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The uinput refresh worker released UINPUT_REFRESH_BUSY on its two normal exits only. The body locks several process-wide mutexes and does a Wayland roundtrip, so an unwind there left the flag set for the process lifetime, and every later hotplug then skipped the spawn and never reapplied the uinput ABS range: the stale-range, wrong-output symptom the refresh exists to prevent. This file already had the answer for the probe flag, one screen away, and the hazard is called out in wayland.rs. Fixing one site and not the other is the same miss as the hotplug maps. The slot is deliberately handed back and re-taken mid-loop, so the guard tracks ownership rather than releasing unconditionally: a plain RAII drop would clear a flag a replacement worker owns. drm_reader bounded only the destination (w*4*h) while the row loop reads up to (h-1)*stride + w*4, so a large stride read past the mapping and could overflow usize in y*stride. drm_render::convert already bounds stride*h; the privileged half must not be the weaker of the two. Also give the drm CI jobs a timeout, so a hung meson or vcpkg step fails in an hour instead of six.