It is possible that package libgtk-3-0 (3.12.2-0ubuntu15) is the culprit...
I suggest this because there is a bug where fonts become blury in text views, whenever scrollbars are displayed. See https://bugzilla.gnome.org/show_bug.cgi?id=715008 or see https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1309785. The Bugzilla bug #715008 was fixed in version 3.14 of libgtk-3-0, but Utopic (14.10) is only using version 3.12.2 of libgtk-3-0. Perhpas this current bug is also related to the way GTK+3 (libgtk-3-0) handles text views in general? ** Bug watch added: GNOME Bug Tracker #715008 https://bugzilla.gnome.org/show_bug.cgi?id=715008 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gedit in Ubuntu. https://bugs.launchpad.net/bugs/1387219 Title: Mouse pointer disappears and cursor stops blinking Status in “gedit” package in Ubuntu: Confirmed Bug description: Open gedit. Notice the cursor is blinking. Type a few lines of text. Highilight some of the text. Press <CTRL><c> to cut the text. Notice that the mouse ponter is invisible while hovering over the gedit window. Notice that the gedit cursor is no longer blinking. $ uname -a Linux XYZ 3.16.0-23-generic #31-Ubuntu SMP Tue Oct 21 17:56:17 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.10 Release: 14.10 Codename: utopic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gedit/+bug/1387219/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp