tail /var/log/kern.log

Oct 30 19:11:49 tom1210-RV411-RV511-E3511-S3511-RV711 kernel: [   19.294890] r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
Oct 30 19:11:49 tom1210-RV411-RV511-E3511-S3511-RV711 kernel: [   19.296054] usbcore: registered new interface driver r8712u
Oct 30 19:11:50 tom1210-RV411-RV511-E3511-S3511-RV711 kernel: [   20.667849] r8712u: 1 RCR=0x153f00e
Oct 30 19:11:50 tom1210-RV411-RV511-E3511-S3511-RV711 kernel: [   20.668972] r8712u: 2 RCR=0x553f00e
Oct 30 19:11:50 tom1210-RV411-RV511-E3511-S3511-RV711 kernel: [   20.780532] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Oct 30 19:11:50 tom1210-RV411-RV511-E3511-S3511-RV711 kernel: [   20.780816] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Oct 30 19:12:17 tom1210-RV411-RV511-E3511-S3511-RV711 kernel: [   47.180242] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Oct 30 19:59:13 tom1210-RV411-RV511-E3511-S3511-RV711 kernel: [ 2862.513200] show_signal_msg: 54 callbacks suppressed
Oct 30 19:59:13 tom1210-RV411-RV511-E3511-S3511-RV711 kernel: [ 2862.513209] vinagre[3238]: segfault at 0 ip 00007fa87392f7c8 sp 00007fff1c270dc8 error 4 in libglib-2.0.so.0.3400.0[7fa8738bd000+f5000]
Oct 31 09:26:08 tom1210-RV411-RV511-E3511-S3511-RV711 kernel: [51256.376162] usb 2-1.5: >USB disconnect, device number 5