I do not agree that this is ATI only. After upgrading an Intel mobo using on-board Intel graphics from 14.04 to 14.10, I got the same problem. It is not connected with any one font. dpkg-reconfigure fontconfig did not help; neither did removing /etc/fonts/fonts.conf.
What does fix it, but only 95%, is turning off hinting. I used the Unity tweak tool. I can still find a stray example of bad characters here and there. I am running the classic, not Unity interface. Tested with apps: FireFox, Chrome, Thunderbird, Gimp, Inkspace, Libreoffice all of which had the problem. The fonts look a lot better with hinting turned on! -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to fontconfig in Ubuntu. https://bugs.launchpad.net/bugs/554935 Title: fontconfig corrupted fonts Status in fontconfig package in Ubuntu: New Bug description: Binary package hint: fontconfig This was initially reported as a KDE bug, but it was later determined to be a fontconfig bug. See -> https://bugs.kde.org/show_bug.cgi?id=233187 for origional bug report Fontconfig version :2.8.0 The Antialiasing settings in System Settings-> Appearance -> Fonts can cause font corruption, depending on the settings. It occurs randomly, only for that particular character on that screen. By character, I mean that for example, all "Y"s that are in the application are corrupted. This occurs if the antialiasing settings are set to "enbled" and with the following combinations of settings SubPixel Rendering: RGB | Hinting Style: None SubPixel Rendering: RGB | Hinting Style: Slight SubPixel Rendering: RGB | Hinting Style: Medium SubPixel Rendering: RGB | Hinting Style: Full SubPixel Rendering: Disabled | Hinting Style: Medium SubPixel Rendering: Disabled | Hinting Style: Full and does not occur with SubPixel Rendering: Disabled | Hinting Style: None SubPixel Rendering: Disabled | Hinting Style: Slight Ive taken a screenshot, so please take a look -> http://img52.imageshack.us/img52/7463/snapshot1x.png This occurs only in Lucid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fontconfig/+bug/554935/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

