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GTX 560 Ti dual monitor / audio problems

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Hello All,

First of all, I have a 660ti and have been experiencing the same exact issue. I'm running two 23" Apple Cinema displays and sure as clockwork, if the computer is inactive for more than a few hours, only one monitor comes up. Usually restarting does the trick and both monitors come up, however if my computer has been off for a while (say a long week-end) then restarting the machine after the first time doesn't bring the 2nd monitor up. Only solution at that point is to plug and unplug the second monitor during boot up and that seems to fix it....either way a MASSIVE PITA!

I'm curious about iMac86's solution, unfortunately I don't have access to a Windows machine. Could anyone upload the ROM somewhere? Is the 550ti ROM solution not going to work on the 660ti?

Any help would be appreciated.
 
Hey guys,

Dont have access to windows on this machine. Is there any other way to get my hands on the ROM file?
 
Dear all,

I'm considering a GTX 560 ti for a hackintosh; I need a card that'll do dual DVI-I so I can convert both monitor outputs to analogue VGA at 1024x748 and drive a couple of VGA-input projectors.

My question; once I get the card working in Lion / Mountain lion with whatever excellent patches and advice I've gleaned form the rest of the thread...

Will OSX Lion / Mountain Lion successfully drive the analogue pins of the DVI-I ports? (WIN)
OR:
Will I get a beautiful, sharp DVI-D dual monitor signals, but absolutely nothing when I hook up 2 passive DVI-I to VGA adapters? (FAIL)

btw, if anyone's prepared to test this with a couple of analogue VGA-input monitors, I can send them a couple of DVI-I to VGA adapters if needed. This is supposed to go live within 14 days, so time is short.

-Ben.
 
iMac86 said:
Hi guys, I found a solution but it needs testing.
Steps:
1- Boot into windows, download GPU-Z and save the rom file (or create a "NVFLASH" usb image").
2- Rename the ROM to "VenID_DevID.ROM (i.e 10DE_1200.ROM).
3- Place it in "Extra" in Mac OS X.
4- In org.chameleon.boot.plist make sure of the following:
Code: 
<key>GraphicsEnabler</key>
 <string>Yes</string>
 <key>UseNvidiaROM</key>
 <string>Yes</string>
 <key>VBIOS</key>
 <string>Yes</string>
Reboot and voila.
Click to expand...

I tried this solution several times but without success.:( Upon bootup I get a screen that says "Unable to Read NVidia Rom" and then both screens go to standby. I'm wondering if I am doing something wrong. I am using a EVGA GTX 560 (non ti) but have had the same exact issue with dual monitors as the TI model. I ran GPU-Z and copied the Rom, named it 10DE_1201.ROM (which was what GPU-Z told me the VenID_DevID would be. Copied the rom into Extra and updated the chameleon.boot.plist. Should I be installing anything for graphics with MultiBeast? Should I be installing the CUDA drivers? If anyone has any insight into why this wont work me I would greatly appreciate it! :thumbup: System is 10.8.2/H77-DS3H/i7-3770.

Thanks
 
figured out my issue! needed to set system def in multibeast to iMac 12,2 in addidtion to the original fix. now both of my monitors work like a dream!
 
iMac86 said:
Hi guys, I found a solution but it needs testing.
Steps:
1- Boot into windows, download GPU-Z and save the rom file (or create a "NVFLASH" usb image").
2- Rename the ROM to "VenID_DevID.ROM (i.e 10DE_1200.ROM).
3- Place it in "Extra" in Mac OS X.
4- In org.chameleon.boot.plist make sure of the following:
Code: 
<key>GraphicsEnabler</key>
 <string>Yes</string>
 <key>UseNvidiaROM</key>
 <string>Yes</string>
 <key>VBIOS</key>
 <string>Yes</string>
Reboot and voila.


* If anybody has the Gainward 2GB version please attach a copy of you IOReg.
* If anybody has DSDT please try the following 560 Ti patch and tell me the results:
Code: 
                Device (GFX0)
                {
                    Name (_ADR, Zero)
                    Method (_DSM, 4, NotSerialized)
                    {
                        Store (Package (0x1A)
                            {
                                "@0,compatible", 
                                Buffer (0x0B)
                                {
                                    "NVDA,NVMac"
                                }, 
                                "@0,device_type", 
                                Buffer (0x08)
                                {
                                    "display"
                                }, 
                                "@0,name", 
                                Buffer (0x0F)
                                {
                                    "NVDA,Display-A"
                                }, 
                                "@1,compatible", 
                                Buffer (0x0B)
                                {
                                    "NVDA,NVMac"
                                }, 
                                "@1,device_type", 
                                Buffer (0x08)
                                {
                                    "display"
                                }, 
                                "@1,name", 
                                Buffer (0x0F)
                                {
                                    "NVDA,Display-B"
                                }, 
                                "built-in", 
                                Buffer (One)
                                {
                                     0x01
                                }, 
                                "device_type", 
                                Buffer (0x0C)
                                {
                                    "NVDA,Parent"
                                }, 
                                "model", 
                                Buffer (0x1A)
                                {
                                    "NVIDIA GeForce GTX 560 Ti"
                                }, 
                                "NVCAP", 
                                Buffer (0x14)
                                {
                                    /* 0000 */   0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00,
                                    /* 0008 */   0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0A,
                                    /* 0010 */   0x00, 0x00, 0x00, 0x00
                                }, 
                                "rom-revision", 
                                Buffer (0x0F)
                                {
                                    "70.24.2E.00.00"
                                }, 
                                "vendor-id", 
                                Buffer (0x04)
                                {
                                     0xDE, 0x10, 0x00, 0x00
                                }, 
                                "VRAM,totalsize", 
                                Buffer (0x04)
                                {
                                     0x00, 0x00, 0x00, 0x80
                                }
                            }, Local0)
                        DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                        Return (Local0)
                    }
                }
* I want to enable the HD4000 and the discrete card how can I do that?
Click to expand...

I set use "onboard" as primary in BIOS. This enables HD4000 and don't need any modification.
 
Is anybody still having problems with this? I did this process about 6 months back and have still been running into a problem where it intermittently works.

When it doesn't, I have to just shut down my computer for around 24 hours and turn it on again for the dual screens to function.

For this reason, I just keep my computer on most of the time. Sleeping is fine.

Any ideas on what to do?
 
I had a 660ti and had an intermittent issue where one of the monitors wouldn't come up at times. My solution was to put the monitors on a different power strip, and turn them on last only after the computer was fully booted. By doing this, they both came on all the time, but only if the monitors received power after the full boot.

I recently upgraded to a 770 and so far (knock on wood) both monitors seem to come up all the time regardless of when they get power.

Dunno if this helps.
 
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