Wired network stopped working

[Shompol]

Hello, I have not used wired network on my desktop for some time, and now it appears to be not functional. Wifi works fine.

sudo lshw -C network
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: vboxnet0
serial: 0a:00:27:00:00:00
capabilities: ethernet physical
configuration: broadcast=yes multicast=yes

I tried to manually update the config to managed=true, but that did not help:

shompol@htpc:~$ cat /etc/NetworkManager/nm-system-settings.conf
# This file is installed into /etc/NetworkManager, and is loaded by
# NetworkManager by default. To override, specify: '--config file'
# during NM startup. This can be done by appending to DAEMON_OPTS in
# the file:
#
# /etc/default/NetworkManager
#

[main]
plugins=ifupdown,keyfile

[ifupdown]
managed=true

[Iowan]

That color is hard to read...
You an see if this thread helps.

[Shompol]

Ok, completely removed Virtualbox from the system. Now:

$ sudo lshw -C network
*-generic
description: Wireless interface
product: RT2800 802.11n PCI
vendor: RaLink
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlan0
version: 00
serial: 00:08:54:8d:6d:f4
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rt2860 ip=192.168.0.196 latency=32 maxlatency=4 mingnt=2 multicast=yes wireless=RT2860 Wireless
resources: irq:20 memory:f9000000-f900ffff

Full lshw found the following:
*-serial UNCLAIMED
description: SMBus
product: 82801JI (ICH10 Family) SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 00
width: 64 bits
clock: 33MHz
configuration: latency=0
resources: memory:f9106000-f91060ff ioport:500(size=32)

[Shompol]

sudo lspci -vvv
00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller
Subsystem: Giga-byte Technology Device 5001
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 4
Region 0: Memory at f9106000 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at 0500 [size=32]
Kernel modules: i2c-i801

[Shompol]

after sudo modprobe i2c-i801

I get a driver in use!!!

$ sudo lspci -vvv

00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller
Subsystem: Giga-byte Technology Device 5001
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 18
Region 0: Memory at f9106000 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at 0500
Kernel driver in use: i801_smbus
Kernel modules: i2c-i801


However ifconfig still only shows lo and wlan, --> no lan.

[praseodym]

Can you show:

lspci -nnk | grep -iA2 net
lsmod

[Shompol]

$ lspci -nnk
00:1f.3 SMBus [0c05]: Intel Corporation 82801JI (ICH10 Family) SMBus Controller [8086:3a30]
Kernel driver in use: i801_smbus
Kernel modules: i2c-i801
04:00.0 Network controller [0280]: RaLink RT2800 802.11n PCI [1814:0601]
Kernel driver in use: rt2860
Kernel modules: rt2860sta

$ lsmod
Module Size Used by
i2c_i801 9306 0
rt2860sta 542482 1

[praseodym]

Did you check the BIOS-settings?

The interface name is vboxnet0 according to the first posting. Do you use Ubuntu in a virtual machine? In that case you have do deactivate wireless in your VBox/VMWare settings and activate cable.

[Shompol]

Did you check the BIOS-settings?

The interface name is vboxnet0 according to the first posting. Do you use Ubuntu in a virtual machine? In that case you have do deactivate wireless in your VBox/VMWare settings and activate cable.

I have not touched BIOS since the last time LAN worked. Since you think it could be BIOS. any setting in particular I should look at?

Interface vboxnet0 was installed by virtualbox-ose. I use it to run Windows XP inside Ubuntu. As mentioned above I completely uninstalled the package, and hence the interface is gone too. While it is possible that it could cause the problem originally, virtualbox is no longer relevant.

"...and activate cable" -- that's the part I need help with.

Thank you
- Shompol

[praseodym]

Tried to reinstall the kernel via wireless?

sudo apt-get install --reinstall linux-image-$(uname -r) linux-headers-$(uname -r) dkms build-essential

and reboot.