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Does anyone know why some games have this weird lighting glitch? (sh.itjust.works)
submitted 2 weeks ago by to c/linux_gaming@lemmy.world
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I’m trying out Bazzite again after about a year with CachyOS because I don’t have time for tinkering anymore and only play games maybe once a month or so. Anyway, I’m playing some Hitman tonight and noticed this lighting bug a few times. I remember seeing it in Cyberpunk 2077 when I was using Bazzite about a year ago too, shortly before I switched to CachyOS. Does anyone know what’s causing it and how to fix it? If it’s a big deal to fix I won’t bother as I don’t have much time for computers, and don’t want to spend most of that fixing a bug. I took a couple more pictures too, I’ll show below.

If it’s important at all, this is pretty much a clean install, I haven’t done any tinkering at all and have barely downloaded anything either. I downloaded a VPN, a password manager, and otherwise I think everything else is what came with the distro. I have the game running from an external HDD if that makes a difference. I played the game a couple months ago on CachyOS with zero issues.

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[–] 72 points 2 weeks ago (2 children)

DXVK cache lingering between driver versions has occasionally gotten me similar effects. You can delete the shader cache in the proton prefix and see if that helps.

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  • [–] [S] 13 points 2 weeks ago (2 children)

    How would I go about doing that?

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  • [–] 2 points 1 week ago* (1 child)

    Home/.steam/steam/steamapps/compatdata

    That should be, if you are on Bazzite, the dir that houses all the Proton data for each game.

    Home/.steam/steam/steamapps/shadercache

    And that should be the ... basically the shaders assembled by Proton.

    Unfortunately, the individual folders in those dirs, per game, are all named with an ID number that Steam uses internally.

    You probably can figure out which specific game is which number, or, you can just wipe out everything in the compatdata and shadercache folder.

    Doing that will essentially clear out Proton, Steam will then redownload Proton and rebuild game specific shader caches, as per your settings as to if that is automatic or on game launch.

    You might need to shutdown and restart Steam, or reboot the system, or jump in and out of deck-game mode or something like that, to fully kick Steam into realizing you just performed surgery on it and it should start healing.

    If that doesn't work, in Bazzite terminal:

    ujust fix-reset-steam

    This is a much more thourough reset process though, read up on it.

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  • [–] [S] 2 points 1 week ago (1 child)

    Thanks, I’ll look into this. I appreciate the help.

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  • [–] 2 points 1 week ago* (last edited 1 week ago) (1 child)

    No prob!

    Did any of this work out... or problem still perists?

    EDIT

    Oh shit... actually read your full initial comment.

    Yes, if the entire game... or Steam... is running from an external HDD... including the shaders and such?

    Shaders generally are used many times, every frame.

    Having those on an internal SSD could make a difference, and possibly be part of the problem you've shown, depending on your total hardware setup.

    Generally speaking, more graphically complex 3D games that make substantial usenof shaders should be run from an internal SSD.

    You can do HDD for 2D or less complex 3D games and its usually fine, but if fancy pants shaders are involved in many more modern games, use an SSD if you can.

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  • [–] [S] 2 points 1 week ago

    That makes a lot of sense actually. Maybe I’ll try installing it on the internal ssd first before doing anything else. As mentioned I don’t spend much time on my pc so it might be a bit before I actually try anything to fix it, but I’ll start with installing it on ssd first and then your other solution after if it doesn’t work.

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  • [+] -40 points 2 weeks ago* (1 child)

    Upload entire filesystem to https://grokdeepseekinsideollamasgpt.ai/ and ask it for the meaning of life. It will print out a 8 page long story for you to parse thru while some russian opens floodgat3s on your router so you can croud source with china on how to find your chache folder!

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    • [–] 63 points 2 weeks ago (2 children)

    Hope your gpu is not dying bud

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  • [–] 27 points 2 weeks ago (1 child)

    This doesn't happen on the person, only in the wall. The lightning on the back of his head is good, so this is a shader issue probably

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  • [–] 9 points 2 weeks ago (1 child)

    Vram errors can cause simílar glitches.

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  • [–] 5 points 2 weeks ago (1 child)

    Those usually affect the whole image independent of the objects limits in the 3d space.

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  • [–] 10 points 2 weeks ago (1 child)

    This is not true. Different shaders could be stored in different parts of the memory, so a VRAM issue could definitely affect only specific surfaces. Other GPU issues might affect the whole image but it's not a sure thing.

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    • [–] 60 points 2 weeks ago

    You’re so lucky, this is the foil version of the game! Very rare.

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    [–] 23 points 2 weeks ago

    When I had a GPU overheat I started seeing RGB dots everywhere. Not quite the same as this, but I’d be a bit worried it might be a hardware issue.

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    [–] 20 points 2 weeks ago (2 children)

    Hitman 2016 has a native linux version which is broken. My experience was exactly like your screenshots. Try the windows version instead.

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  • [–] 9 points 2 weeks ago (1 child)

    I think Stardew and Rimworld are the only games i've played where the native linux versions werent completely fucked up and broken in some way.

    So I pretty much always recommend playing the windows version via proton.

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    • [–] 17 points 2 weeks ago

    Depends on a huge amount of variables, but it looks like a texture rendering issue with lighting for whatever GPU you're running. Check the various code repos for your rendering issue, or the Proton issues and see if others are reporting it.

    Also check protondb.com to see if others have a fix.

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    [–] 11 points 2 weeks ago (1 child)

    I’m not sure what you mean. Isn’t that how everyone else sees the world too?

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    • [–] 10 points 2 weeks ago

    I want this wallaper.

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    [–] 9 points 2 weeks ago (1 child)

    I can't help you, but I gotta say that is a cool effect. Some game should do that intentionally for a character who's on mushrooms.

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  • [–] [S] 4 points 2 weeks ago

    Yeah I was thinking the same thing actually. These screenshots were from the Chongqing level, which in the game is like a neon city, so in some areas this lighting effect was actually quite good looking.

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    • [–] 8 points 2 weeks ago (1 child)

    What version of proton are you running? Cachy has its own version that works great, I'm using it on arch via the AUR altho I don't run cachy. Idk what bazzite comes with.

    Do you only see this issue on bazzite?

    There are other arch based distros you might have better mileage on if you keep having this issue with bazzite but want something different than cachy, like endeavorOS.

    Also protondb you can filter by hardware to get even better results.

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  • [–] 3 points 2 weeks ago (1 child)

    You can use Cachy proton on Bazzite by simply selecting it in the compatibility options. It's one of the versions in the drop down menu.

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    • [–] 8 points 2 weeks ago* (2 children)

    Slightly off topic i guess, but in confused what needs tinkering on cachy. Just need to update sometimes?

    Sounded like games ran just fine on cachy and you changed for what reason?

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    • [–] 6 points 1 week ago (1 child)

    I wish I could get actual wallpaper that looked like this. Some guests might have a mental breakdown as they realize they've been living in a (buggy) simulation this whole time.

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    • [–] 4 points 2 weeks ago

    Try a different proton version. Do you know how to do that or do you need some assistance? Assuming this is being played from Steam using Proton.

    In addition to that, play around with the graphics/video settings. Could be related to something like DLSS or frame generation.

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    [–] 4 points 2 weeks ago

    I got this glitch in FH5 in Windows. I have seen it slightly more frequently after switching to Linux, but it still nearly never happens.

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