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Date: Wed, 29 Aug 2007 13:49:38 -0600
From: "Andy Willis" <os2-wireless_users@2rosenthals.com>
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Subject: Re: [OS2Wireless] Wireless adapter starts on AC, not on battery

Lewis G Rosenthal wrote:
> On 08/29/07 11:50 am, Andy Willis thus wrote :
>> Neil Waldhauer wrote:
>>> My wireless adapter failed at the last BayWarp meeting. It seems I 
>>> forgot to
>>> bring the power adapter. No problem, I thought, I'll just run on 
>>> battery.
>>>
>>> But the Wireless adapter didn't init -- XWLAN said no card detected. 
>>> I got
>>> home, plugged it in, and then the Wireless adapter worked normally.
>>>
>>> I can unplug it, and it works OK. But if I boot on battery, it 
>>> doesn't work.
>>> The notebook  is a Thinkpad T43. The adapter is an Intel 2915 ABG.
>>>
>>> Any ideas for making it work on battery?
>>>
>>> Thanks,
>>> Neil
>> My T42 with the Intel 2200BG behaves like that unless APM.sys is 
>> setup.  If APM is not setup (for instance using ACPI instead) it 
>> behaves this way.  Without APM installed the only way I can use the 
>> card while on wireless is by changing the power settings in the BIOS. 
>>  Configure - Power - Battery Optimized changed to Automatic or Maximum 
>> Performance.  If you have APM installed and it doesn't work for that 
>> card then you should be able to boot with the Automatic or Maximum 
>> Performance and then use the Power widget to drop to Battery Optimized 
>> after booting up.
>> Andy
>>
> Ditto on the T43 with the 2915ABG. APM.SYS needs to be loaded and Max 
> Perf in BIOS.
> 
> I've had no success as yet with even the latest ACPI & APM.ADD drivers 
> (20070817). This is some of the stuff I think we'll be discussing at 
> Warpstock this year, as we've all had issues with power mgmt, hidden 
> SSID/encryption oddities, and the like.
> 
You have to have APM.sys and Max Perf?  Mine is fine with either/or 
(and both is fine too).
Andy

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