Lenovo T530 - Battery Warnings (fwd)

[Ian Smith]

Sorry, thought I was replying to the list too.  Maybe this could be 
relevant to others who'll likely have the same issues, hope that's ok.

---------- Forwarded message ----------
Date: Sun, 16 Jun 2013 01:55:14 +1000 (EST)
From: Ian Smith <smithi at nimnet.asn.au>
To: Joseph Mingrone <jrm at ftfl.ca>
Subject: Re: Lenovo T530 - Battery Warnings

On Sat, 15 Jun 2013 12:03:14 -0300, Joseph Mingrone wrote:
 > Ian Smith <smithi at nimnet.asn.au> writes:
 > 
 > > On Sat, 15 Jun 2013 11:10:52 -0300, Joseph Mingrone wrote:
 > >  > Ian Smith <smithi at nimnet.asn.au> writes:
 > >  > > if '# kldload speaker && spkrtest' makes useful noises on the
 > >  > > speaker...
 > >  > 
 > >  > Maybe this is the source of the problem.  After loading speaker.ko and
 > >  > running spkrtest I didn't hear anything.  I verified in mixer that the
 > >  > speaker was at 100:100.
 > >
 > > Ok, so the speaker is muted.  The 'normal' IBM/Lenovo sound up/down/mute 
 > > buttons don't do anything?
 > 
 > The mute button does work.  The volume up/down buttons work in X only after I put
 > the following in ~/.xbinkeyssrc:
 > 
 > "/usr/sbin/mixer vol -5  pcm -5"
 >   XF86AudioLowerVolume
 > "/usr/sbin/mixer vol +5  pcm +5"
 >   XF86AudioRaiseVolume
 > 
 > The microphone mute button isn't recognized by xev.
 > 
 > > If so that's possibly an ACPI / BIOS issue I 
 > > know nothing about.  It is running acpi_ibm.ko I suppose?  If so, what 
 > > does 'sysctl dev.acpi_ibm' have to say?
 > 
 > The acpi_ibm kernel module is loaded, it shows up in kldstat, but no message is
 > given in /var/run/dmesg.boot and nothing relevant appears in sysctl.

Right; there's been quite a lot about this issue in freebsd-acpi for the 
last year and more, and various Lenovo *530 have come up (Y530 & E530).

The bottom line seems to be that you need to patch acpi_ibm, or run 
stable/9 to pick up the patched version.  I suggest browsing the acpi@ 
archives esp. for thread: "what is required to support a new laptop?" 
which highlights some differences between [45]20 and 530 series; I'm not 
sure anything I can find on a T500 is likely to help, but I'll see.

A lot of the above is folks trying to get brightness controls working, 
but maybe if you get acpi_ibm loaded and functional it may help this?

cheers (and out for now, Ian