RTL8125B support was first introduced by https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0439297be95111cf9ef5ece2091af16d140ce2ef ("r8169: add support for RTL8125B") available since v5.9 and on. While Focal has oem-5.10 kernel now, RTL8125B will fail to drive without the firmware.
** Description changed: https://askubuntu.com/questions/1259947/cant-get-rtl8125b-working- on-20-04 + + $ lspci -knn | grep Eth -A3 + 06:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller [10ec:8125] (rev 04) + Subsystem: ASUSTeK Computer Inc. RTL8125 2.5GbE Controller [1043:87d7] + Kernel modules: r8169 + 07:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] [1002:67df] (rev e7) + + $ dmesg | grep -i r8169 + [ 0.911236] r8169 0000:06:00.0: unknown chip XID 64 ** Summary changed: - Possible missing firmware /lib/firmware/rtl_nic/rtl8153b-2.fw for module r8169 + Possible missing firmware /lib/firmware/rtl_nic/rtl8125b-2.fw for module r8169 ** Also affects: linux-firmware (Ubuntu Focal) Importance: Undecided Status: New ** Tags added: amd64 focal hwe-firmware ** Changed in: linux-firmware (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1916558 Title: Possible missing firmware /lib/firmware/rtl_nic/rtl8125b-2.fw for module r8169 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1916558/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
