Windows 10: A way to force a game like Minecraft Preview UWP to use Direct3D 12 SM11.0 instead of...

I am running Minecraft Preview 1.21.90.27 on my NVIDIA GeForce GT 840M running on the best performant driver version 551.86, which supports DirectX 12 Shader Model 11.Windows 11 IoT Enterprise LTSC 24H2 Build 26100.4202.I need to know what to modify, perhaps in the Registry, or some driver files, or environment variables, or add a command line argument e.g. "C:\Program Files\WindowsApps\Microsoft.MinecraftWindowsBeta_1.21.9027.0_x64__8wekyb3d8bbwe\Minecraft.Windows.exe" -dx12, to force Minecraft Preview to run using DirectX 12 features.Note: yes, I changed both of the GPUs' friendly name i

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How to fix Minecraft Legends *Failed to initialize Direct3D 12"

Whenever I press play in the Minecraft launcher to play Minecraft Legends I get the error "Failed to initialize Direct3D 12" I meet the minimum requirements to play the game so there should be no issue there as I have a Nvidia Quadro K4000.

 

UWP keeps 'suspending' my Minecraft game while I'm actively playing it!!???

Minecraft is the only application that UWP suspends while I'm actually using it. If I go into task manager at any point I can see a handful of apps that UWP has suspended, but they are all apps that I'm not actively using, they are also not games (like minecraft), and they are easy for me to wake up if I just go to them. But with Minecraft, UWP will suspend it while I'm playing it, and the only way I can get it to start running again is if I CTRL-ALT-DEL to get to task manager and then 'End' Minecraft in task manager. Obviously this sucks because I have to keep stopping and restarting my game.

There has been no hardware changes made to my system.

***I think I may have a lead on the culprit. I recently deleted and reinstalled Minecraft. When I did this, I downloaded and installed the 'Minecraft Launcher App' in addition to Minecraft itself. Previously I had always just started Minecraft by itself, but I was under the impression from my latest visit to the Microsoft store, that I should be using the Minecraft Launcher App to launch Minecraft.

So today I stopped using Minecraft Launcher, and I would just start the Minecraft for Windows (Bedrock) app itself, rather than launching it through the Minecraft Launcher app.

I was able to play for 3 hrs with no suspensions, and I even died a few times and was able to respawn successfully. When I was using the Minecraft Launcher App to launch Minecraft the game would always be immediately suspended by UWP whenever I died.

Bottom line is, I think using the Minecraft Launcher App to start Minecraft was leading to the UWP suspensions...because it hasn't happened again since I've stopped using the launcher app. You guys might want to get rid of that launcher app.

James

 

Minecraft Preview not using d3d12 but d3d11 instead

Hello I am trying to use minecraft bedrocks new deferred technical preview.

I have installed multiple resource packs that support the feature but have ran into this error:

"resourcePack.incompatible.graphics.pbr"

doing some digging I found out that my minecraft preview is running d3d11 instead of d3d12 which would prevent it from using the new rendering capabilities.

I have checked the DirectX dianostic tool and it shows I'm capable of using DirectX12.

is there any way for me to make minecraft run d3d12?