Tested with proposed kernel 4.15.0-23-generic and seems to be fixed.
# uname -r 4.15.0-23-generic
# ethtool enp8s0 ... Speed: 10000Mb/s ... Link detected: yes
Tested with proposed kernel 4.15.0-23-generic and seems to be fixed.
# uname -r
4.15.0-23-generic
# ethtool enp8s0
...
Speed: 10000Mb/s
...
Link detected: yes