[Pm-utils] No battery info after suspend

[Don Harden]

Dan Nicholson wrote:
> On Thu, Feb 26, 2009 at 4:08 AM, Donald Harden <chedbh at langate.gsu.edu> wrote:
>   
>> Hello,
>>
>> I have the following:
>>  HP Pavilion dv7 laptop with an Intel Core2 Duo T9400 and 4 GB of RAM
>>   Fedora 10  2.6.27.15-170.2.24.fc10.x86_64
>>   pm-utils-1.2.2.1-2.fc10
>>   hal-0.5.12-14.20081027git.fc10
>>
>> Everything runs great including suspending, hibernating and resuming except that when the laptop resumes from a suspend or hibernation there is no battery info:
>>  {0}duder:/home/don > cat /proc/acpi/battery/BAT0/alarm
>>  present:                 no
>>  {0}duder:/home/don > cat /proc/acpi/battery/BAT0/info
>>  present:                 no
>>  {0}duder:/home/don > cat /proc/acpi/battery/BAT0/state
>>  present:                 no
>>
>> Before a suspend or hibernation  and resume the battery info is as expected:
>>  {0}duder:/home/don/bin > cat /proc/acpi/battery/BAT0/info
>>  present:                 yes
>>  design capacity:         5100 mAh
>>  last full capacity:      4800 mAh
>>  battery technology:      rechargeable
>>  design voltage:          14400 mV
>>  design capacity warning: 240 mAh
>>  design capacity low:     144 mAh
>>  capacity granularity 1:  264 mAh
>>  capacity granularity 2:  3780 mAh
>>  model number:            Primary
>>  serial number:
>>  battery type:            Lion
>>  OEM info:                Hewlett-Packard
>>
>>
>> It does not matter if the laptop is running on AC power or the battery
>>
>> Booting with every combination of turning acpid on or off and turning the pci=noapci  kernel flag on or off  has no effect.
>>
>> I spent a good deal of time Googling and searching the pm-utils archives but found no solution.
>>
>> I've also tried the suggestions on the HAL Quirk site, http://people.freedesktop.org/~hughsient/quirk/index.html  but still no joy.
>>
>> Any ideas to get my battery info after a resume?
>>     
>
> I just noticed this message. Don't know if you found an answer in the meantime.
>
> This is almost certainly a kernel bug. pm-utils can work around some
> things in userspace, but eventually it just tells the kernel to
> suspend and hope it resumes in a usable state.
>
> I would suggest trying a newer kernel version at least. Probably
> advisable to open a Fedora bug. If that doesn't get you anywhere, you
> can try the vanilla kernel.org kernels and contacting lkml.org,
> linux-acpi at kernel.org and/or kernel.org bugzilla.
>
> Also, you may want to look at dmesg to see if there's any messages
> from the acpi subsystem.
>
> --
> Dan
> _______________________________________________
> Pm-utils mailing list
> Pm-utils at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/pm-utils
>   
Hi Dan,  thanks for your response.  I should have mentioned earlier that 
dmseg gave nothing useful:
Before a suspend:
{0}duder:/home/don > dmesg |grep acpi
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x00] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x00] disabled)
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
acpi device:04: registered as cooling_device3
acpi device:09: registered as cooling_device4

After a resume:
{0}duder:/home/don > dmesg |grep acpi
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x00] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x00] disabled)
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
acpi device:04: registered as cooling_device3
acpi device:09: registered as cooling_device4

I am running the latest Fedora  x86-64 kernel,  
2.6.26.6-79.fc9.x86_64.   I haven't tried a vanilla kernel; maybe I 
should, but I'm not hopeful.  I'm guessing it's new and 
not-yet-supported hardware.  I'll take your advise and open a bug report 
with Fedora.

Don

-- 
Don Harden                       harden at Gsu.EDU
Department of Chemistry          564 NSC
Georgia State University         ph:  (404) 413 5555
Atlanta, Ga. 30302-4098          fax: (404) 413 5505 

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