GTX 750ti problems.

[biri]

Hello!

I´m pretty happy with my hackintosh! It´s a custom Macintosh 512k with a AsRock B85m-itx, a i5-4460 and a EVGA gtx 750ti sc. The problem I have is that the graphics card works great, but I have a 2 monitors setup, with 2 different resolutions one 1920x1080p and the another one 2560x1080p. The problem is that the 2560x1080 monitor only outputs 1920x1080, and in windows the resolution is correct (2560x180)! What can I do?
Thank you.

 

[slim.jim]

You might need to use switchresx to enable the 21:9 resolution.

 

[biri]

Hello!
Thank you for your reply! I have tried with SwitchResX but nothing! I dont know what to do! I have change the resolution in SwitchresX but I only get 47Hz and the screen says invalid input
Thank you!

 

[slim.jim]

Hello!
Thank you for your reply! I have tried with SwitchResX but nothing! I dont know what to do! I have change the resolution in SwitchresX but I only get 47Hz and the screen says invalid input
Thank you!

Well it is invalid because it doesn't support the 47Hz.

What connection are you using for each monitor?

 

[biri]

For the 1920x1080p screen DVI and for the 2560x1080 screen hdmi.

 

[biri]

The model of the screens[h=1]LG 25UM57-P 25" and Viseo 220Dx[/h]

 

[Fl0r!an]

A patch to remove the pixel clock limit might help. I never had to do this myself, so I can't help you with that.

If you can't get it working with software modifications I'd suggest connecting your display with an active DisplayPort to HDMI adapter.
Native HDMI ports are often limited to 1080p in OS X, DisplayPort isn't.

 

[biri]

Oh my god!
Thank you guys!
I have found this page: https://github.com/Floris497/mac-pixel-clock-patch,
if anyone have the same problem!

 

[Fl0r!an]

Cool, glad it works!