[SOLVED] Nvidia GeForce GTX 1080/1070

[asiga]

Win 10 + OS X work fine as long as you follow a certain procedure....which means you need to boot into Windows with iGPU and then switch to your Titan X. Then switch back to iGPU and shut it down/restart if you want to go into OS X. Your screen will be blank if you try to boot into OS X via nVidia card.

I would assume it's the same for Ubuntu. So you boot into Ubuntu with iGPU and switch to nVidia.

Thanks a lot. I haven't tested the Titan yet because I'm starting the installations in a few minutes, but I hope it will help me developing some GPGPU algorithms I'm designing in Linux.

BTW, what do you mean by "switch to iGPU" or "switch to the Titan"? Is just switching cables or are you talking about any Windows control panel or BIOS utility?

 

[izo1]

But why does one have to switch back before shutdown? If the iGPU's set as primary GPU shouldn't it be "fixed" in the BIOS, so that you can shut down, using the GTX switch cables AFTER shutdown and reboot into OS X using the iGPU?

Because if you have your monitor connected to the GTX10x0 card in Windows, and you shut down, if you restart again, you won't see POST and your Clover menu and you won't be able to boot into Windows. (because iGPU is set as primary).

When you set iGPU as "primary" in BIOS, it forces your mobo to recogize the iGPU as the main monitor to boot on from POST.

That's been my experience anyway, with a X99, Z97 and Z170 build. There is a "Multi-monitor" option in the Z170 (see my signature) but it still won't show the POST on the secondary GPU.

Give it a try yourself.

Put 2 monitors side by side and connect iGPU to 1 and the other to the GTX card. You will only see POST and Clover on one monitor.

If you DON'T set the iGPU as primary, you won't be able to boot into OS X. So this is the best solution at the moment along with being patient (and at the mercy of nVidia for new drivers).

It MAY be different on other motherboards, but I've tried on the above 3 Intel series chipsets.

Thanks a lot. I haven't tested the Titan yet because I'm starting the installations in a few minutes, but I hope it will help me developing some GPGPU algorithms I'm designing in Linux.

BTW, what do you mean by "switch to iGPU" or "switch to the Titan"? Is just switching cables or are you talking about any Windows control panel or BIOS utility?

Just talking about switching the cables from iGPU to nVidia card. Nothing else.

The best workflow is to set your iGPU as primary and follow the procedure in previous posts. I spent days agonizing over this and trying to figure out the easiest possible way to alleviate the lack of WebDrivers and this is the best I could come up with.

 

[diafebus]

The best workflow is to set your iGPU as primary and follow the procedure in previous posts. I spent days agonizing over this and trying to figure out the easiest possible way to alleviate the lack of WebDrivers and this is the best I could come up with.

There is no other way to boot from the GFX card instead and then switch screen in OSX? My setup is like that right now; I use the 1070 as main gfx but booting UEFI instead of Legacy it gives me full 2560x1440 so I'm good there, I can even watch films over there although it won't have any 3D acceleration for some stuff but for music workflow and watch some series and films is more than ok, then I had as a secondary a 650 I used to switch to that later and set it up as main screen on osx so it was just a matter of change the input from my screen. BTW I'd like to do the same without having 2 graphics cards inside the computer and be able to boot from 1070 like I'm doing now but have the HD4600 recognised aswel, there is no workaround? Because booting from 1070 is much simpler and I don't have to do weird screen and gfx switching either on Mac and PC.

PS: If not I can live with that until nvidia releases the drivers is not that terrible (for internet navigation is more annoying that has to be said)

 

[garner]

There is no other way to boot from the GFX card instead and then switch screen in OSX?

There doesn't seem to be any need to do any switching. You boot from the iGPU, then it will stay on iGPU if you load OSX whereas Windows will automatically activate the Nvidia card.

My setup now has the iGPU connected via DVI and the 1080 hooked up to the same monitor via DisplayPort. There are a couple of shortcut keys on the side of the monitor, which I've assigned to the DVI and DP inputs.

I just have to remember to switch the monitor back to DVI when rebooting if I used Windows last, otherwise it will still be set to DP and Clover will have a black screen. No need to unplug any cables or change any settings. When booting into Windows, the screen goes black after the Windows logo, which means it's time to switch inputs.

Edit: I noticed that because I had both the iGPU and Nvidia card connected to the monitor, Windows was treating it as a multi-monitor system. I could drag a window off the side of the main desktop, then switch inputs and see it rendered on a different desktop by the iGPU.

Anyway, in case that might cause problems in games or whatever, I went into the display settings menu and told it to only render on one desktop.

 

[izo1]

There doesn't seem to be any need to do any switching.

You have to switch if you have a monitor that has a single input -- in my case an Apple Cinema Display 27" (DP version).

 

[garner]

You have to switch if you have a monitor that has a single input -- in my case an Apple Cinema Display 27" (DP version).

Yes, true. But I guess most non-Apple displays will have multiple inputs, in which case the current situation with Apple and Pascal cards isn't actually that bad. I was hoping that I'd be able to leave the monitor on 'auto detect inputs' but, on my monitor at least, it seems that Clover launching via the iGPU keeps the display fixed on the iGPU input even after it has been switched off by Windows.

 

[izo1]

Yes, true. But I guess most non-Apple displays will have multiple inputs, in which case the current situation with Apple and Pascal cards isn't actually that bad. I was hoping that I'd be able to leave the monitor on 'auto detect inputs' but, on my monitor at least, it seems that Clover launching via the iGPU keeps the display fixed on the iGPU input even after it has been switched off by Windows.

I don't see how you can use the GTX1080 under OS X without a KEXT loaded. Everything is non-accelerated -- hence why iGPU is a better option and has decent performance for productivity work.

And yes, if you start up with iGPU, Clover will not show up on another input such as the one from GTX1080 -- so you have to stick to booting with iGPU for OS X (and also to see Clover menu to select Windows--but I assume you can do a blind select and boot into windows--i havent tried)

If you set your GPU to "Auto" in the BIOS, it will POST and Clover into the GTX1080, as far as I remember. In Auto, the BIOS selects the PCIe GPU as the primary automatically.

 

[garner]

If you set your GPU to "Auto" in the BIOS, it will POST and Clover into the GTX1080, as far as I remember. In Auto, the BIOS selects the PCIe GPU as the primary automatically.

I meant ''auto'' for the monitor inputs. My monitor will detect which input is active (VGA, DP or DVI) and switch to it automatically, but only when it's first turned on. When Windows deactivates the iGPU, unfortunately the monitor won't auto switch to the other input. Other monitors might behave differently.

 

[izo1]

I meant ''auto'' for the monitor inputs. My monitor will detect which input is active (VGA, DP or DVI) and switch to it automatically, but only when it's first turned on. When Windows deactivates the iGPU, unfortunately the monitor won't auto switch to the other input. Other monitors might behave differently.

I mean, whatever works for you

So far I've spent days trying to figure out the best solution for my current setup, and I couldn't be more happier.

Looking forward to the WebDrivers, though, so can use single card for both OS's.

 

[Stork]

...Looking forward to the WebDrivers, though, so can use single card for both OS's.

Welcome to the Hurry Up And Wait Club.