Suspend on Low Power

**thomasaaron** · October 13th, 2009

One final question: does it suspend and resume correctly if you manually suspend it?

I'm imaging a darter now for testing.

**Temposs** · October 13th, 2009

Suspend works perfectly when I manually initiate it, either by closing the lid or using the Fn+F4 shortcut or Ubuntu's session menu.

**thomasaaron** · October 14th, 2009

OK. I've got a Darter imaged. Letting the battery drain and will report back.

**thomasaaron** · October 14th, 2009

Alright, I have the same problem.

There is some sort of power management issue with the Darter, and this seems to be one of the side-effects of it.

There is a fix for it (I think), but it involves re-compiling the kernel, which is a bit beyond the scope of what we do. But, I've also heard that the fix should be applied in Karmic (although I know it's not fixed in Karmic YET).

Please bump this if the problem isn't fixed with the stable release of Karmic on 10/29. If it's not, we'll dig deeper.

**mcallenSchmee** · October 17th, 2009

When on suspend the computer still requires power. I think what you want it to do is Hibernate.

**Temposs** · October 17th, 2009

Originally Posted by mcallenSchmee

When on suspend the computer still requires power. I think what you want it to do is Hibernate.

Regardless, it should still be able to go into suspend when it gets to a low power level, and it doesn't.

**HotShotDJ** · October 18th, 2009

If you're having the same problem as I have with the PanP5, the issue is that the gnome power manager is not calculating the time remaining. This is actually a new bug in Karmic -- recompiling the kernel doesn't fix it like it did in Jaunty.

But, some good news for you... just change some settings using the configuration editor. Open a terminal and type:

Code:

gconf-editor

Find apps -> gnome-power-manager -> general

Now, uncheck "use_time_for_policy"

Next, find apps -> gnome-power-manager -> thresholds. I recommend setting "percentage_low" to 10%, "percentage_critical" to 6%, and "percentage_action" to 5%.

Now you can safely exit out of the configuration editor. Log out then log back in (you don't need a full reboot). If you have multiple users on your computer, you'll need to make the above adjustments in each account.

I hope this helps get you through until they get things sorted in Ubuntu-land.