Same problem on Lubuntu 14.04 Touchscreen: (MasterTouch MT-500 USB), supports only single touch. Mouse not connected.
problem appears in next apps: - Chromium: 62.0.3202.75 - Firefox 28.0 Sometimes MouseUp just not firing: https://prnt.sc/hefody then i close Chromium / Firefox with ALT+F4 but mouse still stuck in "MouseDown" state _systemwide_ : https://www.dropbox.com/s/bf57bg47f3zsq2m/test.mp4?dl=0 Even if I connect the mouse to the computer after the problem occurs - the left mouse button will not work. But mtpaint works fine! There is some difference in how mtpaint and (chromium, firefox) works with mousedown / mouseup events. Any ideas? I need use touchscreen and don't need mouse. So i can't disable the touchscreen as recommended, because this will make the whole system unusable. Thanks ** Also affects: chromium (Ubuntu) Importance: Undecided Status: New ** Also affects: firefox (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/402892 Title: Mouse cursor gets stuck in "drag and drop" mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium/+bug/402892/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs