Re: Display issues with Linux 3.1

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* Uli Armbruster <uli.armbruster@xxxxxxxxxxxxxx> [10.11.2011 14:53]:
> * Taylor Hedberg <tmhedberg@xxxxxxxxx> [10.11.2011 13:50]:
> > Uli Armbruster, Thu 2011-11-10 @ 07:45:11+0100:
> > > I can confirm this behavior, however I'm not sure if it's software
> > > related. I have the impression that this happens here only if the
> > > laptop is cold (e.g. because I carried it around outside in the cold
> > > german autumn). But Taylor's describtion fits perfectly to the
> > > behavior I have, so maybe it really is caused by the kernel.
> > > 
> > > I have a 01:00.0 VGA compatible controller: ATI Technologies Inc RV350
> > > [Mobility Radeon 9600 M10] and use the radeon driver.
> > 
> > Does the problem disappear if you downgrade the kernel? It certainly
> > does for me. That would tell you whether it's hardware or software issue
> > on your machine.
> 
> I'll try to look into it. I also have the linux-rt kernel installed, which is still version 3.0.7. I'll tell you if it happens as well with this kernel.

Ok here on my laptop it's definitely hardware-based, the backlight doesn't work in the first moment, when the laptop is cold. I just booted my cold laptop into 3.0.7 linux-rt and it happened there as well.


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