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5K Resolution (5120x2880) via NVIDIA Drivers on Dell UltraSharp 27" Monitor

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running a 960 gaming card, display would not get to anything above 2560x1440... That's on a single cable. On two cables I got stuck in boot or if using nv_disable=1 I got a resolution of 1600.
 
Guys do you know if is it possible to have 2880p with an AMD card? Like 390/390X? Or maybe the newer RX 480?
If not, I will have to buy the 970 or 1060. I am quite an AMD fan lol
 
It also works with GTX960
  • El Capitan 10.11.6 / 10.11.5
  • GTX960 with 2xDP1.2
  • NVIDIA Web Driver 346.03.15(10.11.6) / 346.03.10(10.11.5)
  • 1st post boot flags (nv_spanmodepolicy=1, nvda_drv=1)
5120x2880@60hz
Schermata 2016-07-26 alle 11.57.31.jpg
this is the specific card used
https://www.amazon.it/gp/product/B00SKTF83W/?tag=tonymacx86com-21
 
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It also works with GTX960
  • El Capitan 10.11.6 / 10.11.5
  • GTX960 with 2xDP1.2
  • NVIDIA Web Driver 346.03.15(10.11.6) / 346.03.10(10.11.5)
  • 1st post boot flags (nv_spanmodepolicy=1, nvda_drv=1)
5120x2880@60hz
this is the specific card used
https://www.amazon.it/gp/product/B00SKTF83W/?tag=tonymacx86com-21

I'm using a 960 G1 4GB model, stuck at 2880 on 2xdpi1.2 I can get 4K if I only run one dp1.2-minidp cable. Tried all settings, system definitions, etc. 5K was impossible.
 
I'm using a 960 G1 4GB model, stuck at 2880 on 2xdpi1.2 I can get 4K if I only run one dp1.2-minidp cable. Tried all settings, system definitions, etc. 5K was impossible.
On my Nvidia Titan X, I started the computer with only the mini DisplayPort cable connected and booted at 4K. Then when OS X has finished starting up, I also plug in the dual DisplayPort cables. The monitor remains at 4K until I switch the input to dual DisplayPort (leaving the mini DisplayPort cable plugged in). The monitor goes black, then comes back in 5K mode. I didn't even have to power it off or unplug it. I can then use the 2560 x 1440 HiDPI mode which uses the 5120 x 2880 resolution. If I switch back to mini DisplayPort, then the monitor goes to 4K resolution, but I don't see anything because the OS thinks there are two monitors plugged in, and all my windows are on the hidden 5K frame buffer. At this point, I can use another Mac to Share Screen, and see both the 5K and 4K frame buffers. When I switch the monitor input back to 5K mode, the 4K frame buffer is removed from the Share Screen UI, and I see the 5K frame buffer in both the Share Screen app, and on the Dell monitor.

I can do 2560 x 1440 HiDPI while on 4K but it uses a 5K frame buffer scaled to 4K so it's not as clear as 2560 x 1440 HiDPI while on 5K.

Remember that the Dell monitor is much slower than every other monitor at switching resolutions or waking from sleep or whatever (Dell has documented this on their website) because of the 5K feature. I have Monitor Sleep set to disable in the Energy settings of the Dell monitor menu which helps with some issues.

I am still using Mac OS X 10.11.5.

I switched back and forth between inputs a few more times, and eventually got a kernel panic in NVDAResmanWeb.
 
On my Nvidia Titan X, I started the computer with only the mini DisplayPort cable connected and booted at 4K. Then when OS X has finished starting up, I also plug in the dual DisplayPort cables. The monitor remains at 4K until I switch the input to dual DisplayPort (leaving the mini DisplayPort cable plugged in). The monitor goes black, then comes back in 5K mode. I didn't even have to power it off or unplug it. I can then use the 2560 x 1440 HiDPI mode which uses the 5120 x 2880 resolution. If I switch back to mini DisplayPort, then the monitor goes to 4K resolution, but I don't see anything because the OS thinks there are two monitors plugged in, and all my windows are on the hidden 5K frame buffer. At this point, I can use another Mac to Share Screen, and see both the 5K and 4K frame buffers. When I switch the monitor input back to 5K mode, the 4K frame buffer is removed from the Share Screen UI, and I see the 5K frame buffer in both the Share Screen app, and on the Dell monitor.

I can do 2560 x 1440 HiDPI while on 4K but it uses a 5K frame buffer scaled to 4K so it's not as clear as 2560 x 1440 HiDPI while on 5K.

Remember that the Dell monitor is much slower than every other monitor at switching resolutions or waking from sleep or whatever (Dell has documented this on their website) because of the 5K feature. I have Monitor Sleep set to disable in the Energy settings of the Dell monitor menu which helps with some issues.

I am still using Mac OS X 10.11.5.

I switched back and forth between inputs a few more times, and eventually got a kernel panic in NVDAResmanWeb.

Just wondering, do you use mac pro 3.1 or iMac 17.1 or one of the other system settings? I've tried various ones, the only one that will boot are 3.1 and 17.1 The others result in black bootscreens or kernel panics.
 
If it can be of help, some details:
If you get kernel panic or black screen on boot, you can try to power on your monitor after your system is up and ready.
 

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Just wondering, do you use mac pro 3.1 or iMac 17.1 or one of the other system settings? I've tried various ones, the only one that will boot are 3.1 and 17.1 The others result in black bootscreens or kernel panics.
I'm using 17,1. The point of my post was, that if you can boot into 4K, then using that as a starting point, you should be able to transition to 5K (but I haven't tried other Nvidia cards)
 
I'm using 17,1. The point of my post was, that if you can boot into 4K, then using that as a starting point, you should be able to transition to 5K (but I haven't tried other Nvidia cards)
Hi Joe,

Yes I realised that, was just wondering as people seem to get different results with different profiles. Will give it another shot tomorrow and let you know how it goes.
 
Hi Joe,

Yes I realised that, was just wondering as people seem to get different results with different profiles. Will give it another shot tomorrow and let you know how it goes.
Also, you need to be able to use 4K from at least two of the Nvidia ports before you can even try 5K. If you can do that with you're Nvidia card (and also two monitors at the same time if you have more than one to test), then I see no reason 5K shouldn't work, unless the driver itself is crippled.
 
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