DirectX12 does not use full VRam with Lenovo Legion Go

Hello

I play PoE2 mainly on my lenovo legion go and have got heavy texture problems in Act 3. After testing a while I realized that the game uses only 3gb of Graphic Ram, even if the device has set more gb for graohics in the bios. When I switch to directX11 it uses full 6gb (which is my setting on the device) and vulcan also runs without texture problems (but shows no value for VRam in the ingame info bar). But since both of those run quite laggy compared to directx12, so I would like to use that mode ;)

I have the newest drivers and also updated my windows.



on the Screenshot of the game the VRam bar is half filled with 1.6gb and if it hits 3gb the textures of the game blur until they are just mono colored poligons.

Here my windows info



I just recreated the problem I ment. I just walked into the next area and back and it's looking like this ...

I can confirm the issue on Asus ROG Flow Z13, 64 GB RAM out of which I dedicated 16 GB as VRAM, but on DX 12 rendering setting there is only 4 GB VRAM max in the game. Turning to DX 11, game can access more VRAM

I've tried reinstalling drivers, clearing shader cache, changing VRAM amount, and all kind of settings. DirectX Diagnostic tool shows full amount.