kern/173408: ACPI Regression: battery does not update often
demelier.david at gmail.com
Mon Nov 5 22:40:01 UTC 2012
>Synopsis: ACPI Regression: battery does not update often
>Arrival-Date: Mon Nov 05 22:40:00 UTC 2012
>Originator: David Demelier
FreeBSD Melon.malikania.fr 9.1-RC2 FreeBSD 9.1-RC2 #2: Wed Oct 10 18:36:52 CEST 2012 root at Melon.malikania.fr:/usr/obj/usr/src/sys/Melon amd64
The battery info shown in hw.acpi.battery sysctl nodes or info provided by acpiconf(8) does not update as often as FreeBSD 8.1.
If I run on battery, I must wait a while until the remaining capacity or remaining time change, I know that could be very great if real.. but that is very annoying now as I don't know when the percentage will decrease..
For instance, I started using my laptop, the charge was 89%, after 30 minutes of use (with processes that use a lot of cpu) 30 minutes passed the state is still to 89%.
This does not happend on 8.1 and not 9.0 both -RELEASE
Don't know, what I know is that HP laptop BIOSes usually send to the OS the current battery state each second (or something similar).
We noticed this with a NetBSD developer because the kernel was emitting a message about the battery something like each second.
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