T54W display remains black after power saving.

[complex1]

(08-26-2023 02:03 PM)mighty-tower Wrote:  Unfortunately, the settings did not solve the problem. The backlight turns on but the screen remains black.

I think this is due to the built-in screen saver.
If the phone is not used for a certain period of time, the screen saver kicks in... in this case at night.
The screen saver is only deactivated by an incoming call, BLF status change, or you press a key.