Most recent kernel where this bug did *NOT* occur: 22.214.171.124
Distribution: self compiled
Hardware Environment: Intel Centrino Laptop
/proc/acpi/battery/BAT0 (my laptop battery) is no longer available
since i use 2.6.21 - the only change i made in kernel configuration
is that i enabled the tickless option. With all versions before (including 126.96.36.199) it
the relevant config options i use are:
# ACPI (Advanced Configuration and Power Interface) Support
# CONFIG_ACPI_SLEEP_PROC_SLEEP is not set
# CONFIG_ACPI_DOCK is not set
# CONFIG_ACPI_IBM is not set
# CONFIG_ACPI_TOSHIBA is not set
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_CONTAINER is not set
# CONFIG_ACPI_SBS is not set
# APM (Advanced Power Management) BIOS Support
# CONFIG_APM is not set
Steps to reproduce:
I now removed the suspend2 patch and use now a vanilla 2.6.21. The problem remains.
Some additional info:
/proc/acpi/battery/BAT1 is still available - but I do have my battery at BAT0 - so BAT1 just
states that there is no battery.
I get no error messages or whatsoever in /var/log/kern.log about acpi or anything else.
I will attach relevant kern.log part.
Created attachment 11507 [details]
kern.log part of 2.6.21 vanilla
set CONFIG_ACPI_DEBUG will help you get more ACPI debug messages. :)
>/proc/acpi/battery/BAT1 is still available - but I do have my battery at BAT0
Do you mean that only BAT1 can be seen under /proc/acpi/battery?
And /proc/acpi/battery/BAT1/state says that the BAT1 is not present?
Please attach the dmesg output after you set CONFIG_ACPI_DEBUG.
>Do you mean that only BAT1 can be seen under /proc/acpi/battery?
>And /proc/acpi/battery/BAT1/state says that the BAT1 is not present?
Yes that's correct.
>Please attach the dmesg output after you set CONFIG_ACPI_DEBUG.
Hmm recompiled with CONFIG_ACPI_DEBUG but I'm afraid my dmesg
output doesn't contain anything new... but will attach it.
Created attachment 11526 [details]
dmesg output with CONFIG_ACPI_DEBUG
I have some more debugging lines, but I have a precompiled kernel by ubuntu,
without the debug configuration:
[ 15.896079] ACPI Error (psparse-0537): Method parse/execution failed
[\_SB_.PCI0.SBRG.EC0_.BATS] (Node c147bf18), AE_NOT_EXIST
[ 15.896125] ACPI Error (psparse-0537): Method parse/execution failed
[\_SB_.BAT0._STA] (Node c14783c4), AE_NOT_EXIST
these lines are not present in a dmesg by 2.6.20 (which does not have this problem)
I've attached my DSDT in the bug #8493 which I think is a dup of this
Could you please attach the acpidump output please?:)
Created attachment 11596 [details]
Created attachment 11597 [details]
I have the same problem with my asus notebook: M6842NELH, bios 0208A
Created attachment 11641 [details]
Please try the patch in comment#9 bug8598.
Thanks for the hint to this patch - I updated to 2.6.22-rc4 and applied the patch and my battery is here again! So for me this bug can be considered as fixed.
If it works I hope it is included soon by default!
*** This bug has been marked as a duplicate of bug 8598 ***