ok, tried rolling back a few builds and found one that had it working.
https://github.com/doitsujin/dxvk/actions/runs/2671698082

I can't use 1.10.2 or 1.10.1 since it does something to the inventory, the 3d models get misplaced. The most recent builds solved this problem.

With only the latest build installed, the inputs for my Dualshock 4 does not work when trying to boot RE4UHD.

this is the version i'm using: https://github.com/doitsujin/dxvk/suites/7491174833/artifacts/307575916

The game runs on 32bit d3d9

Are you on Windows or linux?
What GPU and driver version?

Does controller input work with wined3d? Mouse/Keyboard stuff I'd understand to some degree, but we don't really interact at all with controller input.

nope, tried using it with both d3d9 from dxvk and wine3d and none worked.

Are you on Windows or linux? What GPU and driver version?

Windows 10 Home 64-bits (10.0, 19044)
GTX 980 Ti, driver version 516.40

If you are using steam then try switching to the beta client

Are you on Windows or linux? What GPU and driver version?

Windows 10 Home 64-bits (10.0, 19044) GTX 980 Ti, driver version 516.40

DXVK is not supposed to mess with input, can you try launching the game using steam big picture mode?
If you are using a pirated copy of the game that's on you and nobody here will support you

Use DS4Windows and make sure to tick the 'Hide DS4 Controller' box, otherwise RE4 will see both the controllers native dinput and the xinput it is emulating. This messes things up.

If using Steams native wrapper for DualShock 4, it should do this automatically.

Basically, you don't want dinput and xinput at the same time, and on the same controller.

dxvk master uses vulkan 1.3 and steam somewhat ties it's controller support together with the overlay (afaik) which only supports vulkan 1.3 in the client beta for now. Unless something changed since i wrote.
So trying that first could be a quick thing.

Ofc the above can be good advise too. I haven't used controller on windows much myself for a little while.

@kTeo-0 Friendly ping

Closable issue, DXVK has nothing to do with input :shrug:

Dxvk can mess with input in a few cases. Maybe mostly dx9 games.

Tho since this is a controller i'm almost certain this is just a steam overlay issue.