I’ve seen reference to this in the Steam forums for both Pimax and Vive HMDs: The current (as of Jan 2025) version of SteamVR is causing something that looks a lot like the backlight strobing at the refresh rate of the HMD. Rolling back to the “Previous Build” of Steam VR is the only thing that fixed it. Pimax 8kx, Win 11, current Pimax software release.
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With reports from the Crystal the current fix for SteamVR related issues is to roll back steamVR to 2.7.4
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Can confirm was having this issue on my original Crystal until I rolled back steamVR version. Very strange white flickering in Steam home like a broken backlight on the display panels
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Just recently saw on Reddit the public beta channel for pimax play may also fix things with SteamVR
8Kx Bright white strobing too.
Rolling back SteamVR is the current fix.
only way for me to use steamvr is to be in version 2.7.4(previous version)
(these issues are also on the 5K plus, Super and my 8KX)
both normal and beta has not fix anything(specially beta)
for months.
Same issue, same workaround. @PimaxQuorra are you in contact with SteamVR developers? They are kinda ignoring this issue when reported from us mortals. It is already more then 2 months with it.
this is my thread in steamvr, not the only one, even some other HMDs are affected: Pimax crystal; steamvr often flicker, slide-show, turning head is not 1:1 :: SteamVR Bug Reports
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Have you tried the 1.37v version of Pimax Play?
You can update to this version by enabling the “Public Test Channel” in the settings tab of Pimax Play.
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Wow, it is working good with latest steamvr! Good job 
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