forked from unom/punktfunk
enricobuehlerandClaude Fable 5
925130d1f9
Since the cursor-channel work, every Linux virtual output was created in metadata pointer mode — making ALL sessions depend on host-side cursor compositing, including the ones that can never use the channel (Moonlight/ GameStream, legacy clients, capture-mode starts). Those sessions paid the blend bring-up per session and, whenever a visible cursor was composited, the loss of NVENC's stream-ordered submit — for a strictly worse cursor than the compositor's own. Mirror the Windows no-regression gate: the already-wired per-session set_hw_cursor(cursor_forward) now drives the Linux backends too. A cursor-channel session gets metadata (shapes forwarded, composite flip blends host-side — today's validated path, unchanged); every other session gets the pointer compositor-EMBEDDED at creation (KWin zkde pointer=2, Mutter cursor-mode=1, wlroots/hyprland portal CursorMode::Embedded — their pre-channel default; the portal pair also gains the Metadata arm for channel sessions, wired but untested on-glass). SessionPlan.cursor_blend narrows to cursor-forward sessions and rides into the direct-SDK NVENC open, which skips the Vulkan slot-blend bring-up entirely when off — embedded sessions ring on plain CUDA surfaces and pay zero cursor cost, per-session or per-frame. The keep-alive registry's reuse key grows the created pointer mode (new VirtualDisplay::hw_cursor getter): a kept embedded display has no cursor metadata for a channel session to forward, and a kept metadata display would leave a channel-less session with no pointer in its frames. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>