dma remmaping disable (nvidia)

[JimCarry]

Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Parameters

as i show in the screen i above i dont have this path, the only i have is "FTS".

[SeekNDstroy]

Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Parameters

as i show in the screen i above i dont have this path, the only i have is "FTS".

Why there is nvlddmkm path for you? Did you have a Nvidia gpu? Afaik it is for Nvidia gpus. As you are using RX580, if you had a Nvidia gpu, you had to use DDU to clean the nvidia stuffs.

[JimCarry]

Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Parameters

as i show in the screen i above i dont have this path, the only i have is "FTS".

Why there is nvlddmkm path for you? Did you have a Nvidia gpu? Afaik it is for Nvidia gpus. As you are using RX580, if you had a Nvidia gpu, you had to use DDU to clean the nvidia stuffs.

i did use ddu and i never had nvida, i will delete the nvlddmkm key.

[agendarsky]

guys please do the usb 2.0 controller mode trick. No regedit tweaks will help until you fix root of the isue which is either bad usb driver or game engines cant handle such speeds without being incosistent.

[JimCarry]

guys please do the usb 2.0 controller mode trick. No regedit tweaks will help until you fix root of the isue which is either bad usb driver or game engines cant handle such speeds without being incosistent.

explain the tweak or give link ?

[Jonnyc55]

"DMA remapping isn't supported for graphics device drivers."

https://learn.microsoft.com/en-us/windo ... ce-drivers

Valid values for DmaRemappingCompatible:

Value Meaning
0 Opt-out. Indicates that your driver is incompatible with DMA remapping.
1 Opt-in. Indicates that your driver is fully compatible with DMA remapping.
2 Opt-in, but only when one or more of the following conditions are met: A. The device is an external device (for example, Thunderbolt); B. DMA verification is enabled in Driver Verifier
3 Opt-in

Say not supported for gpu driver yet my default is 3

[JimCarry]

"DMA remapping isn't supported for graphics device drivers."

https://learn.microsoft.com/en-us/windo ... ce-drivers

Valid values for DmaRemappingCompatible:

Value Meaning
0 Opt-out. Indicates that your driver is incompatible with DMA remapping.
1 Opt-in. Indicates that your driver is fully compatible with DMA remapping.
2 Opt-in, but only when one or more of the following conditions are met: A. The device is an external device (for example, Thunderbolt); B. DMA verification is enabled in Driver Verifier
3 Opt-in

Say not supported for gpu driver yet my default is 3

you have nvidia right,if some one give the amd key i can make benchmakrs, before and after, i think for is this the key but i am not sure?

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\amdwddmg\Parameters]
"DmaRemappingCompatible"=dword:00000003
or
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\amdwddmg\Parameters]
"DmaRemappingCompatible"=dword:00000003

[Jonnyc55]

"DMA remapping isn't supported for graphics device drivers."

https://learn.microsoft.com/en-us/windo ... ce-drivers

Valid values for DmaRemappingCompatible:

Value Meaning
0 Opt-out. Indicates that your driver is incompatible with DMA remapping.
1 Opt-in. Indicates that your driver is fully compatible with DMA remapping.
2 Opt-in, but only when one or more of the following conditions are met: A. The device is an external device (for example, Thunderbolt); B. DMA verification is enabled in Driver Verifier
3 Opt-in

Say not supported for gpu driver yet my default is 3

you have nvidia right,if some one give the amd key i can make benchmakrs, before and after, i think for is this the key but i am not sure?

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\amdwddmg\Parameters]
"DmaRemappingCompatible"=dword:00000003
or
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\amdwddmg\Parameters]
"DmaRemappingCompatible"=dword:00000003

Sorry yes Nvidia, 3060.

In the link I provided in other post, I wasn't clear, it says in a warning box:

"DMA remapping isn't supported for graphics device drivers."

Yet we see this key for the GPU. I can only think, windows OS merely sees a PCI device, and adds the key anyway. However, there's no telling how Nvidia GPU will work with the registry key, maybe does something with it by itself. So mine was default 3, and I set it 0.

Well if it helps mine was in:

Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Parameters, but yes. amdwddmg, no idea if that is the target for you.

[JimCarry]

"DMA remapping isn't supported for graphics device drivers."

https://learn.microsoft.com/en-us/windo ... ce-drivers

Valid values for DmaRemappingCompatible:

Value Meaning
0 Opt-out. Indicates that your driver is incompatible with DMA remapping.
1 Opt-in. Indicates that your driver is fully compatible with DMA remapping.
2 Opt-in, but only when one or more of the following conditions are met: A. The device is an external device (for example, Thunderbolt); B. DMA verification is enabled in Driver Verifier
3 Opt-in

Say not supported for gpu driver yet my default is 3

you have nvidia right,if some one give the amd key i can make benchmakrs, before and after, i think for is this the key but i am not sure?

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\amdwddmg\Parameters]
"DmaRemappingCompatible"=dword:00000003
or
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\amdwddmg\Parameters]
"DmaRemappingCompatible"=dword:00000003

Sorry yes Nvidia, 3060.

In the link I provided in other post, I wasn't clear, it says in a warning box:

"DMA remapping isn't supported for graphics device drivers."

Yet we see this key for the GPU. I can only think, windows OS merely sees a PCI device, and adds the key anyway. However, there's no telling how Nvidia GPU will work with the registry key, maybe does something with it by itself. So mine was default 3, and I set it 0.

Well if it helps mine was in:

Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Parameters, but yes. amdwddmg, no idea if that is the target for you.

ok so if someone knows,maybe give source and maybe then benchamarks?

[Jonnyc55]

I got temp banned in COD yesterday supposed cheating, these reg keys might trigger anti-cheat I wonder... DMA hack cards exist for games like CoD.