Public bug reported:
Hello,
After a long time in sleep mode, my Desktop running Ubuntu 20.04 loses its
network ethernet link.
the demsg shows the following lines after sleep exit:
[10402.613687] PM: suspend exit
[10403.035311] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[10403.121362] ata1.00: configured for UDMA/133
[10403.363882] e1000e: enp0s25 NIC Link is Down
[10406.484276] e1000e: enp0s25 NIC Link is Up 10 Mbps Full Duplex, Flow
Control: Rx/Tx
[10406.484281] e1000e 0000:00:19.0 enp0s25: 10/100 speed: disabling TSO
[10406.484322] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s25: link becomes ready
the ethernet is up but at 10 M / full duplex
DHCP of my router does not give any address.
the only way to retrieve a Full 1000 M functionnal link is to reboot the
machine.
Can't determine how much time of sleep it needs to reproduce, since an
immediate sleep/wake-up does not produce network loss.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: network
** Attachment added: "lspci-vnvn.log"
https://bugs.launchpad.net/bugs/1872408/+attachment/5353029/+files/lspci-vnvn.log
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https://bugs.launchpad.net/bugs/1872408
Title:
Network lost after long sleep
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