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Bug#742563: linux: Black screen for internal laptop display on Intel HD Graphics 4400



On Mon, 2014-03-24 at 23:46 -0400, Matt Horan wrote:
> On Tue, Mar 25, 2014 at 02:58:28AM +0000, Ben Hutchings wrote:
> > On Mon, 2014-03-24 at 21:20 -0400, Matthew Horan wrote:
> > > Source: linux
> > > Version: 3.14-rc7
> > > Severity: important
> > > Tags: upstream
> > > 
> > > Dear Maintainer,
> > > 
> > > When testing the linux-image-3.14-rc7-amd64 package from experimental, I
> > > discovered an issue with the handling of the internal laptop display.
> > > 
> > > The system boots but shortly after the kernel has loaded, the internal laptop
> > > display goes blank. If an external display is connected, the system displays
> > > boot messages on the external display instead of the internal display. If xorg
> > > is started, only the external displplay is usable -- the internal display
> > > remains black. Closing the laptop lid and opening it reactivates the internal
> > > display.
> > > 
> > > I was able to find an upstream bug [1] which may be relevant.
> > > 
> > > I do not experience this issue with the 3.13 kernel.
> > 
> > You didn't include the link.
> > 
> > Ben.
> > 
> > -- 
> > Ben Hutchings
> > Make three consecutive correct guesses and you will be considered an expert.
> 
> [1] https://bugs.freedesktop.org/show_bug.cgi?id=76103

Thanks, we'll track that bug report.

Ben.

-- 
Ben Hutchings
Make three consecutive correct guesses and you will be considered an expert.

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