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Recently I've been experiencing problems with my Logitech keyboard and mouse combo MK 250. Both devices are correctly paired with the USB receiver and I can work fine with them except when resuming from sleep state after several hours. Mouse works but the keyboard doesn't.
I've tried many things: switching both on and off, plugging the USB dongle into another port, swapping keyboard batteries and so on. Sometimes the problem just goes away and sometimes I have to reboot the computer. Even after doing that the issue may persist and I have to try again all those tricks to hopefully make it work so I can enter my boot password. Once the keyboard is paired again I can use it without problems.
This can be many things, I imagine. It can be a faulty unit or maybe latest changes in libinput. Honestly I don't have a clue and I need some help to troubleshoot this.
➜ % ~ lsusb
Bus 002 Device 005: ID 046d:c52e Logitech, Inc. MK260 Wireless Combo Receiver
Many thanks!
Last edited by Jason P. (2019-03-09 19:01:42)
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I've tested something that makes me think that this is a software problem. I've unplugged the USB receiver after going to sleep mode. Then, when I resumed the computer I've plugged it again and the keyboard worked normally.
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I'd like to give more info about this problem so it will be easier to find help and maybe solve it. I think usbmon tool could be useful. How can I manage to debug the usb traffic right after resuming from sleep mode?
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