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[monte <monte3@xxxxxxxxx>]

Would like to add that this behavior can be seen not only in title bar. Some programs (gedit for example) and certain gtk elements (as drop-down menus) also has wrong subpixel antialiasing. Changing setting between "rgb" and "bgr" in "/org/gnome/settings-daemon/plugins/xsettings/rgba-order" makes no difference for cases mentioned above. But when changing to "vrgb" or "vbgr" there is visible difference. It looks like some internal gnome or gtk setting is hard set to "bgr" and doesn't get value of "rgb" in any case. Turning monitor and picture 180 degrees confirms this statement - the text is smooth and without any color edges.
In attached screenshot you can see examples of this bug. There is picture of UbuntuTweak window, Cairo Dock tooltip and comparison between text rendering in gedit and leafpad. When you zoom image you can see that in first three cases text have red color shifted to the right, though it has to be shifted to the left.

** Attachment added: "other applications affected too"
   https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1293497/+attachment/4094425/+files/screenshot.png

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https://bugs.launchpad.net/bugs/1293497

Title:
  window title has incorrect subpixel antialias on high-dpi screen

Status in “unity” package in Ubuntu:
  Confirmed

Bug description:
  On a high-dpi screen, the window title has a blurry color-shift
  (especially noticeable in Radiance) which seems to be caused by sub-
  pixel anti-aliasing. It is so big that it doesn't achieve the purpose
  of sub-pixel anti-aliasing.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: unity 7.1.2+14.04.20140313-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
  Uname: Linux 3.13.0-17-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.13.3-0ubuntu1
  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: Mon Mar 17 11:41:32 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  DkmsStatus:
   virtualbox, 4.3.6, 3.13.0-12-generic, x86_64: installed
   virtualbox, 4.3.6, 3.13.0-15-generic, x86_64: installed
   virtualbox, 4.3.6, 3.13.0-17-generic, x86_64: installed
  EcryptfsInUse: Yes
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:3978]
  InstallationDate: Installed on 2014-02-02 (42 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 "Trusty Tahr" - Alpha amd64 (20140201)
  MachineType: LENOVO 20266
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-17-generic.efi.signed root=UUID=4bfb3686-b9f7-487d-81f6-eceb41097ad9 ro quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/31/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 76CN31WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Yoga2
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900058STD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo Yoga 2 Pro
  dmi.modalias: dmi:bvnLENOVO:bvr76CN31WW:bd10/31/2013:svnLENOVO:pn20266:pvrLenovoYoga2Pro:rvnLENOVO:rnYoga2:rvr31900058STD:cvnLENOVO:ct10:cvrLenovoYoga2Pro:
  dmi.product.name: 20266
  dmi.product.version: Lenovo Yoga 2 Pro
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.11+14.04.20140310-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-1ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Mon Mar 17 09:43:54 2014
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               16970
   vendor                                     SDC
  xserver.version: 2:1.15.0-1ubuntu7

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