The side buttons (BTN_EXTRA/SIDE or buttons 8/9 in Xorg) are mapped to forward/back (Alt+Right/Left). So it sounds like the wheel is getting misinterpreted as that, sometimes.
I wonder if you have found either: * A keyboard modifier stuck down, if not physically then in software. * Some accessibility mode. * A hardware-specific mode within the mouse itself. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2067260 Title: Mouse mapping randomly temporarily changes after Ubuntu 24.04 upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2067260/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
