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[Lukasz Sanek <lukasz.sanek@xxxxxxxxx>]

I've just updated from Utopic to Vivid and I think I have the same
problem. Icons in the Unity Launcher are jagged (see for example Sublime
Text icon in screenshot unity-launcher-a.png). Notice the difference
between Sublime Text icon in unity-lancher-a.png and unity-
launcher-b.png- in the second screenshot I modified
/usr/share/applications/sublime-text.desktop by setting
Icon=/usr/share/icons/hicolor/128x128/apps/sublime-text.png instead of
Icon=sublime-text. The icon looks much better than in unity-
launcher-a.png. It seems that if Icon parameter is set to "sublime-
text", Unity automatically picks icons which are the closest to launcher
icon size configured in Appearance Settings (34px in my case). Thus the
Sublime Text icon in unity-launcher-a.png is actually the 48x48 icon,
scaled down. The problem is that something is wrong scaling, and the
resulting icons look bad. Other bad-looking examples in my screenshots
are: Digikam, Eclipse, Terminal.

** Attachment added: "unity-launcher-a.png"
   https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1437767/+attachment/4383292/+files/unity-launcher-a.png

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https://bugs.launchpad.net/bugs/1437767

Title:
  Icons contain pixellated artifacts

Status in unity package in Ubuntu:
  Confirmed

Bug description:
  After upgrading from utopic to vivid beta, many (but apparently not
  all) icons in Unity contain pixellation artifacts, as if it's been
  scaled up very slightly.  Please see the attachment and note the
  launcher, as well as "Security & Privacy" which was highlighted when
  taking the screenshot.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: unity 7.3.2+15.04.20150324.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.19.0-10.10-generic 3.19.2
  Uname: Linux 3.19.0-10-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.16.2-0ubuntu5
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Sat Mar 28 19:48:12 2015
  DistUpgraded: 2015-03-28 19:13:12,615 DEBUG enabling apt cron job
  DistroCodename: vivid
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:2226]
  InstallationDate: Installed on 2015-03-07 (22 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: LENOVO 20CMCTO1WW
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-10-generic root=/dev/mapper/ubuntu--vg-root ro acpi_osi=Linux acpi_backlight=vendor psmouse.proto=imps quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: Upgraded to vivid on 2015-03-29 (0 days ago)
  XorgConf:
   Section "Monitor"
       Identifier             "<default monitor>"
       DisplaySize            276 156    # In millimeters
   EndSection
  dmi.bios.date: 01/23/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N10ET28W (1.05 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CMCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN10ET28W(1.05):bd01/23/2015:svnLENOVO:pn20CMCTO1WW:pvrThinkPadX250:rvnLENOVO:rn20CMCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CMCTO1WW
  dmi.product.version: ThinkPad X250
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.12.1+15.04.20150303-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.59-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.0-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.0-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  xserver.bootTime: Sat Mar 28 19:26:54 2015
  xserver.configfile: /etc/X11/xorg.conf
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                1005 
   vendor                                     LGD
  xserver.version: 2:1.17.1-0ubuntu3

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