Suspend locks up Toshiba Satelite L355-S7915

Suspend locks up Toshiba Satelite L355-S7915

[Ken Corbin]

Hi Folks,

I've installed Ubuntu 9.04 (kernel version 2.6.28-16) on a new laptop.  For 
the most part everything is working, but suspend to disk and suspend to RAM 
both lock the box up.  The shutdown looks normal, but then the screen comes 
back on with low level backlight, and the system won't respond to anything.  
Holding power button down for 5 seconds forces a poweroff and is the only way 
to recover.

I want to do whatever it takes to get this working.  I'm a pretty good C 
programmer.  I've never done any kernel hacking but am willing to learn.  
What I need now is some pointers where I should start looking.

Thanks a bunch,
-Ken

Re: Suspend locks up Toshiba Satelite L355-S7915

[Alexey Starikovskiy]

Hi Ken,

Probably the easiest way for you will be to install/upgrade Ubuntu 9.10, 
which is just out.
It has latest kernel, so most probably your problem will be fixed.

Regards,
Alex.

Ken Corbin wrote:
> Hi Folks,
>
> I've installed Ubuntu 9.04 (kernel version 2.6.28-16) on a new laptop.  For 
> the most part everything is working, but suspend to disk and suspend to RAM 
> both lock the box up.  The shutdown looks normal, but then the screen comes 
> back on with low level backlight, and the system won't respond to anything.  
> Holding power button down for 5 seconds forces a poweroff and is the only way 
> to recover.
>
> I want to do whatever it takes to get this working.  I'm a pretty good C 
> programmer.  I've never done any kernel hacking but am willing to learn.  
> What I need now is some pointers where I should start looking.
>
> Thanks a bunch,
> -Ken
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>   

Re: Suspend locks up Toshiba Satelite L355-S7915 (no longer)

[Ken Corbin]

Too obvious.  And rumors of upgrade problems with 9.10 had me leary of jumping 
into it.  But I went ahead with the upgrade, had no significant issues.  And 
sure enough, that fixed my suspend problem.

There are other problems, but they are minor and can be lived with.  Most 
hotkeys do not work.  And the computer doesn't flash the power button when it 
is suspended.  There is a omnibook module that purports do do these 
functions, but it isn't coded to work with the Satelite L355-S7915.  I've 
been looking into fixing that.  But it has occurred to me that that driver is 
largely duplicating standard acpi functions.  And that it might be a better 
use of my time to look into configuring acpi to work with this laptop.  Any 
recommendations?

Thanks again,
-Ken


On Thursday 05 November 2009 19:55:49 Alexey Starikovskiy wrote:
> Hi Ken,
>
> Probably the easiest way for you will be to install/upgrade Ubuntu 9.10,
> which is just out.
> It has latest kernel, so most probably your problem will be fixed.
>
> Regards,
> Alex.
>
> Ken Corbin wrote:
> > Hi Folks,
> >
> > I've installed Ubuntu 9.04 (kernel version 2.6.28-16) on a new laptop. 
> > For the most part everything is working, but suspend to disk and suspend
> > to RAM both lock the box up.  The shutdown looks normal, but then the
> > screen comes back on with low level backlight, and the system won't
> > respond to anything. Holding power button down for 5 seconds forces a
> > poweroff and is the only way to recover.
> >
> > I want to do whatever it takes to get this working.  I'm a pretty good C
> > programmer.  I've never done any kernel hacking but am willing to learn.
> > What I need now is some pointers where I should start looking.
> >
> > Thanks a bunch,
> > -Ken
> >
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: Suspend locks up Toshiba Satelite L355-S7915 (no longer)

[Len Brown]

> ... upgrade ... that fixed my suspend problem.

good.

> There are other problems, but they are minor and can be lived with.  Most 
> hotkeys do not work.  And the computer doesn't flash the power button when it 
> is suspended.  There is a omnibook module that purports do do these 
> functions, but it isn't coded to work with the Satelite L355-S7915.  I've 
> been looking into fixing that.  But it has occurred to me that that driver is 
> largely duplicating standard acpi functions.  And that it might be a better 
> use of my time to look into configuring acpi to work with this laptop.  Any 
> recommendations?

Generally the platform drivers implement support for non-standard
features that are not included in the generic ACPI support.
Often the non-standard support is implemented with vendor-specific
extensions to ACPI.

Unfortunately, except in a few cases, hotkeys are non-standard.
So extending the platform driver for boxes similar to your own
to talk to your box may be the way to go..

The LED indicator on sleeping, however, is generally standard
(there is a method called "_SST" that we invoke that tells the BIOS
 to start & stop blinking the suspend LED)

Do you know if the LED blinked when Windows suspended on this laptop?

cheers,
Len Brown, Intel Open Source Technology Center

Re: Suspend locks up Toshiba Satelite L355-S7915 (no longer)

[Ken Corbin]

On Saturday 07 November 2009 18:44:46 Len Brown wrote:
>
> > There are other problems, but they are minor and can be lived with.  Most
> > hotkeys do not work.  And the computer doesn't flash the power button
> > when it is suspended.  There is a omnibook module that purports do do
> > these functions, but it isn't coded to work with the Satelite L355-S7915.
> >  I've been looking into fixing that.  But it has occurred to me that that
> > driver is largely duplicating standard acpi functions.  And that it might
> > be a better use of my time to look into configuring acpi to work with
> > this laptop.  Any recommendations?
>
> Generally the platform drivers implement support for non-standard
> features that are not included in the generic ACPI support.
> Often the non-standard support is implemented with vendor-specific
> extensions to ACPI.
>
> Unfortunately, except in a few cases, hotkeys are non-standard.
> So extending the platform driver for boxes similar to your own
> to talk to your box may be the way to go..
>
> The LED indicator on sleeping, however, is generally standard
> (there is a method called "_SST" that we invoke that tells the BIOS
>  to start & stop blinking the suspend LED)
>
> Do you know if the LED blinked when Windows suspended on this laptop?
>
> cheers,
> Len Brown, Intel Open Source Technology Center

The LED blinks when suspended under Windows.  It also blinks, at a much slower 
rate, when suspended in Ubuntu of I have the omnibook module loaded.  I'm 
still looking at how it does that.   Is this something that we should expect 
the stock acpi process to take care of?

Have a nice day,
-Ken

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LED suspend inicator (Re: Suspend locks up Toshiba Satelite L355-S7915 (no longer))

[Len Brown]

> > The LED indicator on sleeping, however, is generally standard
> > (there is a method called "_SST" that we invoke that tells the BIOS
> >  to start & stop blinking the suspend LED)
> >
> > Do you know if the LED blinked when Windows suspended on this laptop?

> The LED blinks when suspended under Windows.  It also blinks, at a much slower 
> rate, when suspended in Ubuntu of I have the omnibook module loaded.  I'm 
> still looking at how it does that.   Is this something that we should expect 
> the stock acpi process to take care of?

_SST, mentioned above, is the standard method to control
the suspend indicator LED, and has been included in the
generic part of Linux for a long time.

-Len