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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.

htorque
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TimS
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3 Answers3

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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'
htorque
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    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
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    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
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    @allyourcode Looking at some possibly related bug reports at http://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
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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.

Horst Schirmeier
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  • This no longer seems to work with Google Chrome version 75.0. I, too, have a BGR display and both Chrome and Firefox do incorrect subpixel rendering. – Mikko Rantalainen Jun 26 '19 at 06:17
  • This worked for me in ubuntu 23.04, after chrome and other applications *stopped* respecting the settings in dconf. make sure to also delete `10-sub-pixel-rgb.conf` in the same folder! – Mumbleskates Jun 22 '23 at 06:48
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In latest ubuntu versions (such as 22.10) sub-pixel ordering (RGB/BGR/VRGB/VBGR) is set in dconf-editor under path /org/gnome/desktop/interface/font-rgba-order - such as shown on this screenshot enter image description here

Eugene
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