Ethernet broke after update (NetworkManager)

English Network/Internet
1

After a update on 29/10, NetworkManager can’t connect at all to the network. I’m booting of from a previous kernel: 6.5.6-1

ip a

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 noprefixroute 
       valid_lft forever preferred_lft forever
2

I assume the output is from the non-working situation.

There is no network device at all detected. And as the ip command is independent from NetworkManager, I assume not NM is the culprit. but it is something more basic, the system not “seeing” the device(s).

1 Like
3

Idk about that, but it happened after some realtek driver/firmware got updated, but still the system reports as “plugged in”:

04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
4

Examine the kernel output

sudo dmesg | egrep -i "eth|net|firmware"

Also, what is returned by

inxi -Nna
5 
sudo dmesg | egrep -i "eth|net|firmware"
[    0.081220] Spectre V2 : Enabling Speculation Barrier for firmware calls
[    0.265187] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.265466] audit: initializing netlink subsys (disabled)
[    0.303112] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[    0.356846] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge
[    0.368156] NetLabel: Initializing
[    0.368156] NetLabel:  domain hash size = 128
[    0.368156] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.368156] NetLabel:  unlabeled traffic allowed by default
[    0.368156] NET: Registered PF_MCTP protocol family
[    0.387564] NET: Registered PF_INET protocol family
[    0.391816] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    0.391825] NET: Registered PF_XDP protocol family
[    0.625315] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.625454] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.625598] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.625731] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.625930] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.626078] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.626213] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.626343] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.626498] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.626626] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.626760] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.626894] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[    0.680981] drop_monitor: Initializing network drop monitor service
[    0.695361] NET: Registered PF_INET6 protocol family
[    1.186623] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[    6.377652] [drm] Found UVD firmware Version: 1.130 Family ID: 16
[    6.378842] [drm] Found VCE firmware Version: 53.26 Binary ID: 3
[   17.015542] NET: Registered PF_QIPCRTR protocol family

inxi -Nna
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: ASUSTeK PRIME B450M-A driver: N/A modules: r8169 pcie: gen: 1
    speed: 2.5 GT/s lanes: 1 port: f000 bus-ID: 04:00.0 chip-ID: 10ec:8168
    class-ID: 0200
    chip-ID: 10ec:8168 class-ID: 0200
  IF: enp4s0 state: up speed: 100 Mbps duplex: full [redacted mac]