"...is not supported on this GPU"

[clarkent86]

I see multiple messages related to unsupported GPU features on startup, but the server starts and seems to be running fine. Are these actually issues?

I'm running bepinex via a TrueNAS application deployment without any mods (yet), but I was getting these when running vanilla as well.

Here are some examples:

2023-01-31 14:55:53.063832+00:00Jan 31 14:55:53 supervisord: valheim-server ERROR: Shader Sprites/Default shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:53.063993+00:00Jan 31 14:55:53 supervisord: valheim-server ERROR: Shader Sprites/Mask shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:53.100653+00:00Jan 31 14:55:53 supervisord: valheim-server ERROR: Shader GUI/Text Shader shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:53.101635+00:00Jan 31 14:55:53 supervisord: valheim-server UnloadTime: 0.356074 ms
2023-01-31 14:55:53.125665+00:00Jan 31 14:55:53 supervisord: valheim-server [Message:   BepInEx] BepInEx 5.4.19.0 - valheim_server (1/7/2023 6:11:45 PM)
2023-01-31 14:55:53.125686+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] Running under Unity vUnknown (post-2017)
2023-01-31 14:55:53.125692+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] CLR runtime version: 4.0.30319.42000
2023-01-31 14:55:53.125707+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] Supports SRE: True
2023-01-31 14:55:53.125713+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] System platform: Bits64, Linux
2023-01-31 14:55:53.125718+00:00Jan 31 14:55:53 supervisord: valheim-server [Message:   BepInEx] Preloader started
2023-01-31 14:55:53.125728+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] Loaded 1 patcher method from [BepInEx.Preloader 5.4.19.0]
2023-01-31 14:55:53.125733+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] 1 patcher plugin loaded
2023-01-31 14:55:53.125738+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] Patching [UnityEngine.CoreModule] with [BepInEx.Chainloader]
2023-01-31 14:55:53.125747+00:00Jan 31 14:55:53 supervisord: valheim-server [Message:   BepInEx] Preloader finished
2023-01-31 14:55:53.127871+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] Detected Unity version: v2020.3.33f1
2023-01-31 14:55:53.127946+00:00Jan 31 14:55:53 supervisord: valheim-server [Message:   BepInEx] Chainloader ready
2023-01-31 14:55:53.131080+00:00Jan 31 14:55:53 supervisord: valheim-server [Message:   BepInEx] Chainloader started
2023-01-31 14:55:53.134891+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] 2 plugins to load
2023-01-31 14:55:53.140242+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] Loading [WebMap 1.2.0]
2023-01-31 14:55:53.190736+00:00Jan 31 14:55:53 supervisord: valheim-server WebMap: HTTP Server Listening on port 29487
2023-01-31 14:55:53.191437+00:00Jan 31 14:55:53 supervisord: valheim-server WebMap: Failed to read map image data from disk. Could not find file "/opt/valheim/bepinex/BepInEx/plugins/WebMap/map_data/3_31_22/map"
2023-01-31 14:55:53.215083+00:00Jan 31 14:55:53 supervisord: valheim-server WebMap: Failed to read pins.csv from disk. Could not find file "/opt/valheim/bepinex/BepInEx/plugins/WebMap/map_data/3_31_22/pins.csv"
2023-01-31 14:55:53.215121+00:00Jan 31 14:55:53 supervisord: valheim-server [Info   :   BepInEx] Loading [Display BepInEx Info In-Game 2.0.0]
2023-01-31 14:55:53.241017+00:00Jan 31 14:55:53 supervisord: valheim-server [Message:   BepInEx] Chainloader startup complete
2023-01-31 14:55:53.242167+00:00Jan 31 14:55:53 supervisord: valheim-server 01/31/2023 14:55:53: Starting to load scene:start
2023-01-31 14:55:53.258135+00:00Jan 31 14:55:53 supervisord: valheim-server ERROR: Shader UI/Default shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:53.340379+00:00Jan 31 14:55:53 supervisord: valheim-server Couldn't create a Convex Mesh from source mesh "default" within the maximum polygons limit (256). The partial hull will be used. Consider simplifying your mesh.
2023-01-31 14:55:53.354878+00:00Jan 31 14:55:53 supervisord: valheim-server Couldn't create a Convex Mesh from source mesh "default" within the maximum polygons limit (256). The partial hull will be used. Consider simplifying your mesh.
2023-01-31 14:55:54.362546+00:00Jan 31 14:55:54 supervisord: valheim-server ERROR: Shader Legacy Shaders/VertexLit shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:54.362584+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Unsupported: 'Standard (Specular setup)' - All subshaders removed
2023-01-31 14:55:54.362594+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Did you use #pragma only_renderers and omit this platform?
2023-01-31 14:55:54.362614+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
2023-01-31 14:55:54.362625+00:00Jan 31 14:55:54 supervisord: valheim-server ERROR: Shader Standard (Specular setup) shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:54.362633+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Unsupported: 'Standard (Specular setup)' - All subshaders removed
2023-01-31 14:55:54.362648+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Did you use #pragma only_renderers and omit this platform?
2023-01-31 14:55:54.362656+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
2023-01-31 14:55:54.362672+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Unsupported: 'Standard' - All subshaders removed
2023-01-31 14:55:54.362680+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Did you use #pragma only_renderers and omit this platform?
2023-01-31 14:55:54.362688+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
2023-01-31 14:55:54.362701+00:00Jan 31 14:55:54 supervisord: valheim-server ERROR: Shader Standard shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:54.362708+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Unsupported: 'Standard' - All subshaders removed
2023-01-31 14:55:54.362721+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Did you use #pragma only_renderers and omit this platform?
2023-01-31 14:55:54.362729+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
2023-01-31 14:55:54.365262+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Unsupported: 'Autodesk Interactive' - All subshaders removed
2023-01-31 14:55:54.365285+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Did you use #pragma only_renderers and omit this platform?
2023-01-31 14:55:54.365292+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
2023-01-31 14:55:54.365297+00:00Jan 31 14:55:54 supervisord: valheim-server ERROR: Shader Autodesk Interactive shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:54.365307+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Unsupported: 'Autodesk Interactive' - All subshaders removed
2023-01-31 14:55:54.365312+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Did you use #pragma only_renderers and omit this platform?
2023-01-31 14:55:54.365323+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
2023-01-31 14:55:54.365728+00:00Jan 31 14:55:54 supervisord: valheim-server ERROR: Shader Legacy Shaders/Particles/Additive shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:54.365748+00:00Jan 31 14:55:54 supervisord: valheim-server ERROR: Shader Legacy Shaders/Particles/Alpha Blended shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:54.365757+00:00Jan 31 14:55:54 supervisord: valheim-server ERROR: Shader Legacy Shaders/Particles/Alpha Blended Premultiply shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:54.365771+00:00Jan 31 14:55:54 supervisord: valheim-server ERROR: Shader Unlit/Color shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:54.365778+00:00Jan 31 14:55:54 supervisord: valheim-server ERROR: Shader Lux Lit Particles/ Bumped shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
2023-01-31 14:55:54.365896+00:00Jan 31 14:55:54 supervisord: valheim-server Shader 'Lux Lit Particles/ Tess Bumped': fallback shader 'Lux Lit Particles/ Bumped Smoke' not found
2023-01-31 14:55:54.365918+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Unsupported: 'Lux Lit Particles/ Tess Bumped' - All subshaders removed
2023-01-31 14:55:54.365924+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader Did you use #pragma only_renderers and omit this platform?
2023-01-31 14:55:54.365934+00:00Jan 31 14:55:54 supervisord: valheim-server WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
2023-01-31 14:55:54.365939+00:00Jan 31 14:55:54 supervisord: valheim-server ERROR: Shader Lux Lit Particles/ Tess Bumped shader is not supported on this GPU (none of subshaders/fallbacks are suitable)

I can share more/do more debugging as needed.

Thanks!