battery time gets shorter and shorter in just 3 days
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| linux-source-2.6.17 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Bug Description
Problem: every battery recharge cycle managed by gnome and/or pbbuttons ends up shortening the battery total charge, by a considerable amount. After 2 days and 6 charges, the battery claims to last, when full, for only 55 minutes.
So I rebooted into macosx, let the battery exhaust itself all the way (by not using any application other than the finder, and dimming the screen to one point above black), and then fully recharged the battery. Then I rebooted to ubuntu edgy, and the battery claimed it would last 2 hours and 51 minutes, which is a 3-fold improvement over what gnome could do on its own.
I don't know which package is responsible. I know that macosx does a much better job (but then, Apple designed it specifically for the hardware). All I'm asking is whether some attention could be put into enhancing the battery recharge cycle in general.
On the same note, an ubuntu distribution tailored for laptops would be great, sporting special care in two main problematic areas:
- pluging external monitors/projectors for slide shows
- battery life (i.e. keep daemons such as the resource-hungry cupsd as idle as possible)
| Christer Edwards (christer.edwards) wrote | #1 |
| Matthew Woerly (nattgew) wrote | #2 |
| Albert Cardona (cardona) wrote | #3 |
| Matthew Woerly (nattgew) wrote | #4 |
| Changed in linux-source-2.6.17: | |
| status: | New → Invalid |
I recently applied available updates via the Mac OSX partiton on my machine and my battery life in Ubuntu is nearly half-hour longer. I have not directly compared battery times but in Ubuntu my battery lasts nearly three hours pretty consistently.
I am using the 2.6.20-16-generic kernel (Feisty) with the latest firmware updates available via Software Update in OSX also applied.