Join Log in
Score:0
Lance LI avatar Ubuntu

Ubuntu ethernet interface disabled after sleep from suspend

vn flag
Lance LI

Suspend Ubuntu (Ubuntu 20.04.2 LTS), Ethernet is disabled, didn't find proper method to bring it back except restarting the system.

ifconfig -a can list the ethernet interface but can't bring it up.

[18:34:27][~]ifconfig -a
enp4s0: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether f4:8e:38:d7:a6:99  txqueuelen 1000  (Ethernet)
        RX packets 309471  bytes 368744669 (368.7 MB) 
        RX errors 0  dropped 64  overruns 0  frame 0
        TX packets 104341  bytes 20010577 (20.0 MB) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 19

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 5336  bytes 527575 (527.5 KB) 
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 5336  bytes 527575 (527.5 KB) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp3s0: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether b8:81:98:c4:af:13  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[18:34:31][~]sudo ifconfig enp4s0 up
SIOCSIFFLAGS: No such device
77
0 + 1
galexite avatar
pk flag
galexite
Did the driver crash? You can see `dmesg` to get the output from the kernel after resuming from suspend. Also, what is your Ethernet card model?
0
Reply
ธงชาติไทย
Elon Musk
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.