HDRP Project lags in Fullscreen but not small screen

Hello,

I hope this is the right place to ask following. I tried Unity HDRP Render Pipeline again but even after upgrading to Unity 6 I still have the problem. My game lags and has around 15 Fps in the Editor and when it’s build. But only if it’s on fullscreen. When I minimize the Window it’s working nearly normal. I have nothing in my scene accept a basic player controller.

Can someone help me? What can I do to solve the problem?

What does the profiler have to say? You can hopefully pinpoint where the frame is taking a long time.

I’am really new to Unity so I don’t know what to do with the information from the profiler. Here is a screen shot from the window. The first frames are with the minimized window and after that is the fullscreen.


The garbage collector and rendering looks like it makes some problems, that’s all I can read from it.

Isn’t that just a problem of resolution ?
If you are GPU Bound then switching to full screen in a build will try to match (default behavior) your screen resolution leading to just more pixels being calculated ?
To me that sound more or less “normal” at least.

I thought that too but after playing around in the settings and changing the forced screen resolution nothing changed. I don’t know what I could do more.

If you think there’s an issue that is unrelated to the setup you are using, the next move would be to report a bug using the bug reporter so that it gets looked at !

I don’t have these massive fps drops to 15 anymore. I activated low resolution aspect ration (didn’t knew its use until now). But my fps are still going from 150fps to 70fps when I change to fullscreen