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



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.

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