Please remove that external driver and upload dmesg log since (re)boot. People would need to know what happened under the original kernel driver.
** Summary changed: - Realtek Ethernet Hardware not recognized + Realtek RTL810xE Ethernet [10ec:8136] Subsystem [1179:f91b] not recognized ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1875117 Title: Realtek RTL810xE Ethernet [10ec:8136] Subsystem [1179:f91b] not recognized Status in linux package in Ubuntu: Incomplete Bug description: This report follows: https://askubuntu.com/questions/770368/realtek-ethernet-driver-error-ubuntu-16-04 and https://askubuntu.com/questions/1228988/ethernet-unclaimed As with the previous "Ask Ubuntu", a solution is to follow the README at: https://github.com/ghostrider-reborn/realtek-r8101-linux-driver trusting the auto-build and install of a Realtek 8101 driver rather than 8169. This process needs to be repeated for each kernel upgrade. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-26-generic 5.4.0-26.30 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CasperMD5CheckResult: skip Date: Sun Apr 26 14:10:27 2020 InstallationDate: Installed on 2020-04-15 (10 days ago) InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200414) MachineType: TOSHIBA Satellite Pro C50-B ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-26-generic root=UUID=3793a168-5390-48fc-923d-028a89ef2b0c ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-26-generic N/A linux-backports-modules-5.4.0-26-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/11/2014 dmi.bios.vendor: TOSHIBA dmi.bios.version: 1.20 dmi.board.asset.tag: * dmi.board.name: ZSWAA dmi.board.vendor: TOSHIBA dmi.board.version: 1.00 dmi.chassis.asset.tag: * dmi.chassis.type: 10 dmi.chassis.vendor: TOSHIBA dmi.chassis.version: * dmi.modalias: dmi:bvnTOSHIBA:bvr1.20:bd04/11/2014:svnTOSHIBA:pnSatelliteProC50-B:pvrPSCLVA-002001:rvnTOSHIBA:rnZSWAA:rvr1.00:cvnTOSHIBA:ct10:cvr*: dmi.product.family: * dmi.product.name: Satellite Pro C50-B dmi.product.sku: PSCLVA dmi.product.version: PSCLVA-002001 dmi.sys.vendor: TOSHIBA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1875117/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp