The kiosk window was sized in physical pixels, but Chromium interprets
--window-size in DIPs: with any device-scale > 1 the window painted
scale-times larger than the panel, and with no window manager in the
kiosk X session --kiosk/--start-fullscreen could not snap it back. On a
4K TV at scale 3 that meant an 11520x6480 window — 9x the panel area —
which blew the compositor tile-memory budget ("tile memory limits
exceeded, some content may not draw") and froze the screen on the last
painted frame; smaller scales cropped content off the right/bottom.
- Size the window in DIPs (panel / scale) so DIPs x scale = the panel.
- Panels >=2560 wide now target a 1920-wide layout (4K -> scale 2.0,
validated on the Framework's 72" 4K TV: spacious desktop layout at 2x
sharpness); smaller panels keep the 1280 target (1080p TV -> 1.5).
- Optional ARCHIPELAGO_KIOSK_MAX_WIDTH cap: drop to the best <=N-wide
xrandr mode for weak hardware (TV upscales instead of us rasterizing).
- Source /etc/archipelago/kiosk-display.conf so the upcoming Settings
display-resolution picker can manage these knobs per node.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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