just noticed also this question and answers on Ask Ubuntu - http://askubuntu.com/questions/584922/how-do-i-fix-fonts-not-rendering- and-missing-letters
seems like the issue is most definitely the version of intel graphics driver ubuntu is using. Some people have "fixed" this by changing to the pure intel graphics driver. Like others, I noticed that using unity-tweak-tool and changing the text scaling factor from 1.0 to 1.15 together within (in firefox) increasing the font size via ctrl+ mouse scroll up fixed these issues in Unity. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1342675 Title: Random characters in screen text suddenly disappear To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1342675/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp