Another option is to check via CLI. 
show port info detail | include Port:|Link\sState:|Link\sUps:|Link\sDowns: will get you a pretty concise list of all ports with their current state as well as the time of the last link up and link down. See the example output below from one of my lab switches.
X440G2-12t-10G4.1 # show port info detail | inc Port:|Link\sState:|Link\sUps:|Link\sDowns: Port: 1
    Link State: Active, 1Gbps, full-duplex
    Link Ups:       1        Last: Thu Aug 03 16:59:29 2017
    Link Downs:     0        Last: --
Port: 2
    Link State: Ready
    Link Ups:       0        Last: --
    Link Downs:     0        Last: --