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Now that the per-capture worker subprocess makes an NVENC EGL/CUDA driver fault survivable (design/zerocopy-worker-isolation.md), the reason the NVENC zero-copy path stayed opt-in is gone. zerocopy::enabled() now defaults ON for both GPU backends (was ON VAAPI / OFF NVENC). Fallbacks are intact: VAAPI's one-shot CPU auto-downgrade (VAAPI-gated, never trips for NVENC) and NVENC's per-capture fallback + worker-death latch. Reframe the shipped host.env examples and setup guides to rely on the default rather than force PUNKTFUNK_ZEROCOPY=1 (an explicit =1 skips the VAAPI auto-downgrade). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
72 lines
4.7 KiB
Bash
72 lines
4.7 KiB
Bash
# punktfunk host configuration (~/.config/punktfunk/host.env) — consumed by punktfunk-host.service.
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#
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# The compositor + input backend are AUTO-DETECTED per connect from the live session (the host
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# probes which compositor is actually running and retargets WAYLAND_DISPLAY/XDG_CURRENT_DESKTOP/
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# DBUS at it), so a box that flips between Steam Gaming Mode and a KDE/GNOME desktop is followed
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# automatically. The blocks below are OPTIONAL OVERRIDES — uncomment one only to force a backend
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# (this also skips the per-connect env retargeting). The anchors XDG_RUNTIME_DIR + DBUS stay.
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# Session / compositor environment (headless KWin example).
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XDG_RUNTIME_DIR=/run/user/1000
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DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
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WAYLAND_DISPLAY=wayland-kde
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XDG_CURRENT_DESKTOP=KDE
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# Video source: `virtual` creates a per-client virtual output at the client's exact
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# resolution+refresh (the flagship mode); `portal` captures an existing monitor.
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PUNKTFUNK_VIDEO_SOURCE=virtual
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# GPU zero-copy capture (dmabuf → CUDA → NVENC / VAAPI / Vulkan) is ON by default and falls back to
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# CPU automatically. No need to set it. Set to 0 only to force the CPU path.
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# PUNKTFUNK_ZEROCOPY=0
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# --- Bazzite / SteamOS-like host: host-managed Steam-Deck-UI session -----------------------
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# The host LAUNCHES gamescope-session-plus headless AT THE CLIENT'S mode (so games see the
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# client's exact resolution + refresh, not the box's TV), and relaunches it when the mode
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# changes. Requires the headless-appliance prereqs (linger + multi-user.target — see
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# punktfunk-steam-session.service header) and NO physical gaming session running.
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#PUNKTFUNK_COMPOSITOR=gamescope
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#PUNKTFUNK_GAMESCOPE_SESSION=steam # host owns a gamescope-session-plus session at the client mode
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#PUNKTFUNK_INPUT_BACKEND=gamescope
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# Mutually exclusive with the above: ATTACH to a gamescope session something ELSE owns (fixed mode):
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#PUNKTFUNK_GAMESCOPE_NODE=auto # discover + capture a running gamescope (do NOT combine with SESSION)
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# --- GNOME / Mutter host (e.g. an Ubuntu desktop) -----------------------------------------
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# Attach to a running GNOME (Wayland) session — its default socket is wayland-0, not wayland-kde.
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# Mutter creates the per-client virtual output via its `RecordVirtual` D-Bus API (a virtual
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# monitor alongside any real one), and input goes through the RemoteDesktop portal (libei). On a
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# real desktop the host runs as the logged-in user; headless GNOME also works (gnome-shell
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# --headless). Needs GNOME ≥ 48 for the zero-copy RecordVirtual path.
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#WAYLAND_DISPLAY=wayland-0
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#XDG_CURRENT_DESKTOP=GNOME
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#PUNKTFUNK_COMPOSITOR=mutter
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#PUNKTFUNK_VIDEO_SOURCE=virtual
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#PUNKTFUNK_INPUT_BACKEND=libei
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# Optional overrides (apps.json is the primary mechanism for per-app settings):
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#PUNKTFUNK_COMPOSITOR=kwin # kwin | mutter | gamescope | wlroots
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#PUNKTFUNK_GAMESCOPE_APP=vkcube # nested command for ad-hoc bare-gamescope sessions
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#PUNKTFUNK_INPUT_BACKEND=libei # wlr | libei | gamescope | uinput
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#PUNKTFUNK_FEC_PCT=20 # video FEC overhead percent
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#PUNKTFUNK_PERF=1 # per-stage timing logs
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# Display-management policy (keep-alive · topology · conflict · identity · layout · max) is set in the
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# web console (Host → Virtual displays) → ~/.config/punktfunk/display-settings.json, NOT here; a
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# settings file supersedes the legacy PUNKTFUNK_MONITOR_LINGER_MS / _NO_ISOLATE / *_VIRTUAL_PRIMARY
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# knobs. One transport knob has no console equivalent:
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#PUNKTFUNK_IDLE_TIMEOUT_MS=8000 # disconnect-detection latency: how long before a DROPPED client is
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# declared gone (a kept display then starts its linger, or frees).
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# Lower (e.g. 3000) to reclaim kept displays sooner after an
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# ungraceful drop; clamped ≥1s, keep-alive ping scales with it so a
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# live session never false-disconnects. A deliberate quit is instant.
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# Full-chroma 4:4:4 (HEVC Range Extensions) — sharper text/desktop, no chroma loss. Honored only on
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# the punktfunk/1 native path when the client advertises 4:4:4 AND the GPU supports it (probed; else
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# the session stays 4:2:0). HEVC-only; independent of 10-bit. NVENC (NVIDIA) is the validated path;
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# VAAPI/AMF/QSV decline (4:2:0). GameStream/Moonlight always stays 4:2:0.
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#PUNKTFUNK_444=1
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#PUNKTFUNK_10BIT=1 # HEVC Main10 / HDR (when the client advertises 10-bit)
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#RUST_LOG=info
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# Management API bearer token. The mgmt API is HTTPS + token-authenticated ALWAYS (even on
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# loopback); if unset it is auto-generated + persisted to ~/.config/punktfunk/mgmt-token (which the
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# bundled web console sources). Set here only to pin a specific token.
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#PUNKTFUNK_MGMT_TOKEN=
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