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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: [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: Sat, 5 Jun 2010 00:13:17 +0200
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Cc: linux-kernel@vger.kernel.org
References: <201005310142.40209.goretux@gmail.com>
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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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