up vote 11 down vote favorite

In Ubuntu 11.10, I can't find a way to change the sub-pixel byte ordering to BGR. I have a BGR monitor and fonts look blurry because of this. I've installed gnome-tweak-tool but I can't find an option for the sub-pixel ordering. This used to be easy to do with the old font settings window.

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up vote 12 down vote

You can do this using a GUI (dconf-editor from the package dconf-tools) or on the command-line:

GUI

  1. Open dconf-editor
  2. In the left pane, go to /org/gnome/settings-daemon/plugins/xsettings
  3. In the right pane, change the value of the rgba-order key to bgr:

enter image description here

Command-line

Just run:

gsettings set org.gnome.settings-daemon.plugins.xsettings rgba-order 'bgr'
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2  
What if I have one monitor in portrait, and another in landscape? Can I set the subpixel order for each monitor independently? AFAICT, this is unpossible, but perhaps, I'm missing something? – allyourcode May 28 '13 at 23:34
    
Also, Chrome does not seem to use this setting. Is there a way I can set this in Chrome? – allyourcode Aug 14 '13 at 18:26
    
Command -line for gsettings worked perfectly here, thanks! – Casey Murray May 21 '14 at 12:00
    
@allyourcode Looking at some possibly related bug reports at crbug.com it seems like Chrome does not really support vertical subpixel layouts and switching to grayscale AA seems to be the only alternative (go to chrome://flags/#lcd-text-aa for that). – phk Jul 14 '17 at 13:07
up vote 4 down vote

You also may want to change system-wide font settings (and re-login afterwards):

ln -s ../conf.avail/10-sub-pixel-bgr.conf /etc/fonts/conf.d

This fixes sub-pixel rendering on Google Chrome for me, too.

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