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Don't recommand it.
If you stop it while you need a lot of processing power, you will end up burning your processor.
It's possible to lower your...
May be the the problem is with the printing service, it's called CUPS.
Try to install it :
sudo apt-get install cups
And check official doc...
When do you get this message,
It seems like a failure in environment variable intialization.
It's possible that your issue is not only for dark theme. The GTK+ drop box is supposed to display, at least, the default elementary theme but its...