laptop hibernates when plugged in to ac power

[Michael Hudson-Doyle]

Binary package hint: gnome-power-manager

gnome-power-manager:
  Installed: 2.28.1-0ubuntu1

Karmic installed on a MacBook2,1.

This seems basically the same as bug 129006, but as that bug is really old and I'm only having the problem with karmic, I'm filing a new bug.

Basically, if I plug the laptop into power when the level is low, the machine hibernates. This is very annoying, as the usual reason I'm plugging it in is so that I can carry on working without it hibernating :-)

Until a recent update, the %age reported by gnome-power-manager was completely off, so it would sometimes hibernate when gnome-power-manager thought the charge was 4% but the charge was really 60%. But now it seems much more accurate, and it still happens.

[sreenath (tacticiankerala)]

The same affects my dell studio 15 with ubuntu 9.10
When batteryis low i plug into ac adapter at that moment it hibernates

[Frank Rudzicz (frudzicz)]

This happens to me, without fail, on my Lenovo Thinkpad T400 whenever I plug in the power after the power manager reports 'critically low' battery life (usually around 5%).

Either there is some similarity between the MacBook2,1, the Studio 15, and the Thinkpad T400 with regards to power management, or Karmic's power manager is fundamentally flawed.

[stu31 (stu24mail)]

Same thing, without fail. Even when not "critically low" (anything around 15% or less), the panel icon doesn't show a red battery on, I plug in, I get a splash/popup saying "battery is critically", hibernating.

This is on a Dell inspiron 1501 laptop.

Note that hibernate and suspend were finally working in 8.?? before I upgraded to karmic. Now hibernate and suspend don't work.

The obviously compounds the frustration, as when the computer hibernates, it won't wake back up. So every time I plug into A/C power at below ~15-20%, it hibernates, won't wake up from hibernate, and I have to do a hard reset (power button for 4 seconds), and then boot back up again....

Is power-management in karmic a known issue btw? It seems to have gotten much worse? Should I be reporting all these.. or would I just be filling up the bug list?

If you need more information, let me know! I might not get back too quickly, but I will get back. If I need to re-configure something for debugging, just point me to a wiki, and I'll get going.

Thanks for all the hard work so far..

Take care,
  -stu

[Pedro Villavicencio (pedro)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. A new version of GNOME Power Manager is available on Maverick and we are wondering if this bug is still an issue for you with that version? Could you please test and comment back? Thanks in advance.

[Michael Hudson-Doyle (mwhudson)]

I haven't seen this bug for several months now (not since Lucid, at any rate), so closing.

[max (maxozilla)]

I am re-opening this bug as I'm experiencing this problem - the laptop hibernates even though it's plugged into AC power.

Steps to reproduce:

1. Run laptop on low battery until it shows prompts that it will soon go into hibernation mode
2. Plug laptop into AC power

Result:
- Laptop still hibernates even though it's on AC power

Expected result:
- Gnome Power Manager should detect that the laptop is now on AC power and cancel scheduled hibernation

I'm using Ubuntu 10.10 Maverick

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.