WiFi（r8712u）仅在执行rmmod和modprobe后才能工作

登录后我的Wifi无法正常工作。我不知道为什么它在手动执行rmmod && modprobe后开始工作。 我猜在启动过程中订单有问题。

以下是我的dmesg的两个片段。 第一个是在正常启动期间。 第二个属于我的手动rmmod / modprobe步骤。

你知道我能做些什么来解决这个问题吗？

系统：Kubuntu：16.04,4.4.0-10-通用x86_64

[ 7.087388] r8169 0000:07:00.0 enp7s0: link down [ 7.087428] IPv6: ADDRCONF(NETDEV_UP): enp7s0: link is not ready [ 7.089674] IPv6: ADDRCONF(NETDEV_UP): enp8s0: link is not ready [ 7.109848] r8712u: module is from the staging directory, the quality is unknown, you have been warned. [ 7.110464] r8712u: register rtl8712_netdev_ops to netdev_ops [ 7.110467] usb 1-4: r8712u: USB_SPEED_HIGH with 4 endpoints [ 7.110907] usb 1-4: r8712u: Boot from EFUSE: Autoload OK [ 7.282782] r8169 0000:08:00.0 enp8s0: link down [ 7.284825] IPv6: ADDRCONF(NETDEV_UP): enp8s0: link is not ready [ 7.617220] usb 1-4: r8712u: CustomerID = 0x000a [ 7.617222] usb 1-4: r8712u: MAC Address from efuse = 00:87:40:10:08:be [ 7.617223] usb 1-4: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 7.617261] usbcore: registered new interface driver r8712u [ 7.621546] r8712u 1-4:1.0 wlx0087401008be: renamed from wlan0 [ 7.732358] cfg80211: World regulatory domain updated: [ 7.732360] cfg80211: DFS Master region: unset [ 7.732361] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time) [ 7.732363] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) [ 7.732365] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) [ 7.732366] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A) [ 7.732368] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A) [ 7.732370] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s) [ 7.732371] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s) [ 7.732373] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A) [ 7.732374] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A) [ 7.777931] nvidia-modeset: Allocated GPU:0 (GPU-129106a8-8953-c390-c543-a6e522aa3b5e) @ PCI:0000:03:00.0 

做完之后： sudo rmmod r8712u && sudo modprobe r8712u

 [ 188.145386] usbcore: deregistering interface driver r8712u [ 188.282787] usb 1-4: reset high-speed USB device number 2 using ehci-pci [ 192.478971] r8712u: module is from the staging directory, the quality is unknown, you have been warned. [ 192.481375] r8712u: register rtl8712_netdev_ops to netdev_ops [ 192.481380] usb 1-4: r8712u: USB_SPEED_HIGH with 4 endpoints [ 192.481947] usb 1-4: r8712u: Boot from EFUSE: Autoload OK [ 193.181882] usb 1-4: r8712u: CustomerID = 0x000a [ 193.181887] usb 1-4: r8712u: MAC Address from efuse = 00:87:40:10:08:be [ 193.181890] usb 1-4: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 193.182264] usbcore: registered new interface driver r8712u [ 193.184687] r8712u 1-4:1.0 wlx0087401008be: renamed from wlan0 [ 193.209228] IPv6: ADDRCONF(NETDEV_UP): wlx0087401008be: link is not ready [ 193.914988] r8712u 1-4:1.0 wlx0087401008be: 1 RCR=0x153f00e [ 193.915733] r8712u 1-4:1.0 wlx0087401008be: 2 RCR=0x553f00e [ 194.022709] IPv6: ADDRCONF(NETDEV_UP): wlx0087401008be: link is not ready [ 194.346729] IPv6: ADDRCONF(NETDEV_UP): wlx0087401008be: link is not ready [ 194.380906] IPv6: ADDRCONF(NETDEV_UP): wlx0087401008be: link is not ready [ 204.899115] IPv6: ADDRCONF(NETDEV_CHANGE): wlx0087401008be: link becomes ready 

sudo lshw -class network

  *-network description: Wireless interface physical id: 1 bus info: usb@1:4 logical name: wlx0087401008be serial: 00:87:40:10:08:be capabilities: ethernet physical wireless configuration: broadcast=yes driver=r8712u ip=192.168.178.20 multicast=yes wireless=IEEE 802.11bgn 

的lsusb

 Bus 001 Device 002: ID 0bda:8172 Realtek Semiconductor Corp. RTL8191SU 802.11n WLAN Adapter 

更新： cat / var / log / syslog | grep NetworkManager

 ar 5 21:28:12 ferhat-X58A-UD5 NetworkManager[882]:  urfkill disappeared from the bus Mar 5 21:28:12 ferhat-X58A-UD5 NetworkManager[882]:  ofono is now available Mar 5 21:28:12 ferhat-X58A-UD5 NetworkManager[882]:  failed to enumerate oFono devices: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided by any .service files Mar 5 21:28:12 ferhat-X58A-UD5 NetworkManager[882]:  ModemManager available in the bus Mar 5 21:28:12 ferhat-X58A-UD5 NetworkManager[882]:  wpa_supplicant running Mar 5 21:28:13 ferhat-X58A-UD5 NetworkManager[882]:  [1457209693.030273] [platform/wifi/wifi-utils-wext.c:519] wext_get_range(): (wlan0): couldn't get driver range information (19). Mar 5 21:28:13 ferhat-X58A-UD5 NetworkManager[882]:  (wlan0): driver WEXT range request failed Mar 5 21:28:13 ferhat-X58A-UD5 NetworkManager[882]:  (wlan0): failed to initialize WiFi driver Mar 5 21:28:13 ferhat-X58A-UD5 NetworkManager[882]: (NetworkManager:882): GLib-GObject-CRITICAL **: object NMDeviceWifi 0xfa83d0 finalized while still in-construction Mar 5 21:28:13 ferhat-X58A-UD5 NetworkManager[882]: (NetworkManager:882): GLib-GObject-CRITICAL **: Custom constructor for class NMDeviceWifi returned NULL (which is invalid). Please use GInitable instead. Mar 5 21:28:13 ferhat-X58A-UD5 NetworkManager[882]:  wlan0: factory failed to create device: (unknown) Mar 5 21:28:13 ferhat-X58A-UD5 NetworkManager[882]:  devices added (path: /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-4/1-4:1.0/net/wlx0087401008be, iface: wlx0087401008be) Mar 5 21:28:13 ferhat-X58A-UD5 NetworkManager[882]:  device added (path: /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-4/1-4:1.0/net/wlx0087401008be, iface: wlx0087401008be): no ifupdown configuration found. Mar 5 21:28:17 ferhat-X58A-UD5 NetworkManager[882]:  startup complete 

Answer 1

您运行的Ubuntu 16.04尚未经过全面测试和调试，因此尚未完全准备好发布。 我相信建议的网络管理器版本包含一个错误。 我不确定是否有任何方法可以在16.04中安装早期版本的NM。 https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1489154

在此期间，我建议你这样做：

 gksudo gedit /etc/rc.local 

如果您没有文本编辑器gedit，请使用nano或kate或leafpad。 将文件更改为：

 #!/bin/sh -e # # rc.local # # This script is executed at the end of each multiuser runlevel. # Make sure that the script will "exit 0" on success or any other # value on error. # # In order to enable or disable this script just change the execution # bits. # # By default this script does nothing. sleep 3 service network-manager restart exit 0 

仔细校对，保存并关闭文本编辑器。

重启。 有什么改进？