SteamVR or PiTool Update - Causing Black Dashed Lines Vertically

I finally got my Pimax 5K Super all optimized yesterday with it being super clear and super smooth, and it seems either PiTool or SteamVR auto updated since I shut the computer down and now I have two vertical black dashed lines at about 20 degrees left and right of center (they’re symmetrical). They don’t show up in any other VR apps outside of MSFS which is strange.

I don’t know whether it’s SteamVR that is the culprit or PiTool.

PiTool version 1.0.1.277
Headset Firmware 2.1.255.273

SteamVR Version 1.24.7

I suspect it is SteamVR that has updated. Anyone know if there’s any way to downgrade to previous version?

i think it’s related to pitool updating plus using openxr toolkit, i assume you are using that? openxr toolkit + some versions of pitool produce these broken vertical black lines in the hmd. you have to use a different version of pitool, or use pimax client, or fix the pitool version u have with a hex editor (the instructions for this are on the openmr forums), or stop using openxr toolkit. i fixed my pitool.

I just spoke with the dev of OpenXR Toolkit and it’s a Pitool bug, version 283 which is in beta fixes it.

i fixed it by hex editing a line of code in my pitool (version 280). version 283 has problems of its own with luke ross mods so i’m not using that.

The hex edit is the alternative option yes!

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Curious what needs changing, I’d rather hex edit 277 for now :slight_smile:

The instructions I followed are in this thread :

To summarize, in any version of PiTool search for the Hex value 44 24 44 04 00 00 00 C7 44 24 3C 04 and change the last value (which is 04) to 03 (I used HxD). So it looks like this :

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