Confirmation of power management problem

ipw2200 Shawn Starr 4 participants 7 messages Oct 10, 2004 – Nov 27, 2005 7 messages not in the archive ACPI

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Shawn Starr

author

2004-10-10 23:32 UTC #0 lore raw

I managed to install Windows XP and test the ipw2200 wireless card, when I shut down the system with Windows, ACPI turned off the ipw2200 card, In Linux, because ACPI does not work for the T42 thinkpad, the wifi card remains on even after holding the power button to cut power.

Can I cut power to the ipw2200 within Linux when I don't want to use the card?

Shawn.

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Alejandro Bonilla

2004-10-11 00:16 UTC #2 lore raw

Shawn,

You cannot remove the power going to the adapter. You may not load
the module, so you can avoid any type of problem.

I do use a T40 and do not have a problem.

- Alejandro

Quoted 7 lines · Shawn Starr

I managed to install Windows XP and test the ipw2200 wireless card, when I shut down the system with Windows, ACPI turned off the ipw2200 card, In Linux, because ACPI does not work for the T42 thinkpad, the wifi card remains on even after holding the power button to cut power.
Can I cut power to the ipw2200 within Linux when I don't want to use the card?
Shawn.

Quoted 11 lines

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Pavel Machek

2004-10-18 13:35 UTC #3 lore raw

In reply to a message not in the archive

Hi!

Quoted 4 lines

I managed to install Windows XP and test the ipw2200 wireless card, when I shut down the system with Windows, ACPI turned off the ipw2200 card, In Linux, because ACPI does not work for the T42 thinkpad, the wifi card remains on even after holding the power button to cut power.

So you hold power button for four seconds and it does not turn the ipw2200 off? Well, IBM has some broken hardware to fix if that is the case.

Pavel

Signature · 9 lines

People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!


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Shawn Starr

author

2004-10-21 20:50 UTC #5 lore raw

It's been resolved by Len, his newest ACPI updates in 2.6.9-rc4+ fixed that problem. ACPI was not shutting the device down, the only buzzing heard now is when the laptop is in S3 mode, but I believe this to be normal since it needs to resume w/o reloading the firmware. This does work upon resumption of system.

When I press power button, after the system has turned 'off', the CPU fan shuts down and so does the ipw2200bg card.

Hardware is all good :)

Shawn.

Quoted 7 lines · Pavel Machek

Hi!
Quoted 4 lines
I managed to install Windows XP and test the ipw2200 wireless card, when I shut down the system with Windows, ACPI turned off the ipw2200 card, In Linux, because ACPI does not work for the T42 thinkpad, the wifi card remains on even after holding the power button to cut power.

Quoted 5 lines

So you hold power button for four seconds and it does not turn the ipw2200 off? Well, IBM has some broken hardware to fix if that is the case.
Pavel

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Shawn Starr

author

2004-10-11 06:38 UTC #9 lore raw

Interesting, I believe the IBM ACPI has been merged into ACPI proper as latest -mm shows ACPI ThinkPad IBM source files.

Quoted 31 lines · Joris Mocka

Hi Shawn,
Shawn Starr sagte:
Quoted 2 lines
The problem is, there is power going to the adapter even if I don't load the driver.
...before I load the module on my T42 there is no power on wlan, if I indicate it on the wlan-led!
Quoted 3 lines
I can confirm this because when you shut it off, there is a distinct buzzing coming from the ipw2200 device (right underneath the Sympatics touchpad).
...I will try to hear for it in the evening!
Quoted 2 lines
If I use Linux to shut down the system w/ ACPI, then I have to physically cut power by removing battery then it is totally off.
...I did asking for the same couple of days ago but nobaody had any hints for me. Unloading the driver didn't work, led was still on an powering off didn't work. There was a hint to switch off apic:
http://mailman.linux-thinkpad.org/pipermail/linux-thinkpad/2004-September/0
19992.html but it didn't worked for me. I have to test it without loading the ipw2200 module, maybe then it will work!? But for powering off you just have to press the power button maybe 30 to 50 seconds. Then it will power off without removing battery.
Quoted 3 lines
This does not happen when booted into XP...something is fishy, I do know ACPI *IS* broken with the T42 as this was confirmed @ OLS this year.

Quoted 5 lines

...but it's working much better than apm. Using apm will freeze the T42 totally. The only thing that didn't work is power off, rest is fine:
Buttons, Sleep in state 3, powering off hd's and so on. Regards
Joris

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Shawn Starr

2004-10-21 06:26 UTC #12 lore raw

Re: Bogus MCE upon resumption of system?

Suspend to RAM, haven't gotten around to rebuilding kernel with USB not compiled in.

Can anyone verify this is a bogus MCE? it occurs only after resuming from suspend from RAM.

Shawn.

Quoted 12 lines · Pavel Machek

Ahoj!
Quoted 5 lines
MCE: The hardware reports a non fatal, correctable incident occurred on CPU 0. Bank 1: f200000000000105
Of note, when resume I see this MCE, though i suspect it is bogus upon resume.
You did not tell me if it was suspend-to-disk or -to-RAM. Also you'd better mail lkml... I know a little about MCEs.
Pavel

Shawn Starr

2005-11-27 09:20 UTC #13 lore raw

Re: Bogus MCE upon resumption of system? - Resolved

As of 2.6.15-rc2 (or eariler .15 snapshot) The kernel now enables MCE checking on resumption from suspend from disk thus there is no more bogus MCEs.

-snip-

[4358769.531000] [nosave pfn 0x3c4]<7>[nosave pfn 0x3c5]<6>[4358769.531000] 
Intel machine check architecture supported.
[4358769.531000] Intel machine check reporting enabled on CPU#0.
[4358769.531000] swsusp: Restoring Highmem

Thanks,

Shawn.

Quoted 21 lines · Shawn Starr

Suspend to RAM, haven't gotten around to rebuilding kernel with USB not compiled in.
Can anyone verify this is a bogus MCE? it occurs only after resuming from suspend from RAM.
Shawn.
Quoted 12 lines · Pavel Machek
Ahoj!
Quoted 5 lines
MCE: The hardware reports a non fatal, correctable incident occurred on CPU 0. Bank 1: f200000000000105
Of note, when resume I see this MCE, though i suspect it is bogus upon resume.
You did not tell me if it was suspend-to-disk or -to-RAM. Also you'd better mail lkml... I know a little about MCEs.
Pavel