g-p-m is reporting 2 separate voltage/power levels

I can confirm this issue. It appears the applet's hover status hangs. Mine is currently stuck at 82.5% with 3 hours 15 min remaining. When I left-click the icon, I see that I have 61% free.

I can also confirm this issue.

See also a few details I gave earlier in https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/273945

There is potential for data loss (and otherwise extreme inconvenience) here.

Not sure whether this is related to the bug or just a bad luck, but first (and last) time I used my battery a long time with Ubuntu Intrepid Ibex, my battery capacity went from 82% to only 65% (of the original capacity)... :-(

Hi,

Running g-p-m in debug mode for a bit showed that it is tracking the battery
level ok, and the left-click menu gets it right. It seems to be the icon and
tooltip that stop updating after a couple of minutes.

Thanks,

James

I gave a false alarm on a duplicate report, because I said that action on critical battery is not performed after suspend. That was due on "use time for policy" being set and the time being a bit wrong. Using percentages or raising the thresholds a little bit makes the laptop react to battery critical events, so the problem is only with the battery indicator. William: you may want to revise priority. I also reported upstream - launchpad is not reporting upstream links for duplicates it seems, I will add it by hand.

This issue is caused by patch 19_fix_notification_messages.patch
According to gnome svn, the patch should be made in gpm_cell_array_get_time_until_action. However, "debian/rules patch" applies it in gpm_cell_array_update. Apparently, because upstream already made the change in gpm_cell_array_get_time_until_action, patch gets confused and applies the patch 90 lines later in gpm-cell-array.c:

gnome-power-manager-2.24.0$ patch -p1 < ../19_fix_notification_messages.patch
patching file src/gpm-cell-array.c
Hunk #1 succeeded at 270 with fuzz 2 (offset 90 lines).

I have rebuilt gpm 2.24.0 without this patch, and can confirm this fixes both issues:
- charge percentages shown in mouse-over and left-click are now equal
- battery voltage in power history is now constant, as expected (bug 275845)

Can you please attach a deb file? I will try the patch on my laptop and post the results.

Created a package gnome-power-manager_2.24.0-0ubuntu3 that removes this patch. It should have been dropped earlier. It's in my PPA:

http://launchpad.net/~ted-gould/+archive

Effective Deb diff:

http://bazaar.launchpad.net/~ted-gould/gnome-power/ubuntu-packaging-2.23/revision/88

Ted: I installed the package from your ppa and yes, the time goes down in the applet. However, there is something unbelievably different between the tooltip and the left-click. There is a drift between the two reported times - at least, after suspend.

On Mon, 2008-09-29 at 20:03 +0000, Vincenzo Ciancia wrote:
> Ted: I installed the package from your ppa and yes, the time goes down
> in the applet. However, there is something unbelievably different
> between the tooltip and the left-click. There is a drift between the two
> reported times - at least, after suspend.
>

Hi Vicenzo,

I noticed this while testing as well. I delved in to the code to
investigate.

What is happening is that the left-click menu is showing the percentage
reported by the battery via hal. The tooltip is showing a value that is
averaged, somehow based on the past performance of the battery. The two
values converged for me after a few minutes.

I agree that it's confusing, but it seems to be intentional behaviour,
and not critical for the release. Discussing the issue with upstream
is probably a better way to deal with this.

Thanks,

James

Hmm, agreed. Perhaps this has always been the case and I never noticed that.

I confirm that the latest upload (2.24.0-0ubuntu3) resolves this issue on four different laptop (manufacturers/) models. (Hooray- I can finally remove my xmonad keybinding to restart g-p-m!)

This has been fixed, but didn't get closed automatically because the changelog syntax was incorrect. (For future reference - either by Ted or his sponsor - you need to use LP: #nnn rather than LP #nnn.)

gnome-power-manager (2.24.0-0ubuntu3) intrepid; urgency=low

  * Removed 19_fix_critical_message.patch which was applied upstream
    but was still getting applied in other areas of gpm-cell-array.c.
    (LP #274681)

 -- Ted Gould <email address hidden> Mon, 29 Sep 2008 13:26:44 -0500