Perhaps this relates to bug 44169, where certain keys (including media keys) get mapped as mouse events under evdev rather than being handled as keyboard events - resulting in the keys not being handled (or perhaps mapping to unexpected functions).
For now, I'm going to dupe the other two to this one; if bug 44169 looks like the correct match, we can dupe all of these to it.
Perhaps this relates to bug 44169, where certain keys (including media keys) get mapped as mouse events under evdev rather than being handled as keyboard events - resulting in the keys not being handled (or perhaps mapping to unexpected functions).
For now, I'm going to dupe the other two to this one; if bug 44169 looks like the correct match, we can dupe all of these to it.