The Riot Client UI intermittently stayed black for 30s to 2+ minutes
(sometimes indefinitely). Electron 22 / Chrome 108 verifies the local
Riot backend's TLS certificate through SecTrust, which calls trustd over
XPC. trustd is launched on demand and has EnablePressuredExit, so it is
often not running; under Darling the on-demand launch can take minutes,
and every cert verification (serialized behind Chrome's global lock)
waits for it. The UI's websocket handshake stalls after ServerHello
until then.
Start trustd at boot and keep it alive. Measured on one machine:
before, time to "renderer socket connected to Foundation" ranged
0.8s-136s or never; after, 0.83s / 0.85s / 0.97s on three launches.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_014cgmCWUB2zNH4uiMEioafC
