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[Tamir <tamir.r@xxxxx>]

on the kernel 3.16.0-21-generic # 28-Ubuntu SMP Mon Oct 6 16:00:43 UTC
2014 x86_64 x86_64 x86_64 GNU / Linux to normal  :) - no delay/

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https://bugs.launchpad.net/bugs/1377007

Title:
  Delay in response to user actions in Ubuntu 14.10 on cards AMD

Status in “lightdm” package in Ubuntu:
  Confirmed

Bug description:
  Constant periodic belated response of the system to the user. Evident even when you drive across the screen just with the mouse.
  When you turn off the laptop weighs a welcome screen for a long time until the power goes off.
  Perhaps the problem is in the other modules of the operating system, such as the open source driver for AMD graphics cards in the kernel 3.16
  P.S. In Ubuntu 14.04 no such problem.
  P.S.S. Graphics: GLX Renderer: Gallium 0.4 on AMD ARUBA
  Card-1: Advanced Micro Devices [AMD/ATI] Radeon HD 7520G
  Card-2: Advanced Micro Devices [AMD/ATI] Radeon HD 7670M
  Resolution: 1366x768@60.1hz 

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: lightdm 1.12.0-0ubuntu2
  ProcVersionSignature: Ubuntu 3.16.0-20.27-generic 3.16.3
  Uname: Linux 3.16.0-20-generic x86_64
  ApportVersion: 2.14.7-0ubuntu2
  Architecture: amd64
  CasperVersion: 1.344
  CurrentDesktop: Unity
  Date: Fri Oct  3 04:45:14 2014
  LiveMediaBuild: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20141002)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: lightdm
  UpgradeStatus: No upgrade log present (probably fresh install)

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