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From: Eric Lacombe <goretux@gmail.com>
To: Zhenyu Wang <zhenyuw@linux.intel.com>, Len Brown <lenb@kernel.org>,
       Dave Airlie <airlied@linux.ie>
Subject: Re: [BUG] ACPI/dynamic-hybrid-graphics (?) on Vaio VPCZ11 - screen does not light up on resume [was: Re: Intel Arrandale IGP - screen does not light up on resume]
Date: Mon, 7 Jun 2010 14:31:33 +0200
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References: <201005310142.40209.goretux@gmail.com> <201006050013.17653.goretux@gmail.com>
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I find a way to light up the screen of my laptop after resume (but the solution 
is not really satisfactory) :
When the resume step seems complete, I plug an auxiliary monitor through the 
VGA connector, and the laptop screen light up immediately.

Any idea on the source of this problem ? and how to resolve it ?

Thanks in advance for your response.

	Eric

Le samedi 5 juin 2010 00:13:17 Eric Lacombe, vous avez ?crit :
> Hi, (the introduction is at the end of this one, it comes from a previous
> mail sent to Zhenyu Wang)
> 
> I was thinking that it could come from bogus ACPI tables.
> 
> Someone said to me (from sony-vaio-z-series@lists.launchpad.net) that with
> a patched BIOS (that someone does and that I don't really want to test)
> that allows to access a more advanced menu from my laptop, it will allows
> to have the switch button (that switches between nvidia chipset and Intel
> IGP) behave statically and not dynamically as it does now.
> And it seems that with its laptop he was able to resume correctly from the
> nvidia chipset.
> 
> I added Dave Airlie, as I know he played with hybrid-graphics (by the way
> switcheroo make crashed my laptop)
> 
> I could send to you my DSDT if it could give you some clues on what screwed
> things up. Just ask to me.
> 
> If someone has any idea, I could do some tests, try some patchs ?
> And as always feel free to ask me more information if you need.
> 
> Best regards,
> 
> 	Eric
> 
> Le lundi 31 mai 2010 01:42:39, Eric Lacombe a ?crit :
> > Hi,
> > 
> > I've got a problem with my laptop (powered by i7 Arrandale, it's a Sony
> > Vaio Z11Z9E), when I resume from "suspend to ram" my screen does not
> > light up. X uses the Intel IGP.
> > Maybe it is an issue with the driver of the IGP of the Core i7 Arrandale?
> > 
> > I currently use Linux 2.6.34, and have tested 2.6.33 and 2.6.32 (I see on
> > google that there were some problems about Intel IGP and blackscreen. I
> > was hit by them too at that time)
> > 
> > If you have any suggestions or if you want me to test any patch, I would
> > be glad to do so.
> > Feel free to ask me any information I could provide to you about this
> > problem.
> > 
> > Best regards,
> > 
> > 	Eric
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