enricobuehler
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ci / rust (push) Has been cancelled
Per the new docs workflow (docs-site = KB layer; repo docs/ keeps design notes): - Add a canonical Status & Progress tracker (status.md): milestones, per-box live state, and a dated progress log — the go-forward place to track progress. - Add setup guides: GNOME/Mutter host (gnome-box — Secure Boot MOK enroll, the libnvidia-gl EGL fix, autologin, screen-lock disable, appliance unit), headless KDE box, and Bazzite host (ujust input group, gamescope session, gotchas). - Roadmap is now canonical in docs-site (synced the skew-handshake section 12 update); removed the repo docs/roadmap.md copy and repointed README to docs-site. - Nav (meta.json) + landing cards updated; site builds (bun run build). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
50 lines
2.4 KiB
Markdown
50 lines
2.4 KiB
Markdown
---
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title: "Bazzite / SteamOS-like Host"
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description: "Run punktfunk on Bazzite as a headless Steam host — gamescope session at the client's mode, input perms, and the gotchas."
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---
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Running punktfunk on **Bazzite** (Fedora Atomic / SteamOS-like) as a headless game-streaming host.
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The host launches a **gamescope** session at the *client's* exact resolution + refresh, so games see
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the client mode, not the box's TV. Full packaging (COPR / RPM / bootc) is in
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[`packaging/bazzite/README.md`](https://github.com); this page is the operational quick-reference.
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## Input permissions — use the ujust command
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Gamepad + DualSense injection needs the user in the `input` group. On Bazzite you **can't** just
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`usermod -aG input` (the immutable base + how the group is managed) — use the provided recipe:
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```sh
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ujust add-user-to-input-group
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```
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The udev rule (`60-punktfunk.rules`) grants access to `/dev/uinput` and `/dev/uhid`. A DualSense that
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shows "detected but no input" is almost always this **host-side** `/dev/uhid`/`/dev/uinput`
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permission, not a client bug — confirm the input group + the udev rule, then re-login.
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## Headless Steam session at the client's mode
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The host owns a `gamescope-session-plus` session and relaunches it when the client mode changes, so
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games run at the client's resolution + refresh (`--nested-refresh` + a generated CVT mode). Requires
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the headless-appliance prerequisites (linger + `multi-user.target`) and **no** physical gaming
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session running. Configure via `host.env`:
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```sh
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PUNKTFUNK_COMPOSITOR=gamescope
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PUNKTFUNK_GAMESCOPE_SESSION=steam # host owns the session at the client mode
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PUNKTFUNK_INPUT_BACKEND=gamescope
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```
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## Gotchas
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- **gamescope ≥ 3.16.22 required.** Older versions deadlock capturing on PipeWire ≥ 1.6 (a loop-lock
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bug), and a wedged capture link head-blocks the whole PipeWire daemon. Never `pkill -x gamescope-wl`
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on a box where it's the live session compositor — it kills the user's session.
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- **The hardware cursor isn't in the capture** (gamescope limitation; won't-fix for now).
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- **HDR is blocked upstream**: gamescope's capture node is 8-bit only (PipeWire HDR export
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unimplemented), so HDR/10-bit is deferred even though the downstream encode path is ready.
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## FFmpeg
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Bazzite ships FFmpeg 7.x / libavcodec 61 — `ffmpeg-sys-next` auto-detects it and the host builds
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against it (validated live). NVENC (`hevc_nvenc` / `av1_nvenc`) works through the system FFmpeg.
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