was the 10-bit colour shifting, fixed by setting the resolution in Display Menu. After a safe boot followed by normal boot, the problem went away. It runs smoothly.

Good luck.

 

[studiopaul]

HI im a NOOB to hackintosh and wanted to see if there was any updates on AMD HD 6450 and OSX 10.13.4
The AMD HD 6450 is a nice low profile card that fits perfectly inside my HP compact 8300 SFF

High sierra shows;
imac 27inch, late 2013
processor 3.39 GHZ intel core i7
memory 16GB 1600MHz DDR3

Graphics!!!!: AMD Radeon HD 7470 3MB thats a problem!

Hardware overview

model name: imac
model identifier: imac14,2
Processor name : intel core i7
Processor Speed: 3.39GHZ
no processors: 1
total cores: 4
L2 Cache per core: 256 KB
L3 Cache: 8MB
Memory: 16MB
Boot Rom version: IM142.0130.1300
SMC version (system): 2.15f7

My system boots up and is running, graphics are rough and starts to glitch using safari, sidebar scrolls, unable to adjust screen size etc..

 

[studiopaul]

hers the graphics report

AMD Radeon HD 7470:



Chipset Model: AMD Radeon HD 7470

Type: GPU

Bus: PCIe

PCIe Lane Width: x4

VRAM (Total): 3 MB

VRAM (Dynamic, Max):

Vendor: AMD (0x1002)

Device ID: 0x6778

Revision ID: 0x0000

EFI Driver Version: 01.00.3180

Displays:

Display:

Resolution: 1024 x 768 (XGA - eXtended Graphics Array)

UI Looks like: 1024 x 768

Framebuffer Depth: 24-Bit Color (ARGB8888)

Main Display: Yes

Mirror: Off

Online: Yes

Automatically Adjust Brightness: No

 

[sskgaiqny]

This is a common problem in High Sierra can you upload your Clover folder in zip format and omit themes folder out of it to keep it smaller

I also have the same black screen problem，can you help me if you have time.
https://www.tonymacx86.com/threads/help-ati-hd7850-black-screen-in-high-sierra-13-6.266403/