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[Bug 1241808] Re: Built-in display on XPS-13 L322x not working after upgrade to 13.10

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Søren Bredlund Caspersen <soeren.b.c@xxxxxxxxx>
Date: Sun, 06 Apr 2014 13:22:08 -0000
Reply-to: Bug 1241808 <1241808@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Package changed: ubuntu => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1241808

Title:
  Built-in display on XPS-13 L322x not working after upgrade to 13.10

Status in Dell Sputnik:
  New
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  After upgrading to 13.10 (kernel 3.11.0-12-generic) the backlight does
  not work and the display is scrambled (see attached image).

  The display works if I booting into an old kernel from 13.04
  (specifically, 3.8.0-29, which is latest kernel version under 13.04 in
  which the backlight worked for me - 3.8.0-30 and 3.8.0-31 never worked
  on my machine).

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