ce043cdfdb
session_start() calls seat_read_active_vt() before setting s->started = true. seat_read_active_vt() can reach seat_triggered_uevents_done() synchronously via: seat_active_vt_changed -> seat_set_active -> seat_trigger_devices -> seat_triggered_uevents_done When seat_trigger_devices() produces no pending uevents, seat_triggered_uevents_done() runs in the same call stack as session_start() and tests session->started before the assignment further down. The check fails, session_device_resume_all() is skipped, and the compositor never receives DRM master. Set started before seat_read_active_vt() so the gate sees the correct value, and document the ordering constraint at the call site to prevent regression. Reproducible with greetd plus a Wayland compositor on the same VT on kernel 6.19+. Fixes: #41562 Signed-off-by: countgitmick <263313427+countgitmick@users.noreply.github.com>
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