[Bug 162859] [acpi] ACPI battery/acline monitoring partialy working (switching)

[Juris Kaminskis]

2015-01-04 15:17 GMT+02:00 Ian Smith <smithi at nimnet.asn.au>:
>
> On Sat, 3 Jan 2015 11:45:05 +0000, bugzilla-noreply at freebsd.org wrote:
>
> Please excuse this off-'zilla merely speculative response.  No time, but
> I've spent (wasted?) some time chasing a couple of these outside the PR.
>
>  > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=162859
>  >
>  > --- Comment #14 from juris <juris.kaminskis at gmail.com> ---
>  > Problem on /head/ branch is introduced with revision 216942.
>
> If true (in all cases) this is great news for those with a variety of HP
> laptops that have been experiencing partial - or in some cases complete
> after boot - failures in CMBAT monitoring since 9.0.  And a Macbook Pro.
>
> So, reverting rev 216942 fixes it for you?  On what FreeBSD version?

I have compiled head branch revision 216941 and battery status via acpiconf
works. When compiling from source revision 216942 acpiconf stops
responding. I also tried to remove r216942 and compiled from source release
9.3, but there battery status was not working. Apparently there are more
things than just one that breaks HP ACPI .
>
>
> If so, with scant comprehension of the code, questions that occur:
>
> a) did that revision fix some existing problem, the reverting of which
> might reestablish problem/s in other machines?  jkim?
>
> b) what is it in various HP ACPI implementations that don't seem to be a
> reported problem on other hardware, particularly concerning EC handling?
>
> c) if this was wrong (for HPs), what would be right?  (the hard one :)
>
> cheers, Ian

 On Sat, 3 Jan 2015 11:45:05 +0000, bugzilla-noreply at freebsd.org wrote:

Please excuse this off-'zilla merely speculative response.  No time, but
I've spent (wasted?) some time chasing a couple of these outside the PR.

 > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=162859
 >
 > --- Comment #14 from juris <juris.kaminskis at gmail.com> ---
 > Problem on /head/ branch is introduced with revision 216942.

If true (in all cases) this is great news for those with a variety of HP
laptops that have been experiencing partial - or in some cases complete
after boot - failures in CMBAT monitoring since 9.0.  And a Macbook Pro.

So, reverting rev 216942 fixes it for you?  On what FreeBSD version?

If so, with scant comprehension of the code, questions that occur:

a) did that revision fix some existing problem, the reverting of which
might reestablish problem/s in other machines?  jkim?

b) what is it in various HP ACPI implementations that don't seem to be a
reported problem on other hardware, particularly concerning EC handling?

c) if this was wrong (for HPs), what would be right?  (the hard one :)

cheers, Ian