The sleep mode feature from dev (PR #999) prevented video from auto-starting
when streaming_status == 0, which broke HDMI hotplug functionality.
Modified video_restart_streaming() to check detected_signal:
- No signal + not streaming -> don't start (preserve sleep mode)
- Has signal -> always stop cleanly then restart (fix hotplug)
This ensures proper encoder cleanup and prevents corrupted video output
after HDMI disconnect/reconnect cycles.
The continuous ensure_sleep_mode_disabled() call in the format detection
loop caused repeated I2C transactions to the TC358743, disrupting HDMI
audio capture. Sleep mode is already disabled once during video_init(),
which is sufficient.
Alex P
Aveline
Adam Shiervani