SteamVR is upsidedown

[KaziiTheAvali]

This seems to be a reoccuring issue as https://www.reddit.com/r/virtualreality_linux/comments/1foahw1/help_needed_with_vive_pro_2_steamvr_vive_pro_2/ aswell has this isue. the display and everything in it is upsidedown. making it impossible to play any games and even nausating. for me i get this error even though proton is installed in enabled system things

[iondc]

just made a github account to say this i did a temporary fix. go to bin/driver-proxy/src/driver/hmd.rs

go to around line 131 it should say let inverse = self.lens.matrix_needs_inversion()?;

i commented it out and changed it to

let inverse = false;

didnt fix the lens distortion helper and things do look kinda fuzzy but they aint upside down anymore. now i just gotta figure out why it never renders the floor

[CertainLach]

You don't see the floor, because you see the wrong side of textures, because you have inverted matrix

Upside-down texture and distortions would be only fixed by having working distortion helper. I'm not sure why it doesn't find proton for some people, but you can try setting WINE=/path/to/wine %command% as SteamVR command line.

[iondc]

i can say for a fact proton is working. i wrote a very barebones c program that opens a win32 message box:

#include <windows.h>
#include <winuser.h>

int main(int argc, char **argv){
    MessageBox(NULL, "my original code said something funny", "proton checks out", MB_OK | MB_ICONINFORMATION);
    return 0;
}

compiled with x86_64-w64-mingw32-gcc and replaced lens-server.exe with it. no special launch command, steamvr seems like it wanna use proton hotfix

and of course it shows the message box just fine, and when i click ok i get the same failed to fill whole buffer dialog i always got. imma play around with the starting code and the pipes, i dont know rust though so i guess now a good time to learn. or maybe im missing dlls or something like that other issue

also tried WINE=/usr/bin/wine %command% same outcome

[CertainLach]

I wonder if lens-server is not being ran as console app for you, I have seen that happen, but it didn't for me?

Does adding #![windows_subsystem = "console"] As the first line of https://github.com/CertainLach/VivePro2-Linux-Driver/blob/master/bin/lens-server/src/main.rs makes anything change for you?

lens-server is not supposed to be started as a dedicated window, it is a console app talking over stdio.

[iondc]

i just tried that, it didnt change anything. but i saw some comments about missing dlls from #33 so i copied vkd3d-1.dll and vkd3d-shader-1.dll over from another prefix into drive_c/windows/system32 and it works now! everythings back upside down so imma undo my patch on driver-proxy/src/driver/hmd.rs, textures stopped being upside down too :)

[CertainLach]

Huh, those aren't direct dependencies of LibLensDistortion, perhaps your wine prefix was broken for some reason?

[iondc]

i think opencv_world needed those. was definitely something wrong with the prefix

[KaziiTheAvali]

i just tried that, it didnt change anything. but i saw some comments about missing dlls from #33 so i copied vkd3d-1.dll and vkd3d-shader-1.dll over from another prefix into drive_c/windows/system32 and it works now! everythings back upside down so imma undo my patch on driver-proxy/src/driver/hmd.rs, textures stopped being upside down too :)

are you able to give me your system32 or profile. i have done this and it is still upsidedown for me

[KaziiTheAvali]

never mind. i it ended up that there was more stuff missing in my system32 and just copying the whole system32 from a nother game (i think h3) worked

[KaziiTheAvali]

ofc i still struggle with updating devices. hope that doesnt come back to bite me later on.

[CertainLach]

I wonder why is yours prefixes so borked, and how can I fix this at the driver side, both proton and default nixos wine installation works just fine for me.

You can get debug logs for dll loading by setting WINEDEBUG=+loaddll,+warn environment variable.

[iondc]

im kinda tempted to write a simple script that can tell if its missing dlls and download them, and maybe get the error handler that shows the message to run that script too.

@KaziiTheAvali btw now that you got it working, are you seeing double by any chance? i noticed my left eye was being rendered by what looked like 1ft lower than my right eye and i did another workaround somewhere to make it render the right eye 50 pixels lower than the other. i can try and find out where i put it if you want it, its not an exact fix and imma make an issue for it but everything is really comfortable now

[4inzler]

here is how you fix the problem install proton and then it updates and then just uninstall proton and for some apparent reason it fixes the issue I have no clue why just did.

[HexSegfaultCat]

I also managed to get it working. For some reason when you run proton runinprefix start.exe ... if prefix does not exist then it doesn't create all the DLLs in system32, but when you run proton run then it properly creates the prefix and then the Lens Server works.

Here's the steps I did to create the prefix:

# Proton prefix directory
STEAMVR_COMPAT_DIR="${HOME}/.steam/steam/steamapps/compatdata/250820"

# Required environment variables for running Proton outside of Steam
export STEAM_COMPAT_CLIENT_INSTALL_PATH="${HOME}/.steam/steam"
export STEAM_COMPAT_DATA_PATH="${STEAMVR_COMPAT_DIR}"

# Remove current Proton prefix and create an empty directory (required for next step)
rm -r "${STEAMVR_COMPAT_DIR}"
mkdir -p "${STEAMVR_COMPAT_DIR}"

# Use `run` command to create prefix in `STEAMVR_COMPAT_DIR`
"${STEAM_COMPAT_CLIENT_INSTALL_PATH}/steamapps/common/Proton - Experimental/proton" run

Then, in launch options for SteamVR set PROTON_VERSION="- Experimental" %command% if you have multiple Proton versions installed to make sure the Lens Server uses proper version (I belive it chooses 9.0 instead of Experimental by default):

And also one more important thing - make sure you do not have PROTON_LOG=1 set in the launch options - the server communicates by sending data to stdout and this causes timeouts as it is redirected to a log file.

[jmoney7823956789378]

i did another workaround somewhere to make it render the right eye 50 pixels lower than the other.

I just ran into this today. Can you post your steps to this issue, if possible? I tried searching but found little for vertical offset.

[paraxial]

(First of all -- thanks @CertainLach for your work on this driver -- to even get this close is great.)

Jumping onto this issue, as I believe that I'm still experiencing it. (Let me know if it seems different enough to warrant a separate issue.)

To be difficult, I am running Ubuntu 24.04.2 LTS.

uname -r: 6.16.0-rc1-g60ba94338047-dirty

I've:

• patched the kernel;
• installed the drivers from Patreon (0.7.0);
• modified HexSegfaultCat's script a little for my atypical steam install (STEAMVR_COMPAT_DIR="/mnt/games/SteamLibrary/steamapps/compatdata/250820");
• checked that I can run the lens-server manually:

❯ wine lens-server.exe
 INFO lens_server: hello from lens server
 INFO lens_server: dll path: "Z:\\home\\paraxial\\.steam\\debian-installation\\steamapps\\common\\SteamVR\\drivers\\lighthouse\\bin\\linux64\\lens-server\\LibLensDistortion.dll"

• Attempted pulling the system32 from my Beat Saber installation and putting it into the SteamVR compatdata

However, I'm still caught on:

Trying to add WINE=/usr/bin/wine PROTON_VERSION="- Experimental" %command% results in: (which seems weird, since, of course, which wine gives me /usr/bin/wine)

I'm at a loss for what to try next, and don't have a lot of experience with this kind of tinkering. What information can I provide?

[HexSegfaultCat]

@paraxial

This looks like a different issue. Could you look at vrserver log file (Steam/logs/vrserver.txt)? Look for lines with prefix lens_client. I checked the code and it seems like the error "can't find wine in PATH" can only occur when Proton directory doesn't exist (then it falls back to using wine from PATH).

Now I don't know why it can't find wine's binaries, but I might have an idea why it can't find Proton. In your comment you mentioned 2 storage directories for Steam (home dir and /mnt) - you need to make sure Proton directories are in the same parent dir as SteamVR (meaning if your SteamVR is at $HOME/Steam/steamapps/common/SteamVR then Proton needs to be at $HOME/Steam/steamapps/common/Proton 9.0).

So remove WINE from launch options (when WINE is set it ignores Proton and only tries to use the specified wine binary), but keep PROTON_VERSION, make sure Proton - Experimental is next to SteamVR directory and try to run SteamVR.

[paraxial]

@HexSegfaultCat

You're absolutely correct -- I've moved my proton installation into the 'same root' as SteamVR now. I briefly had the same error as #23, but like them, found that wiping my home steam directory and restarting fixed it.

Thank you so much for your help, all works now!