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Re: VPCZ11Z9E - screen does not light up on resume

 

I find a way to light up the screen (not totally satisfactory) after resume :
When resume step seems complete, I plug an auxiliary monitor through the VGA 
connector, and the laptop screen light up immediately.

	Eric

Le samedi 5 juin 2010 00:30:17 Eric Lacombe, vous avez écrit :
> I didn't test all the configurations (but sooner for my test it was in
> stamina mode).
> And in fact, with my laptop,  I don't need to boot an old kernel, and it
> doesn't matter what the switch position is, as the screen always light up
> at first time since Linux 2.6.33 in my case (and X always choose Intel
> driver -- I haven't tried nvidia proprietary driver since 2.6.32 when I've
> got black screen issues and didn't do too much googling on the subject).
> 
> Moreover, in my case, no need to add acpi_osi="!Windows 2006"
> 
> I just write a mail to Len Brown and Dave Airlie (CC to LKML), maybe they
> could have some ideas ?!
> 
> 	Eric
> 
> Le vendredi 4 juin 2010 23:42:00, Frederik Questier a écrit :
> > Eric: is your graphics switch still in the right position after suspend?
> > The boot after booting with most kernels has failing graphics switch.
> > Boot a good (old) kernel before the boot you really need, or boot
> > always a good (old) one, like I do. Booting after a suspend, is a
> > second boot, so likely to fail after boot with 'bad' kernel.
> > 
> > Actually, I hadn't success with suspend to RAM on my VPC-Z. I always
> > use hibernate to disk.
> > 
> > On Fri, Jun 4, 2010 at 11:30 PM, Eric Lacombe <goretux@xxxxxxxxx> wrote:
> > > Erf... Maybe it's a problem with bogus ACPI tables...
> > > 
> > > Le vendredi 4 juin 2010 22:38:39 thunderbee, vous avez écrit :
> > >>   Hi,
> > >> 
> > >> On Fri, Jun 4, 2010 at 7:47 PM, Eric Lacombe <goretux@xxxxxxxxx> wrote:
> > >> > I've got a problem with my laptop (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 had the exact same problem with the nvidia card/driver (not solved
> > >> 
> > >> by ctrl-alt-f1 / ctrl-f7 either)
> > >> 
> > >>   Applying the BIOS hack (in another thread) to have the BIOS manage
> > >>   the
> > >> 
> > >> video cards fixed this as the proper card does indeed come back on
> > >> when the laptop comes back from suspend.



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