protonscr

Subnautica 2

appid 1962700 1 threads, 1 open 18 comments last activity 2026-07-21
Threads

Subnautica 2 proton open 2 matching

#9791 · 18 comments · opened 2026-05-15 · last comment 2026-07-21 by cgillinger
comment by NeoTheFox · 2026-07-18 · view · github
... this is a race condition - trying to get RADV_DEBUG=hang just solved the issue since it forces order ...
comment by cgillinger · 2026-07-18 · view · github
... reporting as-is? The way I read it, "`RADV_DEBUG=hang` makes the crash disappear because it forces ordering ...
Recent activity
  • cgillinger · 2026-07-21 · Subnautica 2
    @NeoTheFox Following up as promised: I can now confirm stability with `VKD3D_CONFIG=single_queue`. Three sessions since setting it (July 18, 20 and 21, roughly 2 hours of play in total) — zero GPU hangs, clean exits ever...
  • Hoff16 · 2026-07-19 · Subnautica 2
    Has anyone tried Proton Experimental Bleeding Edge? I've had that resolve issues that even the latest GE or Cachy Proton couldn't solve!
  • cgillinger · 2026-07-18 · Subnautica 2
    I'll try to put in a few sessions the next few days!
  • NeoTheFox · 2026-07-18 · Subnautica 2
    @cgillinger I'll consider reporting once you'll confirm it's fixed for you too and my findings are correct. As for `PROTON_FSR4_UPGRADE=1` - since the last release it does nothing, and they haven't updated their README y...
  • cgillinger · 2026-07-18 · Subnautica 2
    @NeoTheFox Thank you — that's genuinely great news about FSR 4.1 on RDNA3, and I really appreciate you taking the time to share your debugging journey here. It's saved me (and probably others) a lot of trial and error. O...
  • NeoTheFox · 2026-07-18 · Subnautica 2
    @cgillinger I have great news for you - since not so long ago FSR4 is supported on RDNA3, though being somewhat more expensive it's still gives you better visuals and makes good use of that extra performance left on the ...
  • cgillinger · 2026-07-18 · Subnautica 2
    @NeoTheFox Thanks — that matches what I was hoping to learn before hitting the crash again. I've now set both on my RX 7600: [code] keeping the DGC disable alongside `single_queue` since they address different mechanisms...
  • NeoTheFox · 2026-07-18 · Subnautica 2
    @cgillinger ever since I've reported it I've played around with debugging some more, and I figured this fix was better than no fix, but still allowed for some crashes. If it's going to be the same for you - this is what ...

Proton versions over time

Launch lines, newest first

VKD3D_CONFIG=single_queue VKD3D_DISABLE_EXTENSIONS=VK_EXT_device_generated_commands %command%
VKD3D_DISABLE_EXTENSIONS=VK_EXT_device_generated_commands %command%
VKD3D_DISABLE_EXTENSIONS=VK_EXT_mesh_shader,VK_NV_raw_access_chains %command%