Since 4.19-rc1 (up to and including 4.19-rc3) there is now a problem with the r8169 network interface when resuming from suspend - the negotiated network speed after resume is only 10Mbit/s half-duplex.
There is no problem with 4.18.y, and when booting into 4.19-rc3 from power-on the full 1000Mbit/s full duplex link is correctly negotiated. Bisecting the kernel commits between 4.18.6 and 4.19-rc1 identifies the following commit as the bad commit: "r8169: remove rtl8169_set_speed_xmii"[1] Before suspend: dmesg[2], ethtool eth0[3] - 1000Mbit/s full duplex After resume from suspend: dmesg[4], ethtool eth0[5] - 10Mbit/s half duplex Anyone else seeing this? Thanks Neil 1. https://github.com/torvalds/linux/commit/a2965f12fde696d3754347bd48a7149b8de45b21 2. http://ix.io/1mn8 3. http://ix.io/1ltR 4. http://ix.io/1mn9 5. http://ix.io/1ltO
