The attached XorgLog.txt shows the mouse is repeatedly: [ 28256.417] (II) event4 - USB OPTICAL MOUSE: device removed
So this might be a hardware problem or a kernel bug. Try plugging it into a different port, or try a different mouse. ** Package changed: xorg (Ubuntu) => xserver-xorg-input-libinput (Ubuntu) ** Also affects: libinput (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: libinput (Ubuntu) Status: New => Incomplete ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Changed in: xserver-xorg-input-libinput (Ubuntu) Status: New => Incomplete -- 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/1890050 Title: Mouse malfunction when launching steam To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890050/+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