With High Performance chosen on a hybrid laptop, the window's first
frame never reached the screen: no error, no panic, the app stayed in
the background without a window and the log stopped after "rendering
with". The start-up recovery of #502 only saw failures.
A watch thread now gives the first frame 20 seconds from the app's
creation (after the files named at the start opened). When the second
frame hasn't begun by then, so the first was never presented, the app
starts again without that adapter, as it does after a graphics failure,
and this process ends. A window minimized at the start isn't counted.
When the hung processor was chosen in Preferences, the status bar's
note after the restart points to Automatic.
docs/development.md explains it and how to recover from a Graphics
Processor choice that doesn't work; ROADMAP Last updated.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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