Hello, Indeed the solution #108 of matorres124 worked for me. (The arrowmouse doesn't flicker anymore on the top area of my middle screen.
However one verry verry annoying bug remains ! When I have one window that I want to drag and drop in another screen, if I am not fast enough, it gets stucked in between, and then the 2 concerned screens start to flicker on their whole area + their opened windows start to intermitently slightly resize themselves, while I cannot click anywhere anymore. Then the only solution I have found to stop this terrible thing is terrible as well, I spam ctrl+alt+f4 to close this stucked window... I tried to do as in the post #109 of wajuzdonny but it seems that for me this step is useless. My config is : - About the graphic card, typing $ lspci -vnn | grep -A 12 '\''[030[02]\]' | grep -Ei "lay|kernel" in the terminal gives me this answer : 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7500M/7600M Series] [1002:6840] (prog-if 00 [VGA controller]) Kernel driver in use: radeon Kernel modules: radeon - about the wiring : the original laptop screen + 2 additional samsung 22" USBplugged. So I have one USBhub, linked to 2 displaylink USB3.0toHDMI devices (and passive HDMI male to DVI female adapters). - about the orientation : one samsung on the left with portrait orientation, one on the other side with normal landscape orientation. Also this is a much less major issue but when I boot with this config all my desktop shortcut go on the left screen... Would you know why? By thanking you. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1278223 Title: Mouse Flickering after adding 3rd Monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1278223/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs