An update: I disabled synergy, set the monitor configuration to the desired format and it worked. Re-enabled synergy and all is happy now. Have been through multiple reboot cycles and the monitor config is ok.
So for my case, this appears to be an interaction problem with synergy and monitor configuration, with a fairly easy workaround. -- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1312342 Title: dual monitor breaks when not config'd for builtin monitor is to the left of second monitor Status in “unity” package in Ubuntu: Confirmed Bug description: Upgraded from 13.10 to 14.04 on my dual monitor system. System consists of a system76 laptop (built in monitor is 1920x1080 resolution) and an external monitor (ASUS 1920x1080 resolution). Prior to the upgrade, the monitors were configured with the ASUS monitor above the laptop monitor. After the upgrade, the monitor configuration reverted to be configured with the laptop on the left (ASUS on the right). When I use the Settings->Display tool to move the monitors to the previous configuration, it is no longer possible to move windows between the monitors or to move the cursor between the monitors. This did work fine previously, so is a regression. I have tried several other configurations, and none seem to work other than the default. One other note, I use synergy to provide keyboard and mouse from my desktop system (i.e., the laptop is the client). This works fine, but since it does affect the mouse thought worth mentioning in case there was some interaction from that involved. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1312342/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp
