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



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

-- 
Matt Horan matt@matthoran.com http://matthoran.com/

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