Miguel Palhas
4d4f9a0b5e
Steam's CEF UI intermittently crashed its GPU child (exit_code=8704) on NVIDIA+Wayland, falling back to CPU rendering and making Big Picture a slideshow at 4K/HiDPI. Bake -cef-disable-gpu-sandbox into every steam invocation via extraArgs so it covers all entry points (desktop, CLI, Sunshine's Big Picture tile) — launch flags only apply on the invocation that first starts Steam. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
24 lines
1.1 KiB
Nix
24 lines
1.1 KiB
Nix
{ pkgs, ... }:
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{
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programs.steam = {
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enable = true;
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remotePlay.openFirewall = true;
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# Steam's UI (store/library/Big Picture) is a Chromium/CEF app. On NVIDIA +
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# Wayland its GPU child process intermittently trips the CEF GPU sandbox and
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# crashes (cef_log: "GPU process exited unexpectedly: exit_code=8704");
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# Chromium then permanently falls back to CPU rendering for that session
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# (--disable-gpu), which turns Big Picture into a slideshow at our 4K/HiDPI
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# scale. Streaming (NVENC + game load hammering the GPU at once) is a common
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# trigger. -cef-disable-gpu-sandbox drops the sandbox around *only* Steam's
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# own UI renderer so the GPU process stops crashing and Big Picture stays
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# hardware-accelerated. extraArgs bakes it into `exec steam ... "$@"`, so it
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# applies to every entry point (desktop, CLI, Sunshine's Big Picture tile) —
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# launch flags only take effect on the invocation that first starts Steam.
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package = pkgs.steam.override { extraArgs = "-cef-disable-gpu-sandbox"; };
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};
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hardware.steam-hardware.enable = true;
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}
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