this problem is happenning to me as well, not only on ubuntu vm but also on centos vm. restart to the vm solves the problem. but it seems to me like a virtual box issue. i first thought it was only inside pycharm, and tried the following workaround: http://youtrack.jetbrains.com/issue/IDEA-78860
# --------------------------------------------------------------------- # Run the IDE. # --------------------------------------------------------------------- # Workaround to prevent keyboard input from being blocked by IBus XMODIFIERS="" export XMODIFIERS Add these lines after the Run the IDE. In the pycharm.sh but it happened again... hope this will help. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1316873 Title: Left mouse button stops working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1316873/+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