[HL2] [Linux] Glitched shadows on native Linux version

[DenAkimov]

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Distribution: Linux Mint 22 Cinnamon Kernel: 6.8.0-48-generic GPU: Geforce RTX 3050 GPU driver: 560.35.03-0ubuntu0~gpu24.04.4

Issue is not present when running 20th anniversary through Proton or when running the steam_legacy version natively.

Video: https://streamable.com/avq8g7

[NotHyper-474]

~~Might be the same as https://github.com/ValveSoftware/Source-1-Games/issues/6540.~~

Is the issue also present when using -vulkan?

[DenAkimov]

Yes, using vulkan launch command doesn't fix the issue.

[jyetcv]

I have been getting the same issue with shadows from certain objects.

https://github.com/user-attachments/assets/1dfbcde9-dbd5-4064-ad69-4c52f4b6ab96

https://github.com/user-attachments/assets/58153ae6-0bc1-4266-95fb-1b903ef8a21a

[vide0hanz]

Noticable on NPC faces too. I think this happens even on the legacy version while using -vulkan, can't remember.

[pseregiet]

I have been getting the same issue with shadows from certain objects.

I have exactly the same bug on my machine. I've got an AMD rx590 gpu.

[vide0hanz]

Worth noting this happens on Steam Deck too, latest stable OS/Client. Verified it was using the Linux runtime (scout) for good measure.

[nonetrix]

Same issue here, I assume it's maybe using Vulkan by default now? Perhaps try to use ol' reliable OpenGL renderer, I think it's -gl or -ogl. Might(?) be slower, but I doubt anyone's PC that's already Vulkan compatible struggles with Half Life 2 much

[NotHyper-474]

Same issue here, I assume it's maybe using Vulkan by default now? Perhaps try to use ol' reliable OpenGL renderer, I think it's -gl or -ogl. Might(?) be slower, but I doubt anyone's PC that's already Vulkan compatible struggles with Half Life 2 much

Source games generally show the current renderer in the window title so I can confirm the default is still OpenGL.

[d07434b2c08f]

I had this bug on OpenGL at least 6 months before the 20th anniversary update (specifically those weird shadows from the car and train on the coast bridge), and I still have the bug if I switch to steam_legacy, so I'm not sure that any recent updates would be the root cause.

[nonetrix]

If it's older this issue could be duplicate, but I didn't find any in my limited search

[CelDaemon]

Currently having the same issue, isn't this odd considering hl2 is specifically targeting linux for the steamdeck?

[vide0hanz]

Same issue here, I assume it's maybe using Vulkan by default now? Perhaps try to use ol' reliable OpenGL renderer, I think it's -gl or -ogl. Might(?) be slower, but I doubt anyone's PC that's already Vulkan compatible struggles with Half Life 2 much

I think the main issue to be aware of with this is that it uses the old openGL translation layer, which can result in some stuttering on a fresh playthrough. I think I remember having some weird issues w/ vsync using that one as well, at least on xorg. If I remember correctly, it's similar to how -vulkan is actually using dxvk-native under the hood, at least that's what it used the last time I checked anyway.

[stochmalm]

I'm having those glitches on my Steam Deck as well. Especially visible on the buggy section of the game.

[dotPinto]

Adding -vulkan to the launch option actually fixed it for me. I'm on Nobara Linux 42 on AMD GPU