Fuzzy screen on boot with HD4600

[edmoncu]

In my case, I waited for 20 or so seconds of that noise screen and the display fixes by itself.

 

[Xetelc]

Hello, i have the same problem with Yosemite, mobo Z97X-UD3H (Hd4600). I tried all IgPlatformId values in clover with same result.... Any idea? Thanks..

 

[Cedla]

Looks like 0C260000 is for mobile HD4600 graphics.
Desktop HD4600 graphics platform ID is 0D220003 ("0x0D220003" in Clover).

 

[Xetelc]

Thank you Cedla, but i have that id in clover...

<key>ig-platform-id</key>
<string>0x0d220003</string>

any other idea about this?

thanks.

 

[Cedla]

Actually, you only need to have Graphics / Inject Intel set to true.
Setting Clover's ig-platform-id property is optional in Yosemite for desktop HD4600 graphics.

 

[Xetelc]

yes, i know, but it does not work for me.
Do you have the same mobo than me? what is your config?

 

[Cedla]

Same mobo: Gigabyte GA-Z97X-UD3H.
And nothing special in my setup (using Clover): View attachment config.plist

 

[ajaytonpe]

may i know how and where to add these values and string?
sorry as am totally new into this

 

[ilpeirano]

I have the same problem.

When I connect HDMI I get the fuzzy screen. With DVI I get black screen.

Tried to change sysdef, ID platform , different Multibeast configuration and many other things with no success.

Could someone help me?

System specs: Gigabyte Z97n wifi, Intel i5 4460, hd4600, 4gb single Kingston Hyperx Fury 1600mhz

 

[rimkashox]

Guys, same here, I tried everything you suggested no luck.

I'm injecting via DSDT, all clean, normal HD4600 from latest i7 processor id:

"AAPL,ig-platform-id", Buffer() { 0x03, 0x00, 0x22, 0x0D } (it's the only id that actually works fantastic)

Framebuffer is Native Azul, QE/CI all good, TODO fantastic ! Just one thing.. 10 sec of FUZZY analog signal before login screen ?? Connected to HDMI !

Anyone has a solution to get rid of this annoying 10 sec ...