Two new patches on the pinned upstream, and the marker patch moves last so the
banner is stamped after the capabilities it advertises.
0003 — headless: advertise the virtual display's mode and refresh rates.
A headless gamescope is how we give a game a display: we pass the client's exact
mode and the session runs at it. It never told anyone. CHeadlessConnector
returned empty spans from GetModes() and GetValidDynamicRefreshRates() and
reported GAMESCOPE_SCREEN_TYPE_INTERNAL, so update_mode_atoms DELETED the
mode-list atom (no resolution list) and wlserver fell through to a one-entry
refresh list built from g_nOutputRefresh (no refresh list). With --nested-refresh
absent that entry is Init()'s 60 Hz default — which is why a field report on a
1920x1080@120 client saw "gamescope only shows 60hz, and there's no other
option", and why Overwatch capped itself to 60 while the stream ran at 120.
Populate both from the resolved mode, report EXTERNAL, and add
--custom-refresh-rates so the offered set can be widened. gamescope-session-plus
has probed for that flag for years; upstream never had it, so the
CUSTOM_REFRESH_RATES env it plumbs was a no-op everywhere.
0004 — pipewire: optionally composite the external overlay into the capture
stream. That layer is mangoapp: the fps/frametime readout the Deck UI turns on.
paint_pipewire has never referenced it on any version, so a consumer whose only
view of the session is the node sees the overlay it just enabled not appear, with
nothing to configure. Behind --pipewire-composite-external-overlay, off by
default, same argument as the cursor flag. Its commit id joins the repaint test —
the numbers change while the picture behind them is static, exactly the case the
existing test skips.
Verified: the series git-am's cleanly onto the pinned 8c676c39, and both new
functions were extracted verbatim and compiled with -Wall -Wextra under C++23
against stubs, with unit assertions for the parser and the mode/rate publication
(sorting, dedup, the running rate always present, re-entrancy, zero rejected).
A full gamescope build was not run — no box here has its dependency set; CI's
per-Fedora-major leg is the first real compile.
enricobuehler
818531a26e