BloodSyphon Posted April 5, 2020 Share Posted April 5, 2020 (edited) I know this is probably more SteamVR / Alyx, but I figured I would post here to see if anyone has any recommendations. I'm experiencing extreme stuttering playing Half-Life: Alyx on my Vive Pro and original Vive. I cannot reproduce it in any other game. Sometimes I can play for a solid hour or two without any issues, then out of nowhere I get extreme, nonstop stuttering. Other times I start experiencing it immediately after loading a save. I can sometimes cause it to happen by using the weapon switching HUD. As soon as I open the weapon switching screen, it's non-stop stuttering. Opening the steam overlay / settings menu ALWAYS causes this if I am running Alyx. The steam overlay / settings menu never causes this issue if it's another game running. Sometimes if I exit out of Alyx to VR Home, the problem will extend to VR Home and be choppy there as well. I can't reproduce it in VR Home if I haven't first played Alyx. If anyone has additional recommendations other than reinstalling Windows, I'd love to hear it. Thanks. GeForce GTX 980 MSI B450 TOMAHAWK MAX w/ latest firmware AMD Ryzen 5 3600X 32 GB RAM Windows 10 up-to-date Vive Pro (and original Vive) Original Vive controllers 1.0 basestations The only thing that even remotely helps the issue is toggling async_mode_toggle (shift+a). When this is toggled off, the issue is almost completely eliminated, but if I lose a frame it jerks the screen pretty bad, and this happens freqently enough to make me not want to play like this. Seems like I really need this feature to be on. Here's some things I've tried that did not help: Plugged in my original Vive using the HDMI port, and experienced the same issues. Doesn't appear to be specific to the Vive Pro HMD. Reseated every cable multiple times Tried different USB ports Tried a different port on my video card Tried current Nvidia drivers, 445.75, as well as a few older ones (419.17, 397.93) Completely removed Nvidia drivers with a 3rd party video card driver cleaner and clean installed Updated all drivers using Snappy Driver Installer Removed all SteamVR config files and completely uninstalled and reinstalled SteamVR Set PC to 'High performance' Set NVIDIA power management to Prefer maximum performance Set SteamVR to disable power management MSI motherboard but I've never installed afterburner No hardware monitoring software installed No overclocking software installed System is not overclocked in any way Removed Avast antivirus as it was on the conflicting software list Disabled Windows Defender No other software installed that is listed on the conflicting software for SteamVR SteamVR motion smoothing on and off Graphics and texture sizes set to lowest option Tried SteamVR beta Here's a few examples of what this looks like from the frame timing window: Edited April 5, 2020 by BloodSyphon Link to comment Share on other sites More sharing options...
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