Afaik you can only enable it in the bios, but you can disable it at runtime with VKD3D_CONFIG ...

> Afaik you can only enable it in the bios, but you can disable it at runtime with VKD3D_CONFIG ...

> `VKD3D_CONFIG=no_upload_hvv %command%` in launch options improved things significantly. Thank you! This seems to have fixed the stutters ...

The launcher can be bypassed with some launch option trickery: `eval $( echo VKD3D_CONFIG=no_upload_hvv PULSE_LATENCY_MSEC=90 "%command%" | sed ...

> This fixed the crashes for me: > > ``` > VKD3D_CONFIG=no_upload_hvv,single_queue PROTON_VKD3D_HEAP=1 %command% > ``` No dice on that for me ...

This fixed the crashes for me: ``` VKD3D_CONFIG=no_upload_hvv,single_queue PROTON_VKD3D_HEAP=1 %command% ``` Arch Linux 7.0.3-zen1 ...

> Could any of you who experience the very long loading times try to launch the game with `VKD3D_CONFIG ...

Could any of you who experience the very long loading times try to launch the game with `VKD3D_CONFIG ...

... launching the game with `VKD3D_CONFIG=no_upload_hvv %command%` have ~20% fps improvement for me.

... launching the game with `VKD3D_CONFIG=no_upload_hvv %command%` have ~20% fps improvement for me. this isn't a solution ...

I have try this option: `VKD3D_CONFIG=no_upload_hvv %command%` And seems it solved FPS drops with revive animations. And ...

... So this one is fixing revival animation on skeletons FPS drop issue: `VKD3D_CONFIG=no_upload_hvv %command%`

... 3,4,5,6,7 DXVK_HDR=1 ENABLE_HDR_WSI=1 PROTON_ENABLE_WAYLAND=1 PROTON_VKD3D_HEAP=1 VKD3D_CONFIG=no_upload_hvv AMD_VULKAN_ICD=RADV %command%```

@wwmm what happens with VKD3D_CONFIG=no_upload_hvv? It should disable bar within vkd3d. BTW there are been other people ...

>what happens with VKD3D_CONFIG=no_upload_hvv? It seems to have the same effect as `nosam`. There is some performance ...

... Current command line option : ``` VKD3D_CONFIG=no_upload_hvv,single_queue,vk_debug VKD3D_FEATURE_LEVEL=12_0 VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/nvidia_icd.json ...

... Required Vulkan extension VK_KHR_surface not supported` This might be causing problem? Tried following launch options: `VKD3D_CONFIG=no_upload_hvv,single_queue ...

... 7.0.0-1-cachyos NVIDIA 595.58.03 my Steam settings: ` mangohud PROTON_VKD3D_HEAP=1 VKD3D_CONFIG=no_upload_hvv DXVK_ASYNC ...

... tested: - ❌ `PROTON_VKD3D_HEAP=1` (Proton-CachyOS 10.0-20260330) - ❌ `PROTON_VKD3D_HEAP=2` (GE-Proton 10-34) - ❌ `VKD3D_CONFIG=single_queue` - ❌ `VKD3D_CONFIG=no_upload_hvv ...

... Here's the command I'm using on the game's "Properties -> General" Launch Options: ``` PROTON_NO_FSYNC=1 VKD3D_CONFIG ...

... It does seem `PROTON_NO_FSYNC=1` helps, as does the `VKD3D_CONFIG=no_upload_hvv`, and combined with Proton 6.3-8 ...

... driver 530.41.03, now I am using `VKD3D_CONFIG=no_upload_hvv PROTON_HIDE_NVIDIA_GPU=0 PROTON_NO_ESYNC=1 PROTON_ENABLE_NVAPI=1 MANGOHUD=1 ...

... Tried with these: `VKD3D_CONFIG=no_upload_hvv PROTON_HIDE_NVIDIA_GPU=0 PROTON_NO_ESYNC=1 PROTON_ENABLE_NVAPI=1 MANGOHUD=1 PULSE_LATENCY_MSEC=60 %command%` It freezes ...

... Started turning everything but steam off, including 2nd display, ran with gamemode and `RADV_PERFTEST=nosam VKD3D_CONFIG=no_upload_hvv` env ...

... almost two hour session myself without crashes, using `VKD3D_CONFIG=no_upload_hvv gamemoderun gamescope -e -f -r 165 -h 2160 ...

... 1920x1080 **Launch Options** - MANGOHUD=1 PROTON_USE_NTSYNC=1 VKD3D_CONFIG=no_upload_hvv,memory_budget WINE_CPU_TOPOLOGY=8:0,1,2,3,4,5 ...

... VKD3D_CONFIG=force_host_cached VKD3D_CONFIG=no_upload_hvv Proton log [steam-1716740.log](https://github.com/ValveSoftware/Proton/files/12555955/steam-1716740 ...

... I also noticed that disabling rebar with ` VKD3D_CONFIG=no_upload_hvv ` seems to have a measurable effect on performance, since ...

... customVendorId=10de" DXVK_NVAPI_GPU_ARCH=GA100 PROTON_HIDE_NVIDIA_GPU=1 PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=no_upload_hvv,force_host_cached VKD3D_DISABLE_EXTENSIONS=VK_NV_low_latency2 __GL_SHADER_DISK_CACHE_SKIP_CLEANUP=1 prime-run %command ...

... Adding some settings regarding ReBAR, I believe through `VKD3D_CONFIG=no_upload_hvv,force_host_cached`. Some use `no_upload_hv`, I think this one ...

... set these command options: `PROTON_HIDE_NVIDIA_GPU=1 PROTON_ENABLE_NVAPI=0 VKD3D_CONFIG=no_upload_hvv,dxr %command%` After that I was able to ...