various issues with ACPI sleep and 2.6

various issues with ACPI sleep and 2.6

[Bill Nottingham]

Testing ACPI sleep under 2.6, I noticed the following issues
(Thinkpad T40, i855PM chipset):

- USB fails on resume (sent to linux-usb-devel)
- DRI being loaded at all causes X to fail on resume
- MCE on resume:

 MCE: The hardware reports a non fatal, correctable incident occurred on CPU 0.
 Bank 1: f200000000000175
 
Are these known issues, or 'features' of suspend on this ACPI
bios?

Bill

Re: various issues with ACPI sleep and 2.6

[Jeff Garzik]

On Tue, Dec 23, 2003 at 11:57:39AM -0500, Bill Nottingham wrote:
> Testing ACPI sleep under 2.6, I noticed the following issues
> (Thinkpad T40, i855PM chipset):

Do you have the latest BIOS?  There were some ACPI problems IBM
corrected (due to responses from Linux users!).


> - USB fails on resume (sent to linux-usb-devel)
> - DRI being loaded at all causes X to fail on resume

X power management is sorta "hope and pray" AFAIK :)

	Jeff

Re: various issues with ACPI sleep and 2.6

[Kronos]

> Testing ACPI sleep under 2.6, I noticed the following issues
> (Thinkpad T40, i855PM chipset):
>
> - USB fails on resume (sent to linux-usb-devel)

Known issue. Unload usb modules before suspending.

> - DRI being loaded at all causes X to fail on resume

Known issue. See
http://dri.sourceforge.net/cgi-bin/moin.cgi/PowerManagement

> - MCE on resume:
>
>  MCE: The hardware reports a non fatal, correctable incident occurred on CPU 0.
>  Bank 1: f200000000000175

Hum, this is strange. I saw similar  messages on my laptop but they were
related to bank0-issue on athlon CPUs. No idea of what's going on there.

Luca
-- 
Reply-To: kronos@kronoz.cjb.net
Home: http://kronoz.cjb.net
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a sixteen  bit patch to an  eight bit operating system  originally coded
for a  four bit microprocessor  which was  written by a  two-bit company
that can't stand a bit of competition.

Re: various issues with ACPI sleep and 2.6

[Bill Nottingham]

Kronos (kronos@kronoz.cjb.net) said: 
> > - DRI being loaded at all causes X to fail on resume
> 
> Known issue. See
> http://dri.sourceforge.net/cgi-bin/moin.cgi/PowerManagement

Yes, with the patch there, suspend/resume of running DRI apps works
fine, even without switching VTs as suggested. 

> > - MCE on resume:
> >
> >  MCE: The hardware reports a non fatal, correctable incident occurred on CPU 0.
> >  Bank 1: f200000000000175
> 
> Hum, this is strange. I saw similar  messages on my laptop but they were
> related to bank0-issue on athlon CPUs. No idea of what's going on there.

I saw a report of this occuring with APM suspend as well for one person
on a T40; may or may not be related.

Bill