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I've just changed text size to 0 in Gnome Tweak app. Then all of the texts in the app have gone. So I can't change text size anymore. I don't know what to do :D Is there any way to fix it using Terminal? Using Ubuntu 12.04. Waiting for help.

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I love experimenting. :D – Mahesh Jul 6 '12 at 13:01
up vote 6 down vote accepted

Remove the settings file and log out and you will be fine.

Removing the dconf binary file:

rm ~/.config/dconf/user

Restarting xorg:

sudo service lightdm restart
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Warning: this removes a lot of other settings too. There is probably a way to just set a valid font size again. – Volker Siegel Aug 11 '14 at 9:20

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