What About brightness control? And are you referring to this cable ?
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MP 7,1 Nvidia’s RTX 3090/ 4090/ A6000/ 6000 Ada in a Mac Pro (2019)
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What About brightness control? And are you referring to this cable ?
So after installing a 3090 & Windows drivers to my 7,1, I wanted to do some testing. I have an LG Ultrafine 4k (new edition) connected to the Apple Thunderbolt 3/USB card via a TB3 cable. I then went into device manager and disabled the Vega II in Windows, which should have disabled my monitor's display output, per @joevt. However, I kept receiving video on my display, along with all USB functionality working perfectly fine, so I booted up flight sim 2020 and had a flight around, no problems and great performance on ultra (struggled to keep 60fps on ultra due to the Xeon processor bottleneck), kinda ran hot but nothing crazy. Much better than the Vega normally would get though, and could confirm in task manager all of this was being rendered on the 3090.
When I removed and plugged back in the TB3 cable to my monitor, I had full USB functionality from my keyboard etc, but no display, as I expect whatever display stream caching Windows had been doing with the MPX module had been lost. So it seems like there may be a way to reroute the display output to a Thunderbolt 3 port, but it would take some careful programming that I'm not skilled enough to do in Windows.
When I removed and plugged back in the TB3 cable to my monitor, I had full USB functionality from my keyboard etc, but no display, as I expect whatever display stream caching Windows had been doing with the MPX module had been lost. So it seems like there may be a way to reroute the display output to a Thunderbolt 3 port, but it would take some careful programming that I'm not skilled enough to do in Windows.
No, something else is happening. I think maybe the Vega II was not disabled. Did you see how/where the display was connected in the Device Manager? Did you have the ability to change resolution?
yes thats it. I can confirm that going from display port out to usb c into the thunderbolt display works with 6k. I tried about 10 cables to get there.
That's very strange, multiple posts and thread about the Moshi cable stating that it doesn't work with the XDR display and on Apple website it's rated up to 5K resolution.
Where you able to control the screen brightness etc..?
Might be outputting 8 bit 6K (less bandwidth) but misreporting it as 10 bit. Misreporting happens in macOS and Windows. Sometimes 10 bit is misreported as 8 bit and 8 bit misreported as 10 bit.
Whenever setting up a monitor it is best not to rely on System Profiler only. Open large wide gamut TIFF images with gradients to check how well wide color is being supported. You can find a lot of them online with AdobeRGB, P3 and ProPhoto color profiles.
It was disabled, but my guess is Windows is trying to do something smart so it keeps existing displays connected. I cannot change the resolution, nor can I access the NVidia control panel. But the Vega is disabled, and the 3090 is definitely handling the rendering/GPU tasks on my TB3 monitor. Its actually a fine work around IMO, requires no cards, no special cables, just to disable the AMD GPUs after plugging to a non-GPU TB3 port. Performance is fantastic.
6K only requires HBR2 link rate (like 4K) with DSC. The RTX cards support DSC.
Screen brightness requires a solution that includes USB (plus Boot Camp driver for Windows). The Moshi and any similar DisplayPort-only cable do not include USB. Without USB, there is a possibility of using an app that uses DDC/CI to control screen brightness - I don't remember if anyone said DDC/CI works with the XDR - but that doesn't give other features such as presets and USB hub.
With DSC, it could be 12 bit. macOS only reports the bit depth of the framebuffer. The bit depth may be different for the output signal. In macOS, the AGDCDiagnose command will tell you the bit depth for certain GPUs (AMD?) and macOS versions.
When looking at Device Manager, it helps to "view by connection" to see where the display is connected to.
I suppose if it's working as you say, it will stop working if you did not have the Vega installed.
Perhaps it's using an EFI framebuffer (setup during boot before Windows starts) and Windows is able to tell the RTX GPU to render to that using DMA. Since it's an EFI framebuffer, there's no way to change the resolution.
An EFI framebuffer occurs on Macs when you boot using a GPU that doesn't have drivers in macOS.
Does Device Manager have more info about the display?
The Belkin Charge and Sync Cable for Huawei VR Glass
Page 4 | Does a USB-C monitor support DisplayPort input over...
Page 4 | I have the new generation of the LG Ultrafine 4k for Mac, which eschews DisplayPort and HDMI inputs for just two (2) Thunderbolt 3 inputs. L...
egpu.io
RX 6900 XT seems to be a very good alternative
AMD Unveils Big Navi: RX 6900 XT, RX 6800 XT and RX 6800 Take On Ampere
The Radeon RX 6000 series is much more than a value alternative; AMD plans to go against Nvidia's best and may come out ahead.
RX 6900 XT seems to be a very good alternative
AMD Unveils Big Navi: RX 6900 XT, RX 6800 XT and RX 6800 Take On Ampere
The Radeon RX 6000 series is much more than a value alternative; AMD plans to go against Nvidia's best and may come out ahead.www.tomshardware.com
Yes, I didnt expect anything close to the new RTX cards from AMD, that solves my problem. Now just have to wait for it to be available and make sure there's some decent macOS driver - some already in BigSur? Could even hope for a MPX module but at the rate Apple's going with those it probably wont be before March-April 2021 - and it'll be $2-4K for a W6800/6900...
Yup, but a silent MPX with more thunderbolt ports would be nice. Its not worth paying 3-4x the price and waiting 6 months for though...
Hey all,
Wondering if someone can help with setting up the GPU. I just installed an RTX 3090 in the Mac Pro running a Pro XDR display. Also purchased the Belkin Charge and Sync Cable for Huawei VR Glass as I read this would be the best option.
However I am struggling to get the RTX to run as a main gpu on the Pro XDR
I was able to get it to run with great performace on a second Dell display, however that's not ideal as the Dell needs to be set as primary and the XDR as secondary display. In this case I also need to have both AMD and NVidia adapters enabled in the device manager to get any picture (black screen otherwise). This however causes both GPUs to work to display an image on both displays and causes some slowdowns in certain operations (slow highlighting of text for example)
This is not ideal and I would like to get the XDR to run as a primary and single display with only the RTX 3090 running (AMD disables)
Has anyone been able to get this config to work? How did you plug in the cables? Does the XDR get connected directly to the MPX module or the top usb-c plugs? Does the Belkin cable get plugged in to the RTX displayport directly?
Also I am not too bothered by losing volume/brigthness controls.
Any tips? Thanks in advance
Wondering if someone can help with setting up the GPU. I just installed an RTX 3090 in the Mac Pro running a Pro XDR display. Also purchased the Belkin Charge and Sync Cable for Huawei VR Glass as I read this would be the best option.
However I am struggling to get the RTX to run as a main gpu on the Pro XDR
I was able to get it to run with great performace on a second Dell display, however that's not ideal as the Dell needs to be set as primary and the XDR as secondary display. In this case I also need to have both AMD and NVidia adapters enabled in the device manager to get any picture (black screen otherwise). This however causes both GPUs to work to display an image on both displays and causes some slowdowns in certain operations (slow highlighting of text for example)
This is not ideal and I would like to get the XDR to run as a primary and single display with only the RTX 3090 running (AMD disables)
Has anyone been able to get this config to work? How did you plug in the cables? Does the XDR get connected directly to the MPX module or the top usb-c plugs? Does the Belkin cable get plugged in to the RTX displayport directly?
Also I am not too bothered by losing volume/brigthness controls.
Any tips? Thanks in advance
Ignore my last post.. issue was on my end. Seems like the Belkin cable was a bit flimsy and needs a bit of force to make connection with the RTX displayport, and I hadn't pushed it far enough
I can report that the setup is working really well in Windows with Pro XDR. I still need to see if there will be any issues in Mac OS
I can report that the setup is working really well in Windows with Pro XDR. I still need to see if there will be any issues in Mac OS
^^^^As I posted previously I needed to cut the plastic on the Belkin cable DP plug to get it to seat in my RX5700XT. Don't understand why the cable was constructed this way. Otherwise works fine in Big Sur, except no boot screen.
This cable enables the Apple USB controls.
Lou
This cable enables the Apple USB controls.
Lou
As a side notation query >. Do you think XDR seems a little muted compared to your previous screen/monitors.
Yes that's what it was. I shaved a bit off the cable plug with a knife and it fits perfectly. Thanks for the tip!
As a side question, I can't seem to get both Mac OS and Windows to find the display without re-plugging the cables. The XDR has only one Thunderbolt (and the 3 USB-C) and both Windows and Mac OS seem to require their respective cards plugged to this Thunderbolt in order to get a picture on the screen. If I plug the RTX to the USB-C I just get a black screen in Windows. Same if I plug the MPX module to the USB-C - just black screen in Mac OS.
Does anyone have any tips on how to connect the cables from XDR to the back of the Mac Pro so I don't have to re-lug every time I switch OS?
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My Previous screen was the display on the iMac Pro. Even though I thought the iMac Pro had the best display I had ever worked on, the Pro XDR I think is miles better. It's much brighter, colours looks better and of course it makes a huge difference for me. The halo effect around brighter bits and the dimming around the edges is definitely there though, but they don't bother me a lot.
Not sure if that answers your question, what exactly do you mean by muted?