Display Fails to Power Off on T-Display S3 Board

[melkati]

Issue Overview:
The ESP32 S3 boards exhibit a persistent issue where the display fails to power off as expected (as when the device is powered by battery and remains inactive for a period or when the user explicitly sets preferences to power off the display).

Issue Details:

• Display brightness to its lowest level, the display remains active and consumes power.
• This behavior persists even in scenarios where power conservation is crucial, such as when the device is running on battery power.

Proposed Solution:
To resolve this issue, we propose implementing a mechanism to ensure that the display powers off completely when inactive or when instructed by the user. Community member @Coscolin has suggested a solution involving setting the backlight pin to 0, which will be explored further.

Next Steps:

1. Investigate the root cause of the display power-off failure and determine the optimal solution.
2. Implement the proposed solution of setting the backlight pin to 0 or explore alternative approaches.
3. Thoroughly test the solution to ensure reliable display power-off behavior in various scenarios.
4. Submit a pull request with the proposed changes for review and integration into the main repository.

Contributions and insights from the community are highly encouraged to expedite the resolution of this critical issue. Thank you for your collaboration and support.