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Thread: Ethernet not working - no eth0 device listed

  1. #1

    Default Ethernet not working - no eth0 device listed

    Hi, I'd like some help getting ethernet working on a laptop. Here are the details I know. Please let me know what further information would be helpful:
    Laptop is dual boot with Windows 10 and both wireless and ethernet functioning in Windows so hardware is fine.
    Original installation was Leap 15.2. Upgrade to 15.3 was done via zypper.
    Can't remember if ethernet was working under 15.2 but I think it was.
    Wireless works fine in 15.3 but when ethernet cable plugged in, there are no lights and Network Manager does nothing.

    Please let me know what further info is required to diagnose problem. Thanks.

  2. #2
    Join Date
    Mar 2011
    Location
    Sauerland
    Posts
    7,214

    Default AW: Ethernet not working - no eth0 device listed

    Post:
    Code:
    /sbin/lspci -nnk | grep -iA3 net
    Please use Code-Tags:
    https://forums.opensuse.org/showthre...und-Your-Paste

  3. #3

    Default Re: Ethernet not working - no eth0 device listed

    Thanks. Here's the output:

    Code:
    02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 07)
           Subsystem: Hewlett-Packard Company Device [103c:80c3]
           Kernel driver in use: r8169
           Kernel modules: r8169
    03:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01)
           Subsystem: Hewlett-Packard Company Device [103c:804a]
           Kernel driver in use: wl
           Kernel modules: bcma, wl

  4. #4
    Join Date
    Jun 2008
    Location
    Auckland, NZ
    Posts
    24,115
    Blog Entries
    1

    Default Re: Ethernet not working - no eth0 device listed

    Report back with output from
    Code:
    ip link
    Code:
    ip address
    Code:
    dmesg | egrep -i “eth|net”
    openSUSE Leap 15.4; KDE Plasma 5

  5. #5
    Join Date
    Mar 2011
    Location
    Sauerland
    Posts
    7,214

    Default AW: Ethernet not working - no eth0 device listed

    Also please post:
    Code:
    zypper lr -d
    Code:
    zypper se -si broad 8168
    Code:
    uname -a

  6. #6

    Default Re: Ethernet not working - no eth0 device listed

    OK, thanks. Here we go - in a few messages...

    Code:
    ip link
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    2: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DORMANT group default qlen 1000
        link/ether d8:5d:e2:9c:6e:2d brd ff:ff:ff:ff:ff:ff
        altname wlp3s0
    3: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000
        link/ether 30:8d:99:f6:7e:16 brd ff:ff:ff:ff:ff:ff
        altname enp2s0
    
    Code:
    ip address
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host  
           valid_lft forever preferred_lft forever
    2: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
        link/ether d8:5d:e2:9c:6e:2d brd ff:ff:ff:ff:ff:ff
        altname wlp3s0
        inet 192.168.1.21/24 brd 192.168.1.255 scope global noprefixroute wlan0
           valid_lft forever preferred_lft forever
        inet6 fd00::1:8855:6282:cf9a:527d/64 scope global temporary dynamic  
           valid_lft 7182sec preferred_lft 7182sec
        inet6 fd00::1:4faa:80d8:2a01:1153/64 scope global dynamic mngtmpaddr noprefixroute  
           valid_lft 7182sec preferred_lft 7182sec
        inet6 fe80::4d8e:3147:b523:32b6/64 scope link noprefixroute  
           valid_lft forever preferred_lft forever
    3: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
        link/ether 30:8d:99:f6:7e:16 brd ff:ff:ff:ff:ff:ff
        altname enp2s0
    

  7. #7

    Default Re: Ethernet not working - no eth0 device listed

    Code:
     dmesg | egrep -i "eth|net"
    [   18.940732] r8169 0000:02:00.0 eth0: RTL8106e, 30:8d:99:f6:7e:16, XID 449, IRQ 49
    [   29.047015] NET: Registered protocol family 31
    [   36.222337] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
    [   36.278061] NET: Registered protocol family 38
    [   42.595239] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [   42.972076] r8169 0000:02:00.0 eth0: Link is Down
    [   43.113798] NET: Registered protocol family 17
    [   56.077386] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [  147.136379] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [  793.064559] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [  793.348153] r8169 0000:02:00.0 eth0: Link is Down
    [  831.761774] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [ 1312.581297] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [ 1312.865440] r8169 0000:02:00.0 eth0: Link is Down
    [ 1325.701178] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [ 3848.061842] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [ 3848.353465] r8169 0000:02:00.0 eth0: Link is Down
    [ 3851.004438] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [ 4799.197577] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [ 4799.484496] r8169 0000:02:00.0 eth0: Link is Down
    [ 4906.658638] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [ 7439.641637] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [ 7439.924621] r8169 0000:02:00.0 eth0: Link is Down
    [ 7441.800996] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [ 7705.155932] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [ 7705.443392] r8169 0000:02:00.0 eth0: Link is Down
    [ 7706.595983] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [ 7744.381045] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [ 8928.101608] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [ 8928.360341] r8169 0000:02:00.0 eth0: Link is Down
    [ 8966.651041] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [ 9360.151658] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [ 9360.434463] r8169 0000:02:00.0 eth0: Link is Down
    [ 9362.318328] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [11804.617760] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [11804.908513] r8169 0000:02:00.0 eth0: Link is Down
    [11806.746891] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [11915.988098] r8169 0000:02:00.0 eth0: Link is Down
    [14810.054436] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [14810.338403] r8169 0000:02:00.0 eth0: Link is Down
    [14810.388000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [14812.950578] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [14990.674826] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [14990.933830] r8169 0000:02:00.0 eth0: Link is Down
    [14993.536411] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [17297.215469] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [17297.508003] r8169 0000:02:00.0 eth0: Link is Down
    [17297.569030] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [17299.433258] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [18024.846617] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [18025.158964] r8169 0000:02:00.0 eth0: Link is Down
    [18025.247489] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [18026.351057] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [19467.791746] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [19468.084569] r8169 0000:02:00.0 eth0: Link is Down
    [19480.867158] WARNING: CPU: 0 PID: 16459 at ../net/wireless/sme.c:757 __cfg80211_connect_result+0x3de/0x460 [cfg80211]
    [19480.867162] Modules linked in: rfcomm nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nft_reject nft_ct nft_chain_n
    at nf_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw ip
    table_security af_packet ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables bpfilter cmac algif_hash algif_skcipher af_alg bnep dmi_sysfs bt
    usb btrtl btbcm btintel uvcvideo v4l2_common bluetooth videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common ecdh_generic videodev ecc ext4 crc16 mbcache jbd2 nls_iso8859_1 nls_c
    p437 vfat fat snd_usb_audio snd_usbmidi_lib snd_rawmidi snd_seq_device mc squashfs loop snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_ds
    pcfg soundwire_intel x86_pkg_temp_thermal
    [19483.654621] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [21861.829816] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [21862.116196] r8169 0000:02:00.0 eth0: Link is Down
    [21864.075366] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [21953.463668] RTL8208 Fast Ethernet r8169-200:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
    [21953.802853] r8169 0000:02:00.0 eth0: Link is Down
    [21953.878652] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [21954.981797] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [21965.408176] r8169 0000:02:00.0 eth0: Link is Down

  8. #8

    Default Re: Ethernet not working - no eth0 device listed

    Code:
     zypper lr -d
    #  | Alias                       | Name                                                                                        | Enabled | GPG Check | Refresh | Priority | Type   | URI                                                                                 | Service
    ---+-----------------------------+---------------------------------------------------------------------------------------------+---------+-----------+---------+----------+--------+-------------------------------------------------------------------------------------+--------
     1 | Google-Chrome               | Google-Chrome                                                                               | Yes     | (r ) Yes  | No      |   99     | rpm-md | http://dl.google.com/linux/chrome/rpm/stable/x86_64                                 |
     2 | dvd                         | dvd                                                                                         | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://opensuse-guide.org/repo/openSUSE_Leap_15.3/                                  |
     3 | google-chrome               | google-chrome                                                                               | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | https://dl.google.com/linux/chrome/rpm/stable/x86_64                                |
     4 | hardware                    | Hardware tools (openSUSE_Leap_15.3)                                                         | Yes     | (r ) Yes  | No      |   99     | rpm-md | https://download.opensuse.org/repositories/hardware/openSUSE_Leap_15.3/             |
     5 | openSUSE-Leap-15.3-1        | openSUSE-Leap-15.3-1                                                                        | No      | ----      | ----    |   99     | rpm-md | hd:/?device=/dev/disk/by-id/usb-SanDisk_Cruzer_Blade_4C530003231029115235-0:0-part2 |
     6 | packman                     | packman                                                                                     | Yes     | (r ) Yes  | Yes     |   90     | rpm-md | https://ftp.gwdg.de/pub/linux/misc/packman/suse/openSUSE_Leap_15.3/                 |
     7 | repo-backports-debug-update | Update repository with updates for openSUSE Leap debuginfo packages from openSUSE Backports | No      | ----      | ----    |   99     | NONE   | http://download.opensuse.org/update/leap/15.3/backports_debug/                      |
     8 | repo-backports-update       | Update repository of openSUSE Backports                                                     | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/update/leap/15.3/backports/                            |
     9 | repo-debug                  | Debug Repository                                                                            | No      | ----      | ----    |   99     | NONE   | http://download.opensuse.org/debug/distribution/leap/15.3/repo/oss/                 |
    10 | repo-debug-non-oss          | Debug Repository (Non-OSS)                                                                  | No      | ----      | ----    |   99     | NONE   | http://download.opensuse.org/debug/distribution/leap/15.3/repo/non-oss/             |
    11 | repo-debug-update           | Update Repository (Debug)                                                                   | No      | ----      | ----    |   99     | NONE   | http://download.opensuse.org/debug/update/leap/15.3/oss/                            |
    12 | repo-debug-update-non-oss   | Update Repository (Debug, Non-OSS)                                                          | No      | ----      | ----    |   99     | NONE   | http://download.opensuse.org/debug/update/leap/15.3/non-oss/                        |
    13 | repo-non-oss                | Non-OSS Repository                                                                          | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/distribution/leap/15.3/repo/non-oss/                   |
    14 | repo-oss                    | Main Repository                                                                             | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/distribution/leap/15.3/repo/oss/                       |
    15 | repo-sle-debug-update       | Update repository with debuginfo for updates from SUSE Linux Enterprise 15                  | No      | ----      | ----    |   99     | NONE   | http://download.opensuse.org/debug/update/leap/15.3/sle/                            |
    16 | repo-sle-update             | Update repository with updates from SUSE Linux Enterprise 15                                | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/update/leap/15.3/sle/                                  |
    17 | repo-source                 | Source Repository                                                                           | No      | ----      | ----    |   99     | NONE   | http://download.opensuse.org/source/distribution/leap/15.3/repo/oss/                |
    18 | repo-update                 | Main Update Repository                                                                      | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/update/leap/15.3/oss/                                  |
    19 | repo-update-non-oss         | Update Repository (Non-Oss)                                                                 | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/update/leap/15.3/non-oss/                              |
    20 | snappy                      | snappy                                                                                      | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | https://download.opensuse.org/repositories/system:/snappy/openSUSE_Leap_15.3        |

    Code:
     zypper se -si broad 8168
    S  | Name                           | Type    | Version                                       | Arch   | Repository
    ---+--------------------------------+---------+-----------------------------------------------+--------+------------------
    i+ | broadcom-wl                    | package | 6.30.223.271-pm153.16.5                       | x86_64 | packman
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_150300.59.71-pm153.16.4  | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_150300.59.68-pm153.16.3  | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_150300.59.63-pm153.16.2  | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_150300.59.60-pm153.15.12 | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_150300.59.54-pm153.15.11 | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_150300.59.49-pm153.15.8  | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_150300.59.46-pm153.15.7  | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_150300.59.43-pm153.15.3  | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_59.40-pm153.14.49        | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_59.37-pm153.14.38        | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_59.34-pm153.14.30        | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_59.30-pm153.14.28        | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_59.27-pm153.14.27        | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_59.24-pm153.14.26        | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_59.19-pm153.14.25        | x86_64 | (System Packages)
    i+ | broadcom-wl-kmp-default        | package | 6.30.223.271_k5.3.18_150300.59.76-pm153.16.5  | x86_64 | packman
    i  | mobile-broadband-provider-info | package | 20190618-1.18                                 | noarch | Main Repository

    Code:
    uname -a
    Linux zebra 5.3.18-150300.59.76-default #1 SMP Thu Jun 16 04:23:47 UTC 2022 (2cc2ade) x86_64 x86_64 x86_64 GNU/Linux

  9. #9
    Join Date
    Mar 2011
    Location
    Sauerland
    Posts
    7,214

    Default AW: Ethernet not working - no eth0 device listed

    Ethernet Cable defect?
    Or not plugged in?

  10. #10
    Join Date
    Jun 2008
    Location
    Auckland, NZ
    Posts
    24,115
    Blog Entries
    1

    Default Re: AW: Ethernet not working - no eth0 device listed

    The output you've shared reports that the interface is down. As sauerland mentioned,check the cable first.

    The ethtool utility can be useful here...
    Code:
    /usr/sbin/ethtool eth0
    openSUSE Leap 15.4; KDE Plasma 5

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