Can BetterDisplay reinitialize a display automatically after sleep?

Yes. On a supported Apple-silicon external-display connection, enable Reinitialize this display on wake under Settings > Displays > [display] > Additional Settings…. Use Reinitialize this display on unlock if unlocking is the event that needs recovery. Both options are off by default.

This is worth testing when Manage Display > Reinitialize Display already restores the picture manually after wake. Reinitialization rebuilds the connection through its EDID configuration and can briefly interrupt the image. If automatic custom EDID application is enabled and available, BetterDisplay first tries that override. It falls back to factory EDID if the custom override is unavailable or cannot be applied.

The operation needs an external display with an accessible framebuffer connection. It cannot reinitialize a built-in display or reconnect a BetterDisplay virtual screen, even if a related setting is visible.

Test several sleep/wake cycles with the displays and adapters you normally use. Reinitialization may recover a misbehaving connection without fixing its underlying cause. If it introduces interruptions without helping, turn the automatic option off.

A VMM7100 adapter reset is a separate option that affects all detected VMM7100 adapters. It is not required merely to enable display reinitialization. See Reinitialize Display and VMM7100 wake resets for that distinction.