/proc/acpi problem 2.6.23

[potat0]

hello all

I have 2 elderly-ish laptops:
a Dell inspiron 2100 and a toshiba satellite 3000-x11.

Both have been running fedora since core5 perfectly happily.
The Dell is now on Fedora 8 and the Toshiba is on Fedora 7.

Ever since the update to 2.6.23 neither has recognised its battery being present. When i
remove the ac on the Dell it still thinks it is on ac, when i remove the ac on the Toshiba
it shuts down. The other problem is that fan control for the Dell has failed allowing it
to overheat and shutdown if doing anything requiring lots of cpu activity.

In /proc/acpi/battery for both there is no entry for BAT0 and BAT1 is reported as not
present.

I note that "power_supply" and "battery" modules are not loading but
modprobeing these makes no difference.

Could somebody enlighten me as to what might be causing this?

thanks in advance


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[potat0]

Hi Ron
When i replaced the motherboard of my L400 it became a Inspiron 2100! so same board with a
different DMI string.

The same thing also happened with a toshiba laptop with a different chipset so i don't
think the bug is specific to this make/model.

Things i tried without success
1)modprobing battery and power_supply made no difference
2)rebuilding 2.6.23 kernel with a custom dsdt made no difference
3)rebuilding 2.6.23 with the ACPI modules built in made no difference
4)rebuilding the 2.6.23 kernel with deprecated /proc/acpi/ made no difference

Just the act of rebuilding a kernel is enough for the laptop to overheat, even sitting on
top of a fan belonging to another box!

Ended up upgrading a nice, big, fast dell server to fc8 and compiling the 2.6.24 kernel
from rawhide on it (--target=i686) and changing all the 64bit=y &c then installing it
on the lappie which made it all better.

Never had to compile a kernel before, necessity being the mother of invention and that.

I have updated the bugzilla report severity to high.

/me hoping that the released version of 2.6.24 doesn't break things again

mike


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[Ron Yorston]

mike simpson (mikieboy) <no-reply-gw(a)fcp.surfsite.org&gt; wrote:
> done
> bugzilla id no.407751 
Thanks for raising the bug report, Mike.

I had what appears to be the same problem with a fresh installation of
FC8 on a Dell Latitude L400 yesterday.  The battery and thermal_zone
directories in /proc/acpi exist but don't contain any useful
information:  they claim that there is no battery and that the CPU
temperature is always 50C.

During the big post-install 'yum update' the system shut down
unexpectedly, possibly due to overheating.  I'd say this was reason
enough to increase the severity of the bug.

Ron

[potat0]

Hi there

done
bugzilla id no.407751

mike


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[Jonathan Underwood]

On 01/12/2007, mike simpson (mikieboy) <no-reply-gw(a)fcp.surfsite.org&gt; wrote:
>  Hi all
>  just to state that building a 2.6.24-0.57.rc3.git4.local.fc8 kernel from the rawhide
> source rpm has cured the problem. The battery has been recognised and /proc/acpi/ has been
> populated with all the required information to allow thermal monitoring.
>  Hope this is of use to anyone else with the same problem.
>
>  mike 
It would be a real help if you filed a bug (at
http://bugzilla.redhat.com) against the kernel packages that you saw
the problem with originally including details of your hardware (lspci
-vv) etc.

[potat0]

Hi all
just to state that building a 2.6.24-0.57.rc3.git4.local.fc8 kernel from the rawhide
source rpm has cured the problem. The battery has been recognised and /proc/acpi/ has been
populated with all the required information to allow thermal monitoring.
Hope this is of use to anyone else with the same problem.

mike


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