Score:0

20.04 Wake On Lan stops working after first suspends with pm-suspend

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Recently, I started to use an old laptop as a home server.
Everything works perfectly, but WOL(Wake On LAN) does not work as expected.
This is my situation.

  1. I turn on my laptop
  2. I use SSH to connect remotely to it (from my main PC)
  3. I do some work
  4. I use pm-suspend to suspend my laptop
  5. Next, from my main PC, I use WOL to wake up my laptop
  6. The laptop turns back on.
  7. I suspend the laptop again remotely.
  8. When I use WOL again, the laptop does not wake up, I have to wake it up with the power button.

And after the first successfully wake up from hibernation, all the next ones do not work.
Also, I'm not using Ubuntu Server. Just Ubuntu Desktop 20.04.

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