CONFIRMED on the live RTX4090+iGPU box: hook fires+verified, DPI=2, overlay
running, yet the stream STILL freezes -- born-lost dropped but MODE_CHANGE_IN_
PROGRESS (0x887A0025) churn took over (2284x) and frames go stale. Root cause
is the topology itself: create() makes SudoVDA the SOLE active display
(CDS_SET_PRIMARY + isolate_displays + isolate_displays_ccd), and a sole display
on a hybrid box goes into fullscreen independent-flip / MPO that Desktop
Duplication cannot capture.
Apollo is rock solid on this EXACT box because it does the opposite: it keeps
the physical monitor ACTIVE and arranges the virtual display alongside it
(rearrangeVirtualDisplayForLowerRight, 'Do not change the primary'). Multi-
display is DWM-composited, so the output never independent-flips.
Make isolation OPT-IN (PUNKTFUNK_ISOLATE_DISPLAYS=1) and default to NOT
isolating -- match Apollo's multi-display topology. SudoVDA stays primary (so
it carries the shell -> frames) but other monitors stay active, which disables
independent-flip. reassert_isolation honors the same flag (re-isolating mid-
stream would itself trigger the storm). Keeps the overlay + born-lost escape
as belt-and-suspenders.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
enricobuehler
cd72164db2