Keyboard and mouse stop working shortly after suspend

silverhammermba · 2019-08-31 14:21:26

When I suspend to RAM, the keyboard and mouse stop working afterwards. There are two weird situations:

If I hit a keyboard/mouse button a few seconds after suspending it stops suspending and wakes up. But they both no longer work after waking: I have to unplug them and plug them back in.
If I suspend and wait a bit, I can no longer wake the system at all. Pressing the keyboard/mouse/power button all have no effect.

I'm not using any DE or power manager, just running `systemctl suspend` from a terminal in awesome WM. This is a desktop, not a laptop. I'm running linux 5.2.11.arch1-1

Last edited by silverhammermba (2019-08-31 14:22:09)

seth · 2019-08-31 15:07:47

Does the power button retain long-time functionality if you unplug keyboard and mouse before suspending? (inb4: by prepending a "sleep 10" ;-)
Do you have other stuff on the USB (the more exotic, the more prone. Eg. my DVB adapter messes the bus on S3, unplugging it before results in a completely reliable S3)

silverhammermba · 2019-08-31 15:53:01

I'll try unplugging before suspending.

I don't think I have anything "exotic": wired mouse, wired keyboard (with a USB hub), wired xbox controller, mic, webcam

silverhammermba · 2019-08-31 18:33:27

Yeah, unplugging the mouse and keyboard before suspending made the power button work for resuming again.

I have no idea why that works. What's the fix?

seth · 2019-08-31 19:07:43

Try removing the other devices on the bus first to see whether one of them is the actual culprit. If not, isolate which one of the two causes this. Try a replacement device and if that doesn't expose the behavior, vendor of model of the troublemaker would probably be useful info.

I assume what happens is that something™ sends the USB stack into a lock or loop and the kernel won't process further events on the bus - or any input.
If you can cause the problem and still resume the system w/ rtcwake, dmesg might have some hints on what was going on.

silverhammermba · 2019-08-31 22:04:03

Well now I can't get it to reproduce the behavior. Keyboard, mouse, and power button all seem to be able to wake it up. :\

Arch Linux

#1 2019-08-31 14:21:26

Keyboard and mouse stop working shortly after suspend

#2 2019-08-31 15:07:47

Re: Keyboard and mouse stop working shortly after suspend

#3 2019-08-31 15:53:01

Re: Keyboard and mouse stop working shortly after suspend

#4 2019-08-31 18:33:27

Re: Keyboard and mouse stop working shortly after suspend

#5 2019-08-31 19:07:43

Re: Keyboard and mouse stop working shortly after suspend

#6 2019-08-31 22:04:03

Re: Keyboard and mouse stop working shortly after suspend

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