https://bugzilla.kernel.org/show_bug.cgi?id=33672
--- Comment #18 from Andres Cimmarusti <acimmaru...@gmail.com> 2011-07-07 15:05:23 --- Created an attachment (id=64882) --> (https://bugzilla.kernel.org/attachment.cgi?id=64882) acpidump log (In reply to comment #17) > From the dmesg, the battery present rate which is returned from the DSDT in > the > Bios is always zero. This is caused by the hardware or bios. > > Please attach the output of acpidump. I've just attached the acpidump. Now, if it is caused by hardware or bios, are you saying this can't be fixed in the kernel? > > I have tested many kernels (logs attached): > > gnome power manager estimates time remaining on battery correctly for > > kernels > > 2.6.27 and 2.6.28, but starts to fail with 2.6.29. > It is very strange that gpm can estimates remaining time with the preset rate > zero. > remaining time = remaining capacity / present rate; Yeah, I understand your reservations, but it does work. In fact I've finally found a couple of leads as to why it stopped working for me (and many others whose batteries don't report rates): https://bugs.freedesktop.org/show_bug.cgi?id=24329 It appears that when the major linux distros switched from hal to udev/upower, there was some functionality lost. The fix has apparently been released for upower now: http://cgit.freedesktop.org/upower/commit/?id=2d8358ae4eea4ecaa103891e660a5cdd4c166f5b Broadly, it is just a question of sampling the battery state for a couple of minutes and estimating a rate from there. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
