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[Leif <1525207@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Laggy performance on Chromium/Electron based applications when running
maximized windows.

References/more inforation: 
https://github.com/Microsoft/vscode/issues/162
https://github.com/atom/atom/issues/9724
https://code.google.com/p/chromium/issues/detail?id=514510#c37

The issue is solved by using updated drivers from this ppa:
https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers

Or by using latest from git here:
http://cgit.freedesktop.org/xorg/driver/xf86-video-intel

Only able to reproduce on 4k resolutions and higher

Hardware specs:
Dell XPS 15-9530
Resolution 3200x1200
Intel HD Graphics 5000
Intel Core i7-4702hq
16 GB ram
SSD drive

Ubuntu 15.10, fully updated per 2015-12-11

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New

** Package changed: ubuntu => xserver-xorg-video-intel (Ubuntu)

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https://bugs.launchpad.net/bugs/1525207

Title:
  xserver-xorg-video-intel slow perfomance, needs updating

Status in xserver-xorg-video-intel package in Ubuntu:
  New

Bug description:
  Laggy performance on Chromium/Electron based applications when running
  maximized windows.

  References/more inforation: 
  https://github.com/Microsoft/vscode/issues/162
  https://github.com/atom/atom/issues/9724
  https://code.google.com/p/chromium/issues/detail?id=514510#c37

  The issue is solved by using updated drivers from this ppa:
  https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers

  Or by using latest from git here:
  http://cgit.freedesktop.org/xorg/driver/xf86-video-intel

  Only able to reproduce on 4k resolutions and higher

  Hardware specs:
  Dell XPS 15-9530
  Resolution 3200x1200
  Intel HD Graphics 5000
  Intel Core i7-4702hq
  16 GB ram
  SSD drive

  Ubuntu 15.10, fully updated per 2015-12-11

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