Ubuntu fonts are corrupted on certain windows

Question

I'm running ubuntu 14.10 on a lenovo yoga pro 3. Specifically I followed the instructions detailed here during the istallation process:

Yoga 3 Linux HOWTO

When I login to Ubuntu sometimes the fonts are fine, other times they look as they do in this screen shot. (Sorry I don't have enough reputation to post direct images). On certain applications however, ie chrome the fonts are fine.

Screenshot

As you can see some of the fonts in some of the windows are corrupted. This problem happened very rarely until recently when I did,

sudo apt-get update

I've also tried things like restarting lightdm but to no eval.

Answer 1

This command doesn't update your applications. It only updates the list of packages ("list of applications"). Use this to update your applications:

sudo apt-get update && sudo apt-get upgrade

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To hopefully solve your actual problem, go to System Settings → Universal Access and make sure "Large Text" is off (should be default).

Then run this command:

sudo apt-get install unity-tweak-tool

When it's finished, open unity tweak tool and click "fonts". Choose smaller text sizes.