Re: ACPI battery state and resume not working on Inspiron 5150
From: Joe Marcus Clarke (marcus_at_marcuscom.com)
Date: 08/07/03
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To: Kevin Oberman <oberman@es.net> Date: Thu, 07 Aug 2003 12:06:30 -0400
On Thu, 2003-08-07 at 10:31, Kevin Oberman wrote:
> > From: Joe Marcus Clarke <marcus@marcuscom.com>
> > Date: Wed, 06 Aug 2003 16:01:37 -0400
> > Sender: owner-freebsd-current@freebsd.org
> >
> >
> > --=-MHp9eSkqmbnyoWl+2a1w
> > Content-Type: text/plain
> > Content-Transfer-Encoding: quoted-printable
> >
> > On Wed, 2003-08-06 at 15:56, Barney Wolff wrote:
> > > On Wed, Aug 06, 2003 at 03:31:01PM -0400, Joe Marcus Clarke wrote:
> > > > ACPI-1287: *** Error: Method execution failed
> > > > [\\_SB_.PCI0.LPCB.BAT1._STA] (Node 0xc6137640), AE_NOT_EXIST
> > >=20
> > > I would not expect BAT1 to exist unless you have 2 batteries installed.
> >
> > Ah, good point. However, I don't see any battery sysctls, and I do have
> > at least one battery installed.
> >
> > > As to resume, on my I5000 it takes almost a minute to come back from
> > > S3, but does eventually come back on a -current from 7/30.
> >
> > Thanks for the suggestion. I'll wait a bit longer.
>
> Well, I did some experimenting yesterday with the ACPI code on my IBM
> T30 and learned one thing...if you plan on suspending, you need to set
> a sleep delay. Before I set the delay I had some nasty problems
> because power went away immediately and the disk cache did not have a
> chance to flush (ouch!) and left the display where it should not be.
>
> I noticed that Windows XP has a delay of about 5 seconds. I set the
> sysctl and tried again and things went MUCH better. The suspend didn't
> leave the disk corrupt (whew!) and the display dropped to low
> resolution before the graphics was shut down and switched back on
> resume! My Radeon M7 even retained sync.
>
> Of course, the USB driver simply does not recover from a suspend on
> ACPI and this should be fixed before too long. Also, the backlight
> stays on making the suspend NVU (not very useful). But it is a huge
> improvement and adding a delay MAY help a lot of other laptop
> suspend/resume areas.
>
> Whether this will help th I5000 problems, I can't say, but it seems
> like suspend/resume is the most common show-stopper for ACPI on
> laptops, so it's worth a shot. If there is a trend that indicates that
> a short delay in suspending fixes a number of problems, the default
> delay should probably be modified from 0 to 4 or 5.
I tried your suggestion, but this just prolonged the inevitable for 5
seconds. The laptop still remained dead to all input and no video after
resume.
Joe
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