enricobuehlerandClaude Fable 5
6617275387
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Field triage (Nobara, Discord): the kde.md starter host.env told desktop users to set PUNKTFUNK_COMPOSITOR=kwin, which PINS the backend — detect() short-circuits and the capture-loss rebuild never re-detects — so a mid-stream switch to Game Mode killed the stream instead of following it. A follow-up hardcoded XDG_RUNTIME_DIR=/run/user/1000 anchor broke PipeWire for any non-1000 uid (pw audio connect: Creation failed). Revamp across every starter/example/reference: - Desktop starters (kde/gnome/hyprland/sway) shrink to PUNKTFUNK_VIDEO_SOURCE=virtual + an explicit warning that pinning disables session-following; forcing a backend is CI/appliance-only. - host.env.example: rewritten around auto-detection; anchors demoted to a commented ssh/cron-only block with the uid trap spelled out; the gamescope ATTACH/MANAGED knobs documented (previously missing); case-sensitivity called out. - packaging/bazzite/host.env + README: drop the uid-1000 anchors (a systemctl --user service inherits/derives them); README's stale PUNKTFUNK_COMPOSITOR=gamescope-era template synced to the real one. - packaging/kde/host.env: loud APPLIANCE-ONLY header (it pins on purpose). - configuration.md: session-anchors section inverted to "leave unset", compositor row states the pin consequence, case-sensitivity note. - troubleshooting.md: new "session fails right after editing host.env" section (case, wrong-uid anchors, stale pin, restart-to-apply). - gamescope.md/bazzite.md: attach/managed descriptions match current behavior (managed is the infra-detected default; attach re-modes a box-owned session to the client's resolution). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
31 lines
2.0 KiB
Bash
31 lines
2.0 KiB
Bash
# punktfunk host config for a Fedora/Ubuntu KDE Plasma appliance (kwin backend).
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#
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# APPLIANCE-ONLY: this file deliberately PINS the backend (PUNKTFUNK_COMPOSITOR) and the session
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# env (WAYLAND_DISPLAY/XDG_CURRENT_DESKTOP) at the dedicated headless KWin session — which also
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# turns OFF the host's live-session auto-detection and Desktop<->Game following. On a normal
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# desktop (or any box that switches to Steam Game Mode) do NOT use this file; start from
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# host.env.example instead, whose defaults auto-detect and follow the live session.
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#
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# Copy to ~/.config/punktfunk/host.env. Pairs with punktfunk-kde-session.service, which brings
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# up a headless `kwin --virtual` on wayland-kde (with KWIN_WAYLAND_NO_PERMISSION_CHECKS=1 so the
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# host can bind KWin's privileged zkde_screencast protocol — an interactive Plasma session will
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# NOT hand that protocol to an external client). The host streams a per-client virtual output
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# from that session, captured zero-copy (dmabuf -> CUDA -> NVENC) on NVIDIA.
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WAYLAND_DISPLAY=wayland-kde
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XDG_CURRENT_DESKTOP=KDE
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PUNKTFUNK_COMPOSITOR=kwin
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PUNKTFUNK_VIDEO_SOURCE=virtual
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# GPU zero-copy (dmabuf → CUDA → NVENC) is ON by default; auto-falls back to CPU. Set =0 to force CPU.
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PUNKTFUNK_INPUT_BACKEND=libei
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# UDP Generic Segmentation Offload on the send path: coalesce a frame's equal-size packets into
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# kernel super-buffers (one sendmsg per ~64 packets instead of one per packet) — the dominant
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# lever above ~1 Gbps, where per-packet send syscalls/pps become the host bottleneck. Safe: it
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# auto-falls back to sendmmsg on any kernel/path that rejects UDP_SEGMENT. Set PUNKTFUNK_GSO=0 to
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# force it off if a NIC/middlebox mishandles GSO segments.
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PUNKTFUNK_GSO=1
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# Make the per-session streamed output the SOLE desktop, so plasmashell + windows render on it
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# rather than on the headless session's `kwin --virtual` bootstrap output (without this the client
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# sees only the wallpaper of an empty extended output). KWin re-homes the desktop; the bootstrap is
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# re-enabled on teardown.
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PUNKTFUNK_KWIN_VIRTUAL_PRIMARY=1
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