Lock up when going to 'economy mode' (battery)

Eric Anderson anderson at centtech.com
Fri Apr 28 01:35:23 UTC 2006

Nate Lawson wrote:
> Eric Anderson wrote:
>> Here's another thing I noticed (unrelated to above):
>> I booted with the main battery, and had a dvd drive in the option bay.
>> Unplug the AC, battery remaining time shows about 4 hours.
>> Plug AC back in.
>> Then did:
>> atacontrol detach ata1
>> and removed the dvd drive.
>> Then, I inserted the secondary battery.
>> I didn't notice anything (no battery charging, no dmesg info, etc).
>> I then unplugged the AC, and the battery remaining time shows '-1'.
>> Hints?
> Battery bay hotplug detection is not yet implemented.  If you boot with 
> the battery in, then do the swap and back, it will work.  I have a local 
> patch that implements it but it's not stable enough to commit.  It 
> handled hotplug of lots of devices, and last I remember hung up on lpt 
> hotplug.  I think iwasaki@ fixed this with his acpi_dock commit.
> Now that acpi_dock has been added to -current, it may make sense to 
> re-test my patch.

Yea, you're right.  Works fine when booted with both batteries installed.

Thanks for clarifying.


Eric Anderson        Sr. Systems Administrator        Centaur Technology
Anything that works is better than anything that doesn't.

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