Re: Re: No battery information - Compaq Evo N800v, 2.4.20pre8, acpi 20021002

[Troy Schultz <tschultz-zzOxFVvAfJPQT0dZR+AlfA@public.gmane.org>]

You may find that you need to power-up the notebook with the AC
unplugged.  There seems to be a problem on many of the Compaq systems
where the thermal and battery zones do not properly initialize if AC
power is applied at power-up.

My Compaq Presario 2710CA has this problem, and if I power-up with no AC
to after the BIOS has initialized (Boot loader appears) then all is OK
with both the battery and thermal zones.  The later BIOS updates from
Compaq have still not resolved this issue.

- Troy

On Wed, 2002-10-09 at 14:25, Kevin Schmidt wrote:
> I have a Compaq evo n1000v which is very similar (the dsdt says n800).
> I am running 2.4.19+xfs+acpi-20020918 with a patched dsdt.
> The dsdt changes were:
> 1. Deleted the leading from variables flagged by errors as suggested
> in other messages to this list.
> 2. Added External definitions for variables not found
> and commented out the Alias line that caused a compiler error. This
> allowed the dsdt to compile with some warnings about missing return
> types. I tried adding zero returns to those, and the warnings went away
> but I could not detect any change in the way the machine ran.
> 
> After the dsdt changes, the ac_adapter was detected properly and it detects
> when it is plugged in or removed. The lid switch and the
> power button give events and I see /proc/battery, but the battery is
> not detected. There are still a couple of errors in dmesg from the
> dsdt.
> 
> I know next to nothing about what this really does, so use this at
> your own risk. It does appear that the problems are dsdt related.
> 
> Kevin Schmidt
> 
> > From: Mark Pritchard <mark.pritchard-acpi-3o+aUUpM7Xj0CCvOHzKKcA@public.gmane.org>
> > To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> > Date: Tue, 8 Oct 2002 11:15:21 +1000
> > Subject: [ACPI] No battery information - Compaq Evo N800v, 2.4.20pre8, acpi 20021002
> > 
> > Hi,
> > 
> > I'm having a problem with seeing battery status on my Compaq Evo N800v. T=
> > he=20
> > proc filesystem has plenty of entries for everything other than the batte=
> > ry=20
> > (I've included a list below).=20
> > 
> > I'd really appreciate some advice, and I'm more than happy to provide mor=
> > e=20
> > info/test things.
> > 
> > Cheers
> > 
> > Mark Pritchard
> =-------------------------------------------------------------
> Kevin Schmidt, w9cf-iy676YoZKZKAgX/H7s3LlTe48wsgrGvP@public.gmane.org, http://fermi.la.asu.edu/w9cf
> Department of Physics and Astronomy
> Arizona State University, Tempe, AZ 85287-1504
> (480) 965-8240 Fax: (480) 965-7954
> 
> 
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