Hi,

a plain Ubuntu does not enable USB autosuspend for input devices. Maybe
you implemented something like 'powertop --autotune' in your rc.local?

I suggest you install tlp again (it's in the official repos now), start
it with

sudo tlp start

and attach the output of

tlp-stat -u

ps. upower is neither a replacement for TLP nor does it save battery
power.

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https://bugs.launchpad.net/bugs/1603659

Title:
  Power Management: USB mouse and keyboard laggy and loosing events

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