Adding this in case it helps identifying what is going on. Here is the upper part of a screen capture. The red dot is the position of the mouse cursor at the time of the capture. Notice how the "g"s above the y-position of the cursor have a glitch, but not the one below. This happens systematically in Thunderbird and updates as the mouse cursor moves (there is a form of hysteresis : when the mouse cursor moves down, a line is affected after the cursor has passed the line below it ; when moving up, the glitch ceases for a given line only when the cursor reaches it).
** Attachment added: "Capture d’écran_2016-05-03_18-51-16.png" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1568604/+attachment/4654642/+files/Capture%20d%E2%80%99%C3%A9cran_2016-05-03_18-51-16.png -- 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/1568604 Title: Mouse cursor lost when unlocking with Intel graphics To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1568604/+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
