Replaces the Windows port with a Raspberry Pi / Linux implementation on
Raspberry Pi OS "Trixie" (Debian 13, aarch64, Wayland/labwc). The Windows
code is removed here but preserved on the Windows-Player branch.
Entry point
-----------
linux/run_linux.py replaces windows/run_win.py. src/main.py stays
platform-neutral; all Pi-specific behaviour is injected from linux/.
Five bugs that prevented the port (all measured on real hardware)
----------------------------------------------------------------
1. Kivy's PyPI wheel bundles an SDL2 built WITHOUT the wayland driver, so
no window could be created (Trixie has no X server). linux/fix_kivy_sdl2.sh
symlinks the system SDL2 over the bundled filename.
2. SDL2 requires WAYLAND_DISPLAY to be *set* - the socket alone is not enough,
unlike wlopm. This broke every systemd/cron/autostart launch.
linux_display.ensure_session_environment() detects and exports it.
3. Kivy's Clock resolves callbacks via func.__name__; a patch assigned under a
different name crashed the player ~20s after a successful start.
4. The inherited signal_screen_activity() shelled out to tvservice, xdotool and
ydotool - none exist on Trixie - and mis-escaped 'wlopm --on \*', so the
display blanked after 10 minutes.
5. The launchers ran src/main.py directly, bypassing every platform patch and
resolving the data directory one level too high.
Web links
---------
- --ozone-platform-hint=auto does NOT fall back to Wayland on Chromium 152; it
aborts. The platform is now chosen explicitly.
- The keyring password prompt is suppressed via the ENVIRONMENT, not the flags:
launch_env() strips DBUS_SESSION_BUS_ADDRESS for the child so Chromium cannot
reach gnome-keyring-daemon.
- Teardown kills the whole process group (needs start_new_session=True);
previously it silently fell back to terminate() and orphaned children.
Video normalisation
-------------------
A 4K video cannot play on a Pi 4: ffpyplayer decodes in software, measured at
0.90x realtime (1080p is 3.03x). Oversized media is downscaled to 1920x1080 at
sync time using the hardware h264_v4l2m2m encoder (~31s for an 18s clip),
triggered by resolution only so already-playable files are untouched.
src/media_state.py owns the shared on-disk contract: a .kiwy-converting marker
makes the player skip the item while it is being rebuilt, then the converted
file is played instead. If nothing is playable at all (a single-item playlist
whose only video is converting), the player loops the intro video rather than
leaving a blank screen.
Also fixed
----------
- network_monitor: replaced netsh/ifconfig/dhclient with nmcli (Trixie uses
NetworkManager; ifconfig and dhclient are not even installed).
- Removed the Windows-only focus keeper/guardian from main.py.
- main.py: duplicate SDL_AUDIODRIVER setdefault (a silent no-op); Settings
"Test connection" now uses tempfile.gettempdir().
- config/app_config.json: credentials blanked so a fresh clone runs the
first-run setup flow.
Verification
------------
linux/test_media_state.py 18/18, test_linux_patches.py 21/21,
test_linux_browser_flags.py 27/27. Verified live against a real DigiServer:
image -> weblink -> image -> video with correct durations, zero leaked Chromium
processes, and no throttling over a 10 minute monitored run.
- windows/win_card_reader.py: Windows-native card reader via the Raw Input API
with a low-level keyboard-hook fallback.
- windows/sign_exe.ps1: sign the built executable with a .pfx certificate.
- windows/create_self_signed_cert.ps1: generate a self-signed cert for local
testing (not trusted by Smart App Control).
- windows/verify_sendinput_fix.py: verification helper for the SendInput
foreground-unlock fix in run_win.py.
- documentation/CODE_SIGNING_SMART_APP_CONTROL.md: signing guidance.
- working_files/execute_playlist_retrieve.py,
working_files/raw_server_playlist.json: playlist retrieval diagnostics.
Note: windows/archive_list.txt and windows/build_last.txt are build output and
were committed by request rather than by convention.
- Enhanced install.sh with comprehensive autostart workflow:
* XDG autostart entry (desktop environment)
* systemd user service (most reliable)
* LXDE autostart support (Raspberry Pi OS)
* Cron fallback (@reboot)
* Terminal mode enabled for debugging
- Added Raspberry Pi power management features:
* Disable HDMI screen blanking
* Prevent CPU power saving (performance mode)
* Disable system sleep/suspend
* X11 screensaver disabled
* Display power management (DPMS) disabled
- Fixed sudo compatibility:
* Properly detects actual user when run with sudo
* Correct file ownership for user configs
* systemctl --user works correctly
- Player launches in terminal for error visibility
- Autostart configured to use start.sh (watchdog with auto-restart)
ske087
Kiwy Player