Leyden Jar loses power when Computer sleeps

memm74

08 Jun 2025, 10:28

Hello, I have a new Model F122. When my computer (Lenovo, Windows 11) is put to sleep it seems to shut down power for the Leyden Jar controller (Num Lock LED turns off). I then cannot wake the PC with the keyboard. If I wake it using other means the F122 stays off, the only way to use it again is to unplug and to replug. I checked settings in the Device Manager and don't see any issues. Other keyboards don't have this issue.
Has anyone come across this and has advice for me?

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Falkenroth

08 Jun 2025, 17:25

My Unicomp Mini M was doing the same thing a few years ago but I thought that was corrected back then. What year is the board? My Mini M is a 2022. I had to send it back to Unicomp and have a controller replaced or software installed on the controller. Can't remember. Yea it's a annoying issue.

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fohat
Elder Messenger

08 Jun 2025, 18:00

I never use "sleep" but I think it is fair to assume that the adapter does not "wake up" until some moments after the motherboard "wakes up" and activates the USB ports.

memm74

08 Jun 2025, 21:18

Thanks. I am not sure what year the adapter is from but I just got it a few days ago.
The keyboard isn't coming back even after the motherboard is awake for a while. It doesn't also doesn't show up in Device Manager anymore (no surprise there).

memm74

Yesterday, 09:06

Joe from Model F Keyboards kindly provided a new firmware from Rico that fixed the issue✌️. It changed the suspend_wakeup_delay setting. Apparently this is the first case like this. My best guess is that it has to do with my Lenovo.

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