macOS 10.12.2 + HD 4600 (i3 4330) -> 1440p ??

[j3cam]

Hi,

I've an issue with my current installation. I have a screen able to display at 2560x1440, I din't have any problem with in my previous installation (Lion), but I'm not able to get this resolution now (only 1920p). Connected with hdmi 1.4

Could you help me ?
(I'm a newbie ! )

Should I install 10.2.1 ?

Best Regards

 

[elektrolurch]

I'm pretty sure downgrading your OS version won't help.

Apple and HDMI don't work really fine with each other, I'd suggest, you try either DP or dual link DVI and then obtain your resolution.

 

[j3cam]

Same issue with DVI and no DP on my motherboard
Maybe should I buy an adaptator DVI > DP or HDMI > DP ?

 

[Anatharias]

I resolved that issue by creating an EDID patch for my u3014 (30" 2560x1600 through HDMI)
https://gist.github.com/adaugherity/7435890
Place it in /System/Library/Displays/Contents/Resources/Overrides

You may also need the Pixel Clock patch v2

Give it a try

 

[VioletDragon]

Hi,

I've an issue with my current installation. I have a screen able to display at 2560x1440, I din't have any problem with in my previous installation (Lion), but I'm not able to get this resolution now (only 1920p). Connected with hdmi 1.4

Could you help me ?
(I'm a newbie ! )

Should I install 10.2.1 ?

Best Regards

If your using onboard iGPU have you done correct Frame Buffer Patch?

 

[j3cam]

It's GPU from i3-4330... correct frame buffer patch ?? I don't know what is it.. could you please give me some explications or a link ?

Can I get a good quality with Pixel Clock ?

Maybe I should start by test the patch...

 

[VioletDragon]

It's GPU from i3-4330... correct frame buffer patch ?? I don't know what is it.. could you please give me some explications or a link ?

Can I get a good quality with Pixel Clock ?

Maybe I should start by test the patch...

Cant tell much without ioreg. Attach ioreg. [Guide] How to Make a Copy of IOReg | tonymacx86.com

 

[j3cam]

Like this ?

Thank you for your help !

edit : ZIP attach removed

 

[VioletDragon]

Like this ?

Thank you for your help !

No. Your back at square one. Powermanagement is not implemented neither is AppleLPC. Attach Clover Folder with Themes removed ZIP attach.

 

[j3cam]

Mmm I try to understand what I have to do...Clover Folder with Themes ? where is it ?