Happens very frequently for me also on a vanilla 18.04 (Thinkpad), but only on a small subset of applications. What's strange is that the bug appeared a few days ago after years without problem.
I do not use any external peripheral (nothing connected to the laptop except the power supply). An easy solution to solve this without rebooting the whole system is to disable then enable the TouchScreen (disabling alone is not sufficient). Following Paul Müller's steps: - find your TouchScreen input ID with ``xinput`` (in my case ``Melfas LGDisplay Incell Touch id=9`` - ``xinput --disable 9`` - ``xinput --enable 9`` If you want to automate this in a script/alias, you can easily retrieve the ID once you know the name of the TouchScreen: - ``xinput list --id-only 'Melfas LGDisplay Incell Touch'`` -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/402892 Title: Mouse cursor gets stuck in "drag and drop" mode Status in OpenShot Video Editor: New Status in X.Org X server: New Status in chromium-browser package in Ubuntu: Confirmed Status in firefox package in Ubuntu: Confirmed Status in rapidsvn package in Ubuntu: Confirmed Bug description: Binary package hint: rapidsvn When clicking on the Bookmark root or on one of the bookmarks below the mouse cursor gets stuck in "drag n drop" mode, blocking all keyboard entry and also mouse clicks for the the whole GUI (systemwide). Unfortunately I cannot provide any debug or other information, as I have to reboot everytime. I am running Ubuntu 9.04 with compiz enabled. Many thanks in advance for your help with this problem, /nxT To manage notifications about this bug go to: https://bugs.launchpad.net/openshot/+bug/402892/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
