Fedora
NetworkManager 不檢測電纜何時連接或斷開
在我的 Fedora 21 64bit Gnome 3.14.3 安裝中，我注意到 NeworkManager 總是連接到有線連接，即使沒有連接電纜：
但是，驅動程序（或其他東西）確實知道它是否已連接 - 我可以通過以下方式看到
watch "dmesg | tail -10"：[ 7349.552202] atl1c 0000:07:00.0: atl1c: enp7s0 NIC Link is Down [ 7373.496359] IPv6: ADDRCONF(NETDEV_UP): enp7s0: link is not ready [ 7376.271449] atl1c 0000:07:00.0: atl1c: enp7s0 NIC Link is Up<100 Mbps Full Duplex> [ 7376.271482] IPv6: ADDRCONF(NETDEV_CHANGE): enp7s0: link becomes ready [ 7553.088393] atl1c 0000:07:00.0: atl1c: enp7s0 NIC Link is Down [ 7597.096174] atl1c 0000:07:00.0: atl1c: enp7s0 NIC Link is Up<100 Mbps Full Duplex> [ 7620.983378] atl1c 0000:07:00.0: atl1c: enp7s0 NIC Link is Down [ 7622.556874] atl1c 0000:07:00.0: atl1c: enp7s0 NIC Link is Up<100 Mbps Full Duplex>當電纜拔出時，這會導致問題，但它仍然認為它已連接到網際網路，並嘗試同步或連接並失敗。
lspci -v07:00.0 Ethernet controller: Qualcomm Atheros AR8152 v2.0 Fast Ethernet (rev c1) Subsystem: Lenovo Device 3979 Flags: bus master, fast devsel, latency 0, IRQ 29 Memory at e0500000 (64-bit, non-prefetchable) [size=256K] I/O ports at 2000 [size=128] Capabilities: <access denied> Kernel driver in use: atl1c Kernel modules: atl1c
ifconfig:enp7s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.22 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::de0e:a1ff:fed1:d12b prefixlen 64 scopeid 0x20<link> ether dc:0e:a1:d1:d1:2b txqueuelen 1000 (Ethernet) RX packets 111875 bytes 67103677 (63.9 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 87152 bytes 7793021 (7.4 MiB) TX errors 0 dropped 0 overruns 0 carrier 13 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 0 (Local Loopback) RX packets 3669 bytes 880913 (860.2 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3669 bytes 880913 (860.2 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
sudo yum list installed NetworkManager*Installed Packages NetworkManager.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates NetworkManager-adsl.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates NetworkManager-bluetooth.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates NetworkManager-config-connectivity-fedora.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates NetworkManager-config-server.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates NetworkManager-devel.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates NetworkManager-glib.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates NetworkManager-glib-devel.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates NetworkManager-iodine.x86_64 0.0.4-4.fc21 @fedora NetworkManager-iodine-gnome.x86_64 0.0.4-4.fc21 @fedora NetworkManager-l2tp.x86_64 0.9.8.7-3.fc21 @fedora NetworkManager-openconnect.x86_64 0.9.8.6-2.fc21 @updates NetworkManager-openswan.x86_64 0.9.8.4-4.fc21 @fedora NetworkManager-openswan-gnome.x86_64 0.9.8.4-4.fc21 @fedora NetworkManager-openvpn.x86_64 1:0.9.9.0-3.git20140128.fc21 @koji-override-0/$releasever NetworkManager-openvpn-gnome.x86_64 1:0.9.9.0-3.git20140128.fc21 @koji-override-0/$releasever NetworkManager-pptp.x86_64 1:0.9.8.2-6.fc21 @koji-override-0/$releasever NetworkManager-pptp-gnome.x86_64 1:0.9.8.2-6.fc21 @koji-override-0/$releasever NetworkManager-ssh.x86_64 0.9.3-0.3.20140601git9d834f2.fc21 @fedora NetworkManager-ssh-gnome.x86_64 0.9.3-0.3.20140601git9d834f2.fc21 @fedora NetworkManager-tui.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates NetworkManager-vpnc.x86_64 1:0.9.9.0-6.git20140428.fc21 @koji-override-0/$releasever NetworkManager-vpnc-gnome.x86_64 1:0.9.9.0-6.git20140428.fc21 @koji-override-0/$releasever NetworkManager-wifi.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates NetworkManager-wwan.x86_64 1:0.9.10.1-1.4.20150115git.fc21 @updates
modinfo atl1cfilename: /lib/modules/3.17.8-300.fc21.x86_64/kernel/drivers/net/ethernet/atheros/atl1c/atl1c.ko.xz version: 1.0.1.1-NAPI license: GPL description: Qualcom Atheros 100/1000M Ethernet Network Driver author: Qualcomm Atheros Inc., <nic-devel@qualcomm.com> author: Jie Yang srcversion: 4333D8ADEE755DD5ABDF0B8 alias: pci:v00001969d00001083sv*sd*bc*sc*i* alias: pci:v00001969d00001073sv*sd*bc*sc*i* alias: pci:v00001969d00002062sv*sd*bc*sc*i* alias: pci:v00001969d00002060sv*sd*bc*sc*i* alias: pci:v00001969d00001062sv*sd*bc*sc*i* alias: pci:v00001969d00001063sv*sd*bc*sc*i* depends: intree: Y vermagic: 3.17.8-300.fc21.x86_64 SMP mod_unload signer: Fedora kernel signing key sig_key: F4:8F:FC:A3:C9:62:D6:47:0F:1A:63:E0:32:D1:F5:F1:93:2A:03:6A sig_hashalgo: sha256如果這是一個錯誤，是 NetworkManager 還是其他什麼？在 Fedora 19 下使用相同的驅動程序（在其備份中的最新核心中似乎是相同的版本），我對此沒有任何問題。
我最終開始整理一份錯誤報告，並被告知刪除
NetworkManager-config-server軟體包可以解決它 - 所以我這樣做了：sudo yum autoremove NetworkManager-config-server然後我重新啟動，它工作:)
在 Fedora32 上我做了
sudo dnf remove NetworkManager-config-connectivity-fedora重新啟動，問題消失了