crwdns2934241:0crwdne2934241:0 Sho rener
crwdns2934249:0crwdne2934249:0:
Had the exactly same problem with some macbook air 13" and it was finally hardware problem, replaced trackpad + flex cable and got fixed (did clean reinstall of everything software related and didnt fix it still worked in login screen)
crwdns2915684:0crwdne2915684:0:
open