Jump to content

Brand New Apple Cinema Display 27" not working! HELP!


14 posts in this topic

Recommended Posts

Hi!

I've used my hackintosh comptuer for a while now. I have a 27" DELL screen connected already, which works like a charm (using a DVI-D cable).

But now I bought a new screen (an Apple Cinema Display 27"), and I bought an adapter from minidisplayport to displayport which goes into my graphics card.

Specs of computer:

Asus Sabertooth x79 motherboard
GeForce GTX 660
Intel 3930k processor 
etc.

I get absolutely NO signal what so ever to my apple cinema display 27" which is connected to the displayport input of my graphicscard.

I read something about UEFI problems with displayport/cinema displays

but is there a fix for it? I really need to get my brand new cinema display to work with my hackintosh! It was expensive as hell aswell.

please, someone help me. I would so much appreciate the answers.

Thanks alot!

Best,

J

Link to comment
Share on other sites

This is my setup:

 

DbuRZPq.png

 

Used to have a 27" but downgraded back to 24.

It should work right ootb, no matter 24" or 27".

Most probably the adapter you're using is faulty, seen this before with cheap Chinese cables and adapters.

Also make sure you don't have a thunderbolt screen! that one won't work.

If you don't know: look for an extra usb cable for sound/webcam/back usb ports.

Link to comment
Share on other sites

This is my setup:

 

DbuRZPq.png

 

Used to have a 27" but downgraded back to 24.

It should work right ootb, no matter 24" or 27".

Most probably the adapter you're using is faulty, seen this before with cheap Chinese cables and adapters.

Also make sure you don't have a thunderbolt screen! that one won't work.

If you don't know: look for an extra usb cable for sound/webcam/back usb ports.

 

Thanks alot for the quick answer.

 

I have the same graphics card, but not the Ti version!

 

I'm 100% positive that it's NOT a thunderbolt display. It's the normal mini displayport display.

 

So.. what adapter do you use and what do you recommend using? Are you sure its the adapter? I read something about that its problem if u have UEFI biofs. Some people thought it was the adapter and bought a new one but it still didnt work.

 

Thanks alot for the quick answer. I appreciate it alot!

 

Best,

 

J

Link to comment
Share on other sites

This is the one I'm using; http://www.startech.com/Cables/Audio-Video/DisplayPort/6in-DisplayPort-to-Mini-DisplayPort-Video-Cable-Adapter-Male-to-Female~DP2MDPMF6IN

 

Had this on several cards, nvidia, ati on osx/linux/windows and it always works.

At my office we use these cables on 27" after upgrading from mac pro's to dells and it even works with quadro cards.

I'd say see if can have the adapter replaced, at least I can recommend the store I linked to.

Link to comment
Share on other sites

This is the one I'm using; http://www.startech.com/Cables/Audio-Video/DisplayPort/6in-DisplayPort-to-Mini-DisplayPort-Video-Cable-Adapter-Male-to-Female~DP2MDPMF6IN

 

Had this on several cards, nvidia, ati on osx/linux/windows and it always works.

At my office we use these cables on 27" after upgrading from mac pro's to dells and it even works with quadro cards.

I'd say see if can have the adapter replaced, at least I can recommend the store I linked to.

 

Thanks alot. But as I live in Sweden, its hard to buy from other countries and it takes extremely long time to recieve it. IF I recieve it at all.

 

What do you think about this adapter:

 

http://www.dustinhome.se/product/5010465399/deltaco-displayport-displayport-mini-displayport/?s=c#intcmp=con_sel ?

 

And this is the adapter I'm using right now:

 

http://www.kjell.com/sortiment/dator-kringutrustning/kablar-adaptrar/displayport/mini-displayport-till-displayport/mini-displayport-adapter-p69065

 

 

SO... lets say a new adapter doesn't work at all. What do I do? I suspect its not the adapter. I suspect its an UEFI bios issue as I've read about it alot on the internet that Cinema Displays doesnt work at all with UEFI bios. I'm so sad about this.. looks like I bought this screen but it simply cannot work for me :/ it's like throwing away all my money.

 

The only solution I saw people found was switching graphics card from gigabyte to something else. In my case I have NVIDIA GeForce 660 and no Gigabyte graphics card.

Is it possible to buy an adapter from minidisplayport to DUAL DVI? (DVI-D). That would most likely solve the issue as I think its in the displayport my issue is

Link to comment
Share on other sites

Well you could always see if you can borrow another graphics card to find out, probably the easiest solution.

For me most of the time they ship products to the Netherlands so most shops do ship to Europe.

 

As I don't own or tried those adapters I could not even begin to comment on them.

What you have could still be a quality product except you had bad luck and got a faulty one.

 

About the uefi... I got a maximus v gene + asus directcu ii 660ti with uefi firmware and it works like a charm with both 24" and 27"... so again if it's a uefi issue it's probably more related to the firmware implantation than uefi itself.

Link to comment
Share on other sites

Well you could always see if you can borrow another graphics card to find out, probably the easiest solution.

For me most of the time they ship products to the Netherlands so most shops do ship to Europe.

 

As I don't own or tried those adapters I could not even begin to comment on them.

What you have could still be a quality product except you had bad luck and got a faulty one.

 

About the uefi... I got a maximus v gene + asus directcu ii 660ti with uefi firmware and it works like a charm with both 24" and 27"... so again if it's a uefi issue it's probably more related to the firmware implantation than uefi itself.

 

Ok I'll try with a new adapter. If that doesnt work. Can I reach u somewhere for some help ? I seem to have trouble finding people willing to help at all. I appreciate this very much. Thanks alot.

Link to comment
Share on other sites

Hello!

 

You could try to make a temporary Chameleon bootstick. Some hundred mb are enough for it. Assuming, that you have installed all kexts to S/L/E. If you have no PM patched bios, back up AICPUPM.kext, run patch on installed one, generate SSDT.aml with Pike script. (for Clover place back untouched one)

 

Format usb-stick MBR one partiton hfs+, install Chameleon to stick with necessary settings by creating Extra folder. Place your current DSDT.aml (you should extract it of running system with maciasl or Dsdt-editor) and the generated SSDT.aml file in Extrafolder. Create SMBiosfile with your current used SMBios type and SN, also placed in Extra of usb.

Copy over mach_kernel from root of your system to root of usb-stick, enable in Bios legacy boot, and try with flags -f -v to boot with the chameleonstick your system.

 

If your screen is staying black again, you have for sure a not working adaptor.

 

Have fun.

Link to comment
Share on other sites

Hello!

 

You could try to make a temporary Chameleon bootstick. Some hundred mb are enough for it. Assuming, that you have installed all kexts to S/L/E. If you have no PM patched bios, back up AICPUPM.kext, run patch on installed one, generate SSDT.aml with Pike script. (for Clover place back untouched one)

 

Format usb-stick MBR one partiton hfs+, install Chameleon to stick with necessary settings by creating Extra folder. Place your current DSDT.aml (you should extract it of running system with maciasl or Dsdt-editor) and the generated SSDT.aml file in Extrafolder. Create SMBiosfile with your current used SMBios type and SN, also placed in Extra of usb.

Copy over mach_kernel from root of your system to root of usb-stick, enable in Bios legacy boot, and try with flags -f -v to boot with the chameleonstick your system.

 

If your screen is staying black again, you have for sure a not working adaptor.

 

Have fun.

 

Wow it sounds like a complicated process. I dont even know half of this as Im not so good at this..

 

Anyone of u willing to help me through this? hehe. I would really need some help.

Link to comment
Share on other sites

Hello!

 

Have you tried to set Inject NVDA in gfx section of clover config.plist to true?

 

Can you please upload the output of IORegistryexplorer, vers. 2,1. with your other display attached? I have the suspicion, that your  mini dp is not detected with the correct connector info and  is therefore not working with your Cinema display. You could also try to boot with your old display and hotplug the cinema display. If this works, do also an IORegistryExplorer output with the attached Cinema display.

 

Have fun.

Link to comment
Share on other sites

Hello!

 

Your posted IOReg shows, that you have on your gfx card four display jacks (NVDA,Display-#@x), dedected with the common, nothing further on specifying value: connector-type <00 08 00 00>.

 

Your by bootloader dedected NVCAP  shows up with this data: <05 00 00 00 00 00 ff ff ff ff 00 00 00 00 00 0e 00 00 00 00>. This value seems to be Apple like, but is missing important informations. If one is looking on IOREG outputs of real Mac devices with nvda gfx ( Here you go for them: http://tdev.me/2010/12/apple-hardware-dumps/ ) the sequence "ff ff ff ff" is populated with other values than the before ones.

 

My personal opinion is, that your issues with the Cinema Display are not related with UEFI. Even in Legacy mode this issues will also exist. Clover, based on the nvda gfx dedection routines of Chameleon (Enoch) is sometimes not able to get especial configurations working. What is good enough to get your Dell display working, does not reach to do it also with your Cinema Display.

 

The solution for your problem should be to define a correct property string with proper ports and other well done properties. This process is one, that needs good research for collecting the necessary informations, learning something by yourself, and getting on trials perhaps many errors.

 

The best way is to learn how to do it by yourself and try it, because you have the hardware, on which it should work.

 

A good point for starting your resarch is using the forum search or look here: http://www.projectosx.com/forum/index.php?act=idx

 

But for safety purposes you should create a Clover boot stick with at least some 100 mb, mbr format, fat 32 formated, and with copied over current used Clover folder. Set there your generated trial property string. If it does not work, you can boot your system as before.

 

Have fun.

Link to comment
Share on other sites

  • 5 weeks later...

Hi guys, did you get this fixed?

 

I have decided to venture from chimera (which works fine) to clover and like what I see but 8/10 times when I boot I just get a black screen with my Cinema Display. It sounds like the computer is booted but it is just not reflected in the screen.

 

I have my mini display port running to a 780 display port card.

Sig as below.

 

Thanks.

Link to comment
Share on other sites

 Share

×
×
  • Create New...