Bug 14740

Summary: battery status info dissapears in 2.6.32 - MSI PR200
Product: ACPI Reporter: Leonid Podolny (leonidp.lists)
Component: ECAssignee: Alexey Starikovskiy (astarikovskiy)
Severity: normal CC: acpi-bugzilla, eddy.petrisor+linbug, kernel, lenb, rjw, rui.zhang
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.32 Subsystem:
Regression: Yes Bisected commit-id:
Bug Depends on:    
Bug Blocks: 14230    
Attachments: dmsg
.config for my kernel

Description Leonid Podolny 2009-12-05 14:16:32 UTC
+++ This bug was initially created as a clone of Bug #12187 +++

Latest working kernel version:2.6.31
Earliest failing kernel version:2.6.32
Distribution: Gentoo
Hardware Environment: MSI PR200
Software Environment:
Problem Description:

Some time after booting the laptop the system stops seeing the battery charge state.
The problem also appeared in kernels prior to 2.6.31, but it appeared so rarely (days after booting) that I can't really say what was the last kernel when it worked OK. In 2.6.32 it is wrong right after boot.

For example, with fully charged battery and power cable connected:

leonid@looptop ~ % cat /proc/acpi/battery/BAT1/state
present:                 yes
capacity state:          ok
charging state:          charged
present rate:            unknown
remaining capacity:      unknown
present voltage:         10000 mV
leonid@looptop ~ % cat /sys/class/power_supply/BAT1/charge_now
Comment 1 Leonid Podolny 2009-12-05 14:17:47 UTC
Created attachment 24033 [details]
Comment 2 Leonid Podolny 2009-12-05 14:18:40 UTC
Created attachment 24035 [details]
.config for my kernel
Comment 3 Zhang Rui 2009-12-30 08:20:01 UTC
please attach the acpidump output.
Comment 4 Leonid Podolny 2009-12-30 11:35:45 UTC
This bug is actually a duplicate of B14446 -- it started working after I applied a patch from there.

*** This bug has been marked as a duplicate of bug 14446 ***