Screen never wakes after BLEUnlock-triggered screen-off

[v487qx95ng-ai]

Device & System

• Device: Mac mini (Apple Silicon)
• macOS: 26.1(Tahoe)
• External monitor: LG 4K (USB-C → DP)

When I walk away with my iPhone / Apple Watch and BLEUnlock locks the Mac, I tested two different post-lock behaviors:

1. If BLEUnlock is set to activate a screensaver → the display wakes normally.
2. If BLEUnlock is set to turn the display off (screen-off) → the display NEVER wakes.

The second case is 100% reproducible.

This is not macOS idle sleep.
It only happens when BLEUnlock performs the lock → screen-off sequence triggered by distance.

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Steps to reproduce

1. In BLEUnlock, configure “lock when leaving” → screen-off (not screensaver).
2. Use the Mac normally.
3. Walk away with iPhone / Apple Watch.
4. BLEUnlock detects distance → locks the Mac → turns the display off.
5. Return to the Mac.
6. The external display stays off and never wakes.

Note: If the post-lock action is “screensaver”, waking works normally.

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Expected behavior

The display should wake normally after returning, just like it does when the screensaver is used.

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Actual behavior

The display remains completely off and cannot be woken.

[Asunfly]

I found the same problem. It seems that it is unstable after connecting to the device. When returning after disconnecting, it does not automatically connect to the device and cannot be unlocked.
我发现同样的问题，好像是关联设备后不稳定，断联后返回时，没有自动连接到设备导致无法解锁。

[jhsy0330]

It's possible you didn't enable 'Prevent sleep when display is off
可能是你没有打开关闭显示器后组织电脑自动睡眠

[Asunfly]

开着呢