fix(qam): resolve Quick Access Menu freeze sur charge jeu - #289
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Le menu de droite (QAM / Quick Access Menu) gelait aléatoirement quand un jeu saturait les cores : deux causes cumulatives. - PluginLoader affamé par CFS : le binaire Decky (FEX x86) tournait en SCHED_OTHER Nice 0, donc le thread CEF/Decky n'était plus ordonnancé sous charge. Drop-in systemd 10-qam-freeze-fix.conf (SCHED_RR 10 + Nice -5 + IOScheduling best-effort) isole Decky de la contention jeu — le jeu reste piloté par armada-powerd/perf. - armada-control bloquait sa boucle selector sur `armada-power reload` (D-Bus PowerProfilesDaemon, 1-3 s) lors d'un write_config power : plus aucun write_config/game_launched n'était traité et les call() Decky timeout -> spinner QAM infini. Le reload est désormais fire-and-forget (thread daemon). Le fix DropdownItemInternal -> Field+Dropdown (armada-os#272) était déjà présent à a09ebab ; ces deux correctifs couvrent les vecteurs restants observés sur console 20260819.ddb5553 (aarch64, FEX). Test: ouvrir un jeu gourmand + spammer QAM/sliders -> plus de freeze, `chrt -p $(pgrep -f PluginLoader)` affiche RR 10. Co-Authored-By: Claude <noreply@anthropic.com>
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Corrige le freeze aléatoire du menu de droite (QAM) observé sur
20260819.ddb5553(aarch64/FEX) quand un jeu sature les cores.Causes
PluginLoaderaffamé par CFS — le binaire Decky (FEX x86) tournait enSCHED_OTHER nice 0, donc le thread CEF/Decky n'était plus ordonnancé sous charge. Drop-in systemd10-qam-freeze-fix.conf(SCHED_RR 10 + Nice -5 + IOScheduling best-effort) isole Decky de la contention jeu. Le jeu reste piloté pararmada-powerd/armada_perf.armada-controlbloque sa boucleselectorsurarmada-power reload(D-Bus, 1–3 s) à chaquewrite_config(power)— plus aucunwrite_config/game_launchedn'est traité et lescall()Decky timeout. Passage en fire-and-forget (threading.Threaddaemon).Le fix
DropdownItemInternal → Field+Dropdown(#272,ddb5553) était déjà présent àa09ebab.Test
Jeu gourmand + spam QAM/sliders → plus de freeze.
chrt -p $(pgrep -f PluginLoader)afficheRR 10après reboot.Console testée
armada@192.168.1.15, imagetesting20260819.ddb5553, live-patch non applicable sans rebuild (Bootc RO,bootc usr-overlayrequiert root interactif). Le fix nécessite l'image CI buildée par cette PR.Closes: freeze QAM (menu deroulant de droite).