I have upgraded from the trusty-proposed repository on a Thinkpad X250 and after testing it for a day, it seems to fix the problem for me. No font corruption anymore, even google maps seems to work.
Comment: Might be related or not, but yesterday after the upgrade the minimize/maximize/switch off buttons were gone in the non-maximized windows in the external monitor, today they are back. Go figure. Many thanks! -- 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/1432194 Title: Graphics unstable on Ubuntu 14.04 and 14.10 using Intel HD Graphics 5500 To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1432194/+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