Displayport & 3 displays Sapphire HD 5750 1GB GDDR5 problem with Lion

starobrno1 · July 14, 2012

Is there any way somebody could work something out for the Sapphire HD 5750 1GB GDDR5 videocard so that the displayport will work. Ive been trying to make it work for over a year now but theres no way to make it work no matter what the heck I do. I want three displays and that should be possible with this card and it works in win 8 out of the box with no extra drivers or anything so to me it seems its just crazy it wont work in os x. Ive read up on every bit of info I could find on the internet so Ive tried everything even with Lion with no success.

My mobo is an Asus P6T SE cpu is i7 930 and I use Fabios DST.aml and the rest of the files from that thread so the computer runs really good. It works good with two displays after editing the ati5000controller.kext. AND I have an ACTIVE adapter for the displayport. (Hell this mobo wont even let me use my two good old 7300 gs videocards that works supergood with my GA mobos so is this an Asus problem or what?)

And Yes Im using a modern enough chameleon for this to work and it doesnt matter if I type in GraphicsEnabler=Yes or =No in the org.chameleon.boot.plist

Like I said Ive tried with both snow leo 10.6.8 retail and Lion retail

TH3L4UGH1NGM4N · July 14, 2012

The issue seems that your current FB isn't detecting the DP. Which Framebuffer are you using with your card?

starobrno1 · July 14, 2012

I think youre right cause it looks like it should work in system settings cause it actually show up there but I just dont get no picture. When I klick on the third display the red square round the display symbols lights up so you can see a little of it in the end of the second display. The problem is I dont use anything like ATY_iniy just the original ATI5000Controller so Im not sure what FB I use at this time. Ive done a whole lot of experimenting though and then I used Vervet.

Edit: I missunderstod about Framebuffer so I tried check out in the plist for the ATIFramebuffer kext but it doent say anything I can underst and I dont really know what to look for lol.

TH3L4UGH1NGM4N · July 14, 2012

Don't worry too much about not understanding what's going on in the file it wasn't mean to be so easily readable.

Okay so let's start with the ports your loaded up FB is recognizing by typing in terminal

ioreg -l | grep ATY

For me, it shows 5 connectors and I can tell the first two (my two DVI ports because I know the ID numbers) are active because if you look under the the ATY,Gibba@0 and ATY,Gibba@1, You'll see a string IODisplayPrefsKey that shows some display information that corresponds to the connection from the gpu to the monitor.

the @ {number here} typically means the connector where in most cases, @0 is your top most DVI, @1 would be the bottom then 2- what ever number would be the other ports going to the right.

Screen%20Shot%202012-07-14%20at%207.34.53%20PM.png

To find out which IDs match with the port you could just trial and error on each port and see which ones the IODisplayPrefsKey changes to.

Now when you run that you should be able to see how many available connections the Vervet FB is allowing you. If anything, you might have to edit the Vervet personality so that it properly recognizes your DP.

starobrno1 · July 14, 2012

Thanks for your help your very kind. Im gonna look in to what you say here some more to see if I can learn something, Im an old guy 59 years old so my brain is running a bit slow these days Im afraid lol.

What I did today was replacing langur in the plist of the ati5000controller kext with Vervet, then I tried switching between graphicsenabler no and yes in the orgchameleonboot plist. I also tried adding aticonfig=Vervet to it but non of that made any difference Im afraid lol.

Its just a shame I cant make better use of this computer since it runs so good in all other aspects. I wanna replace my old GA EP45 DS3 Q6600 computer with this one. I have a couple of SSD drives in it with snowleo and lion and even a caviar black satadrive with win8 on it and it runs just so good except I cant get three monitors to work on it with osx. With win8 it just works.

Ive tried with my two 7300 gs Nvidia cards that works supergood even up to four displays with the old GA mobo and now with this Sapphire 5750 card and it just wont work what the heck I even do lol.

Anyway thanks again for your help.

TH3L4UGH1NGM4N · July 15, 2012

Wow, woulda never suspected I was dealing with a hackintosh veteran over there no problem though, always glad to help out.

I think for your card though Vervet is the best bet but if you don't mind try running that command and paste a screenshot of what it displayed.

I'm running on my ol reliable GA-EP43-UD3L that's been running strong since 10.5 days and it has never disappointed although I want something newer because my aging OC'd Q8200 is showing it's age a bit when it comes on the rendering. Have you by chance tried using the 5750 and a 7300 gs card to work in tandem? I know I've seen on netkas two different gpus running together in one system.

starobrno1 · July 15, 2012

Im afraid mine looks nothing like yours theres no ATY,gibba@ at all in there far as I can see lol

| | | | | "ATY,bin_image" = <55aa7ce925020000000000000000000000000000$

| | | | | "ATY,drvincom" = <84ac45817fffffff00202a0f80ffffff>

| | | | | "ATY,Zonalis" = {"aty_config"={"CFG_NO_PP"=Yes}}

| | | | | "ATY,Langur" = {"aty_config"={"CFG_FORCE_ICLK"=Yes}}

| | | | | "ATY,Orangutan" = {"aty_config"={"CFG_GPIO_HIGH"=131104}}

| | | | | "ATY,Hoolock" = {"aty_config"={"CFG_FORCE_ICLK"=Yes}}

| | | | +-o ATY,ATY,RadeonFramebuffer@0 <class AtiFbStub, id 0x1000004$

| | | | | +-o ATY_ATY,RadeonFramebuffer <class ATIFramebuffer, id 0x10$

| | | | +-o ATY,ATY,RadeonFramebuffer@1 <class AtiFbStub, id 0x1000004$

| | | | | +-o ATY_ATY,RadeonFramebuffer <class ATIFramebuffer, id 0x10$

| | | | +-o ATY,ATY,RadeonFramebuffer@2 <class AtiFbStub, id 0x1000004$

| | | | | +-o ATY_ATY,RadeonFramebuffer <class ATIFramebuffer, id 0x10$

| | | | +-o ATY,ATY,RadeonFramebuffer@3 <class AtiFbStub, id 0x1000004$

| | | | | +-o ATY_ATY,RadeonFramebuffer <class ATIFramebuffer, id 0x10$

TH3L4UGH1NGM4N · July 15, 2012

Nah you won't see ATY,Gibba because I'm using a 6870 so that's my FB lol. Your system currently is loading the default Radeon FB it isn't loading up Vervet or where you see the RadeonFrambuffer it would be Vervet. The default FB recognizes 3 ports although the last one doesn't seem to have a @4 next to it so it might be the issue why the 3rd monitor (DP) isn't working.

starobrno1 · July 15, 2012

You think I should go back to vervet in the ati5000controller and run that command in terminal again? I changed it back to langur since it didnt make no difference.

Yeah I have one GA EP35 DS3R hackmac and my main EP45 DS3 and this Asus comp and the GA gear really rocked and probably still do (I mean newer GA hardware). I tell you this Asus mobo really runs good though so it would be cool to get a chance to run it the best it can before I move on to an ivybridge build.

This is what I get with Vervet in the plist

| | | | | "ATY,bin_image" = <55aa7ce925020000000000000000000000000000$

| | | | | "ATY,drvincom" = <847c44817fffffff00889b0f80ffffff>

| | | | | "ATY,Zonalis" = {"aty_config"={"CFG_NO_PP"=Yes}}

| | | | | "ATY,Vervet" = {"aty_config"={"CFG_FORCE_ICLK"=Yes}}