media-player-server/RELEASE_NOTES.md

v0.2.4 (2026-05-15)

Features

• Displays — DDC/CI picture controls: Monitor cards now expose contrast (slider, same editorial copper treatment as brightness) plus a new "PICTURE TUNING" section with input source, color preset, and picture mode pickers built on the IconSelect widget — HDMI/DisplayPort/DVI/VGA/USB-C glyphs for inputs, thermometer for color temperatures, per-mode icons (movie reel, gamepad, ball, etc.) for picture modes. Backend probes DDC/CI capabilities per monitor at enumeration time and exposes *_supported flags so the UI hides rows the hardware doesn't advertise. New endpoints: POST /api/display/{contrast,input_source,color_preset,picture_mode}/{id}. Picture mode uses raw VCP 0xDC with MCCS-spec labels and vendor-friendly fallbacks. 14 new i18n keys per locale (en/ru). (57fdeb7)

Bug Fixes

• Displays — verify DDC/CI writes before reporting success: DDC/CI writes are fire-and-forget at the protocol level — a successful send does not mean the monitor honored the value. A new _verify_after_set helper polls readback after every write and reports {success: false} when the monitor silently dropped it (common on LG ultrawides for VCP codes whose registers exist but whose feature isn't really implemented in firmware). Wired into set_contrast, set_input_source, set_color_preset, set_picture_mode; input source uses a longer settle window since switching can briefly disrupt the DDC/CI link. Picture mode (VCP 0xDC) additionally requires the capability string to declare supported codes under cmds[0xDC] — without that declaration we treat the feature as unsupported even when reads succeed (the LG case where reads return a stuck value and every write is silently ignored). (d1f621f)

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Development / Internal

Chores

• restart-server.ps1 — installer vs dev launches: Previously only killed processes named media-server, silently missing the installer-bundled process (which runs as plain python.exe via media-server.bat). The script now kills whatever currently owns the listen port regardless of process name, adds -Mode auto|dev|installer with auto-detection based on whether the installer launcher exists in %LOCALAPPDATA%\Media Server, verifies the port is listening after start, and merges registry PATH so newly-installed dev tools are visible. (6120625)

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All Commits

Hash	Message	Author
57fdeb7	feat(displays): expose DDC/CI contrast, input source, color preset, picture mode	alexei.dolgolyov
6120625	chore(scripts): harden restart-server.ps1 against installer vs dev launches	alexei.dolgolyov
d1f621f	fix(displays): verify DDC/CI writes and trust capability string for picture mode	alexei.dolgolyov