This bug applies both to GDK and Qt. It is connected on rendering of character by X11 with graphic card. The character glyphs are clearly cached in a memory which is "corrupted". The same characters rendered many times in a window have same display.
Strangely, HTML page display by Firefox seemed unaffected. ** Package changed: ubuntu => xorg (Ubuntu) ** Changed in: xorg (Ubuntu) Status: New => Confirmed -- The characters/fonts get covered with dark square blocks https://bugs.launchpad.net/bugs/377545 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs