d3d9on12 black screen and Intel UHD Graphics translation (2 in 1)

[NIKEA-SOFT]

I have bad news, for now I just want to report this, but we encountered black screen twice in different games when using d3d9on12, the first case is not related to Intel UHD, I just implemented d3d9on12 support through patches, but got a black screen (on nvidia 960m), then I gave up trying, but recently at a new job I also encountered a black screen (in another game) for players who were using Intel UHD Graphics, using the debugger I found out that to my surprise Intel started translating d3d9 to d3d9on12, which led to a similar black screen problem, but At the same time, the sounds and the game itself work, but you still see a black screen.

Here is the news on the Intel website
https://www.intel.com/content/www/us/en/support/articles/000089893/graphics.html

Overall there are serious problems with d3d9on12, it's still a raw product, I don't know why intel decided to use it.
As for identifying the black screen problem, I am ready to provide the necessary information to try to find out the cause.
Let me clarify that there are two different games on dx9, in one I use patches, and in the other the Intel driver does it, in both cases there is a black screen, that is, d3d9on12.dll instability.

When using x64dbg, I managed to catch some exceptions that were somehow related to the comparison test eax,eax and in some cases eax contained 0x80004005, I don’t know what this result is, but the point is that this is some kind of returned result, which further leads to throw exception (this is inside the d3d9on12.dll functions)
These exceptions are thrown constantly while the process is running, perhaps this is the reason why we have a black screen, but this is more a consequence than a cause.

[vdwtanner]

Hi, can you share the affected games? Ideally maybe a d3d9 pix capture of the issue and/or a dump? Thanks!

The intel page is talking about something different, if I understand them correctly. I think it's more related to #2 , at least the "very bright" portion. That said, I've unfortunately had trouble reproing that particular problem in the past.

[NIKEA-SOFT]

Hi, can you share the affected games? Ideally maybe a d3d9 pix capture of the issue and/or a dump? Thanks!

The intel page is talking about something different, if I understand them correctly. I think it's more related to #2 , at least the "very bright" portion. That said, I've unfortunately had trouble reproing that particular problem in the past.

Please contact me by email: nsoft.sagaonline@gmail.com, I will provide a binary for testing.
In addition, I tried to study the binary file with different tools, but nothing worked for me, for unknown reasons the process does not work, it crashes when I try to perform the analysis.
Maybe I'm not that good at this...

What's interesting is that in-game screenshots seem to work fine, the game uses the D3DXSaveSurfaceToFileW call to create screenshots. But why do I see a black screen if screenshot is fine, hmm...

Also i know that the game uses DXUT for DirectX9, perhaps some parameters that were specified in DXUT somehow affect this and leads to a black screen, I cannot say.

[NIKEA-SOFT]

I decided to build d3d9on12 in debug mode and give it to the game, I got an exception, then I started debugging and found that the game passes D3DFMT_VERTEXDATA (100) to ConvertToDXGIFORMAT, however, it seems d3d9on12 does not currently know how to work with the vertexdata format or is this normal ?

P.S. In the debugged version of d3d9on12.dll I get an exception when starting the game, here is a screenshot of the exception.

I get this exception exactly when the callstack looks like this:

For reasons unknown to me, the call to CreateSharedResource cannot create the resource. (ERROR: E_INVALIDARG)
At this moment Desc12.Format is equal to DXGI_FORMAT_B8G8R8A8_TYPELESS

Updated:
I am using a laptop with two video cards, the above information was for the NVIDIA GeForce GTX 960M video card.
For the sake of experimenting, I decided to specify the built-in Intel HD video card in the graphics settings of Windows 10, and the game seemed to start displaying the introductory logos, but then the image freezes and the application starts to lag a lot, and the RAM seems to be slowly growing, the image itself stops changing.
When using an Intel HD video card, the CreateSharedResource call does not occur at all, strange...

[NIKEA-SOFT]

There is additional information, I ran the .exe file on a new computer that only uses an RTX 2060, previously it was a laptop with two video cards, now the d3d9on12 works correctly on the new computer.
I'm not sure, but what if it has something to do with the notebook having two graphics cards? I mean, since they have Intel and NVIDIA video cards at the same time.
In any case, we have a fact that suggests that d3d9on12 is unstable on laptops with two video cards, one of which should probably be Intel (but this is not certain, and not necessarily Intel UHD, I had the HD version, which supported d3d9 without proxying in forced mode to d3d9on12)