Comment 152 for bug 971061

> If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

I downloaded trusty-desktop-amd64.iso from that link, and tested with my Series 5 NP530U3C, and the issue still persist in the latest ubuntu. So, latest ubuntu is the same.

Here is what I did:
     1) Downloaded ISO image
     2) Put it in a 2GB pendrive using 'unetbootin' to transfer it there.
     3) Booted up, selected "Try ubuntu without installing".
     4) Started acpi_listen, I see that plugging and unplugging are recognized as events.
     5) Suspended the laptop by closing the lid.
     6) Unplugged, plugged, unplugged..... (8 actions or more) while suspended.
     7) Resumed from sleep.
     8) ----> Now events are NOT produced anymore and the laptop got into "problem state". <----
          Closing the lid doesn't suspend the laptop. The battery icon says charging even though the ultrabook is unplugged from the wall.

No surprise there. Still UNFIXED in latest ubuntu (the ISO file has a date of 2014-02-22 in that download site).

Another way to get the laptop into "problem state" would be to let it discharge or charge by 16% while suspended in S3 sleep.

Christopher:
Should I file a new bug report?
--
Juan Manuel Cabo