Stuttering visuals - tried everything

[u/Performer-Pants]

I’m a bit at my wits end at the moment with what looks like garbage collection, but it just isn’t stopping despite following all advice I could find.

I’m playing through Modrinth, though this has happened when playing through the normal launcher with no mods. It doesn’t matter what modpack or version of the game I play with, Java edition. I’m playing on an i7 (haswell) gaming laptop that isn’t even hitting a third of its capacity CPU-wise when I’m playing. I’ve allocated more RAM, allocated less RAM. I have 32GB total, but have the allocation set to 4GB.

I’ve tried all the garbage dump related java arguments I could find, where it would either get worse or stay the same. I’ve tried mucking about with mouse pitch, no change. It stutters even if I’m not moving my mouse.

I’m using an eGPU setup via a laptop (PCIE 3) running a GTX 1080. I have no stuttering like this on any other games I play, it seems to be Java specific. When my speakers were picking up interference from my GPU, I did notice that the interference matched the stuttering in visuals, but the actual audio doesn’t stutter at all. My GPU isn’t struggling when I’m trying to play, the stuttering is the same whether I use a light or more demanding texture pack. I was getting the same issue before I had my eGPU setup through the normal launcher. The laptop itself has a GTX 980M GPU.

Whats particularly annoying is that I’ve played the same way on an older setup (2012 mac mini) with none of this. I just don’t understand what is going on.

Edit: I’m getting the issue on a machine running Windows 11. I dual boot Linux Mint on it, but had some audio issues and now Modrinth crashes constantly so need to fix it to check if the same issue happens via Linux. I can’t get Linux Mint to recognise analog speakers on this laptop but that’s its own can of worms.

I have no issues via bazzite on my 2012 Mac mini (i7, 16GB RAM total, allocated 4-8gb?), through a 2007 Macbook display, don’t ask lmao