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Setup advice
Issac Dowling edited this page Aug 16, 2021
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- you need a fast PC: ALVR is no cheap alternative to a PCVR HMD
- Again, a highend CPU/GPU is needed, if you run at 100% load, something will get lost
- ALVR does support SteamVR multisampling and you can also set the video resolution
- I have a gtx1070 and cannot run Skyrim at SS 1.25, you probably can't either!
- If your PC can barely keep the 72Hz, you will drop frames! SteamVR motion smoothing is not compatible. You need! the 72fps
- Dropping frames on rendering is very bad for ALVR and the overall experience.
- Check dropped frames using Advanced Settings
- higher bitrates will cause higher delays
- Update all drivers including network
- A wired connection from your PC to the 5Ghz is required, not optional
- Choose a free WiFi channel, I'm using the dfs channel 136 cause nothing else was free. Lower is better. Use a wifi analyser for your smartphone to check
- ALVR suffers a lot of the WiFi is crowded with other devices. Check it.
- Avoid mixed WiFi band and protocols, and use only 5Ghz ac protocol.
- Eventually, use a separated 5Ghz WiFi access point for HMD-PC connection. No need for a router, an access point is sufficient and there are very cheap ones on the market.
- Start with 100% res video and 30mbit- 200kb buffer settings. In this config it should be butter smooth, with almost no lag and no packet loss. If you have packet loss, it’s probably not a matter of ALVR settings but almost certainly network problems.
- Limit your WiFi channel width to 40Mhz for better performance with ALVR
- Firewalls and virus scanner can interfere with the network traffic. Windows defender and Sophos endpoint protection seem to work, others may not
- Enable full duplex in your network settings, just incase it wasn't enabled already (it should be)
Someone did a few blogpost on some of the points: https://imaginevr.home.blog/author/imaginevrresearch/
some points came from FingrMastr