do not support new windows 24H2

[Morindill]

it seems like the new ACM system crashed the APP

[lauralex]

Anyway, I can see from your screenshot that everything is "in its place" (except for the build version) and as expected.

[neverabyss]

Can you install System Informer and send a screenshot of the results by searching "dwm" in the search bar? I need to check the "Session ID" column, so ensure that you added it in the selected columns.

Befo apply:

After apply:

[Morindill]

For those who don't have dwm working, do a clean NVIDIA GPU driver installation of 552 or older version, it doesn't work with any newer driver, at least this solution works for me.

[Buliwyf-Stonehand]

When I click OK, the program freezes for a few seconds, and then the screen turns black for a moment, as if the dwm.exe process had terminated and then automatically restarted. I used certutil -hashfile C:\Windows\System32\dwm.exe SHA256 to check dwm.exe hash sum and and got: f4351ca54628b830afa5accbf6e24a9cb89f0912187c7e1651f6130e5d84e920. My windows build: 26100.2161. dwm_lut.dll is built from the win24h2 branch in debug mode. dwm.log

Same problem. After clicking "Apply" the screen freezes for a second, then turns black, before turning back to normal. During that time dwm.exe get's restarted.

dwm.log

dwmcore.zip

SHA-256: 47EB01376561715145E3AF652D661CEAEC8B0FABC4D0EEF670CE28A78792EBA6

For those who don't have dwm working, do a clean NVIDIA GPU driver installation of 552 or older version, it doesn't work with any newer driver, at least this solution works for me.

Thanks. I'll give it a try.

[neverabyss]

For those who don't have dwm working, do a clean NVIDIA GPU driver installation of 552 or older version, it doesn't work with any newer driver, at least this solution works for me.

Thanks. This worked for me. I used a normal (no clear) 552.12 installation. Before this I had 565.90.

UPD: Tested with different driver versions, 552.44 works for me. Starting from 555.85 I have the previously described problem. 555.85 implemented WDDM 3.2 support for 24H2, perhaps this is the cause of the problems. With 552.44 dxdiag.exe shows WDDM 3.1, while with 555.85 it shows WDDM 3.2.

[Tatted-Gamer93]

For those who don't have dwm working, do a clean NVIDIA GPU driver installation of 552 or older version, it doesn't work with any newer driver, at least this solution works for me.

Finally I could say this does work doing a clean and install of driver 552.44 works when applying the dwm filter thanks 😊

[lirtm]

driver 552.44 works

Confirmed! Everything works on this version of drivers.

[a3660537]

4.0.2 works on Intel Arc Graphics 31.0.101.5522 but does not work on 32.0.101.5978.

[Morindill]

It might be the new physx driver intoduced in the 555 release

[Tatted-Gamer93]

Since I downgraded the GPU driver crashing a lot on Call of Duty Black Ops 6 after I installed the recent driver for NVIDIA GameStop crashing this the only downfall of using the DMW is you have to download driver but it causes Black Ops 6 to crash

[Morindill]

So it basically does not campatible with the new WDDM3.2, thst's why 552 or older drivers that only support WDDM3.1 can work.

[KubaT1987]

I have an Asus laptop with a Radeon iGPU (R9 5900HX) - to which the display is directly connected - and an RTX 3050Ti dGPU.

The iGPU driver is from 03/2023 (Asus hasn't updated it since).

DWM LUT works for the most part but, as indicated in my bug reports, it breaks the GPU acceleration in web browsers and Photoshop 2025 (29.0).

Making a clean install of the GPU and chipset drivers didn't help. Moreover, it made it nigh-impossible to start DWM LUT.

[lauralex]

I have to check if I can emulate this behaviour inside my VM. I don't have high hopes though.

[yuchi1989]

I also have this issue, the black screen flash in Chrome browser when dwm lut enabled. But when I disable the gpu acceleration in Chrome setting, then everything goes normal, but the dgpu will never be used. dgpu(Vega 64)

[lirtm]

black screen flash in Chrome browser

Unfortunately, I've noticed that too(

[KubaT1987]

To be more specific:

1) Photoshop 2025 (29.0): When I try to move the canvas - by pressing the spacebar and the left mouse button - it gets black:

https://postlmg.cc/ZvJS4rxy

Moreover, the loaded LUT doesn't work in Photoshop's full screen mode.

Disabling GPU acceleration solves both problems but at the cost of tearing and decreased performance.

2) All web browsers: No video in YT videos.

In the case of Chromium-based browsers the problem can be solved by changing the ANGLE backend to D3D9, which causes a decrease in performance on some websites, or disabling GPU acceleration altogether.

3) Microsoft Edge: The browser window keeps flashing to black.

Again, changing the ANGLE backend to D3D9 or completely disabling GPU acceleration solves the problem.

[Morindill]

To be more specific:

1. Photoshop 2025 (29.0): When I try to move the canvas - by pressing the spacebar and the left mouse button - it gets black:

https://postlmg.cc/ZvJS4rxy

Moreover, the loaded LUT doesn't work in Photoshop's full screen mode.

Disabling GPU acceleration solves both problems but at the cost of tearing and decreased performance.

2. All web browsers: No video in YT videos.

In the case of Chromium-based browsers the problem can be solved by changing the ANGLE backend to D3D9, which causes a decrease in performance on some websites, or disabling GPU acceleration altogether.

3. Microsoft Edge: The browser window keeps flashing to black.

Again, changing the ANGLE backend to D3D9 or completely disabling GPU acceleration solves the problem.

Try this driver if you are using Nvidia GPU: https://developer.nvidia.com/downloads/vulkan-beta-55331-windows ; or you can try to reinstall driver every restart, both approaches might solve the problem for now.

[neverabyss]

Moreover, the loaded LUT doesn't work in Photoshop's full screen mode.

This is not just for Photoshop, it is for all fullscreen applications (including fullscreen borderless window) that use DXGI spawchain...

As far as I understand, this is a new DXGI feature in 24H2. The top window, if its dimensions match the screen dimensions, is passed directly to the GPU (or at least bypasses the place in the chain where dwm_lut works).

A workaround is to keep an invisible window on top of all windows. For this, I use Desktop Overlay Host from RTSS with the following settings:

[KubaT1987]

Try this driver if you are using Nvidia GPU: https://developer.nvidia.com/downloads/vulkan-beta-55331-windows ; or you can try to reinstall driver every restart, both approaches might solve the problem for now.

My laptop has two GPUs: a Radeon iGPU and an RTX 3050Ti dGPU with the display being directly connected to the former.

Moreover, the loaded LUT doesn't work in Photoshop's full screen mode.

This is not just for Photoshop, it is for all fullscreen applications (including fullscreen borderless window) that use DXGI spawchain...

As far as I understand, this is a new DXGI feature in 24H2. The top window, if its dimensions match the screen dimensions, is passed directly to the GPU (or at least bypasses the place in the chain where dwm_lut works).

A workaround is to keep an invisible window on top of all windows. For this, I use Desktop Overlay Host from RTSS with the following settings:

Thanks. I tried it today but unfortunately it didn't help.

[notimp]

driver 552.44 works

I can confirm that this NVIDIA driver version solved the issue for me as well (using dwm_lut 4.0.2), so it wasnt the windows version 26100.2033 that caused the issue.

Clean install wasnt needed. Just did a normal express one.

[a3660537]

On NVIDIA GPU driver 552, if I apply lut and launch Genshin, Windows restarts.

[notimp]

Just launched Yakuza Kiwami 2 and The Testament of Sherlock Holmes which I had installed and no such issue. So its not a general DirectX 11 issue.

Just FYI.

[yuchi1989]

the black screen flash in Chrome browser when using dgpu and dwm lut enabled. Any update on this issue?