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[Launchpad Bug Tracker <1411300@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: xserver-xorg-video-ati (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1411300

Title:
  Radeon flickering line after sleep

Status in xserver-xorg-video-ati package in Ubuntu:
  Confirmed

Bug description:
  Since Ubuntu 14.10, no matter what DE or version of Ubuntu (Xubuntu,
  Kubuntu), after sleep there is a flickering line at the bottom of my
  screen.  For Kubuntu, it can be prevented by simply requiring a
  password after resume.  For Unity, running "unity --replace" works as
  a workaround, and for Xubuntu, it's random as to whatever fixes it or
  not.

  It has been an annoyance, but I don't want to go back to an earlier
  version of Ubuntu, as the Radeon driver in 14.10, actually now allows
  me to use WebGL in Chrome, and things like Google Maps..  (it was a
  big problem as the previous radeon driver had a lot of bugs on this
  GPU, most of which were in fact fixed).  I also can't use FGLRX,
  because for whatever reason, it is actually slower than Ubuntu 14.10's
  included open source driver (weird, I know, right?)  The driver is
  generally perfect, except this problem with the flickering line.  I am
  using the VGA compatible controller: Advanced Micro Devices, Inc.
  [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series].

  Please assist, because this is a laptop, and can't just change
  graphics cards (I would if it was the solution though), and well,
  hitting hard times, so switching laptops isn't a choice.  Besides,
  it's only 3 years old and still does everything I need done.

  I made a video demonstrating the flickering line at the bottom of the
  screen on resume from sleep.  Sometimes videos explain things better
  than words:  https://www.youtube.com/watch?v=V-t3K95g898

  I would also like to add that I have completely reformatted the hard
  drive and reinstalled many other versions of Ubuntu, to find that
  14.10 literally is the only one having this issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
  ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2
  Uname: Linux 3.16.0-29-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Thu Jan 15 11:05:03 2015
  InstallationDate: Installed on 2015-01-05 (10 days ago)
  InstallationMedia: Kubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: xserver-xorg-video-ati
  UpgradeStatus: No upgrade log present (probably fresh install)

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