关于【wifi-direct】的问题- 第1页

FATEH ALIYEV

Asked: 2020-10-03 06:26:54 +0800 CST

Ubuntu 20.04 说 Wi-Fi 已连接但不允许我连接到互联网

0

我认为这个问题已经针对不同的版本多次问过，但我仍然没有运气连接到互联网。

当我从 Wifi 设置连接到我的路由器时，它会在右上角给我一个小连接图标，但是当我尝试上网时，我得到了 no internet dino。

我已经尝试使用这些问题的所有答案：无线连接但无法访问互联网和无线网络疑难解答以及一些博客文章，但没有运气。

如果我跑步，nmcli device我会得到：

DEVICE          TYPE      STATE         CONNECTION
wlp1s0          wifi      connected     SpectrumSetup-90
virbr0          bridge    connected     virbr0
p2p-dev-wlp1s0  wifi-p2p  disconnected  --
lo              loopback  unmanaged     --
virbr0-nic      tun       unmanaged     --

当我尝试 ping google 的 IP 时，我得到：

PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
From 192.168.0.7 icmp_seq=1 Destination Host Unreachable
^C
--- 8.8.8.8 ping statistics ---
3 packets transmitted, 0 received, +1 errors, 100% packet loss, time 2008ms

当我跑步时，ifconfig我得到：

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  txgueuelen 1000  (Local Loopback)
        RX packets 77276  bytes 11254278 (11.2 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 77276  bytes 11254278 (11.2 MB)
        TX errors 0  dropped 0  overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:d3:76:87  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0  overruns 0  carrier 0  collisions 0

wlp1s0: flags=4163<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.1.253  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 2605:e000:151f:867c::174b  prefixlen 128  scopeid 0x0<global>
        inet6 2605:e000:151f:867c:e9a7:64a4:4936:d44d  prefixlen 64  scopeid 0x0<global>
        inet6 2605:e000:151f:867c:9c7f:1bcd:f035:752c  prefixlen 64  scopeid 0x0<global>
        inet6 2605:e000:151f:867c:eb72:697:939a:2674  prefixlen 64  scopeid 0x0<global>
        inet6 2605:e000:151f:867c:11a1:8b65:118f:1148  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::5780:e027:f44:97  prefixlen 64  scopeid 0x20<link>
        inet6 fe80::67ed:55d1:ee99:7806  prefixlen 64  scopeid 0x20<link>
        inet6 2605:e000:151f:867c:f18e:c473:751f:31c7  prefixlen 64  scopeid 0x0<global>
        inet6 2605:e000:151f:867c:720c:ec64:4404:a9c0  prefixlen 64  scopeid 0x0<global>
        ether 70:1c:e7:76:ce:0b  txqueuelen 1000  (Ethernet)
        RX packets 2053  bytes 180506 (180.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 8237  bytes 882378 (882.3 KB)
        TX errors 0  dropped 0  overruns 0  carrier 0  collisions 0

这是路由输出：

Kernel IP routing table
Destination    Gateway      Genmask        Flags  Metric  Ref  Use  Iface
default        192.168.0.1  0.0.0.0        UG     302     0    0    wlp1s0
link-local     0.0.0.0      255.255.0.0    U      1000    0    0    virbr0
192.168.0.0    0.0.0.0      255.255.255.0  U      302     0    0    wlp1s0
192.168.1.0    0.0.0.0      255.255.255.0  U      600     0    0    wlp1s0
192.168.122.0  0.0.0.0      255.255.255.0  U      0       0    0    virbr0

如果您要使用输出中的任何特定信息，请对问题发表评论，因为我在另一台计算机上运行它，我不得不手动复制它。

luisito_36

Asked: 2020-06-10 12:27:54 +0800 CST

在 Ubuntu 18.04.4 上安装双频 USB 适配器 2.4/5GHz Wi-Fi 时出现问题

1

双频 USB 适配器 2.4/5GHz 1200(866+300)Mbps 无线速度与 802.11ac

所以最近我购买了带有 CD 上驱动程序的双频 USB 适配器，以安装在 Windows、Mac 和 Linux 上。

我正在使用Ubuntu 18.04.4 LTS - 64 位

1. 将适配器连接到USB端口后，我检查了输入终端的端口lsusb，我得到以下信息：

Bus 001 Device 007: ID 0bda:b812 Realtek Semiconductor Corp.

2. sudo dkms status然后我什么也没得到。

3. 然后我在 CD 中名为 ( RTL81888192EUS_linux_v4.3.0.4_11485.20140519chmod +x install.sh ) 的文件夹中安装 Wi-Fi 2.4GHz，在终端中输入，然后sudo ./install.sh我得到以下结果：

##################################################
Realtek Wi-Fi driver Auto installation script
Novembor, 21 2011 v1.1.0
##################################################
Decompress the driver source tar ball:
    rtl8188EUS_linux_v4.3.0.4_11485.20140519.tar.gz
rtl8188EUS_linux_v4.3.0.4_11485.20140519/ (all files)

Authentication requested [root] for make clean:
cd hal/OUTSRC/ ; rm -fr */*.mod.c */*.mod */*.o */.*.cmd */*.ko
cd hal/OUTSRC/ ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko 
cd hal/led ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd hal ; rm -fr */*/*.mod.c */*/*.mod */*/*.o */*/.*.cmd */*/*.ko
cd hal ; rm -fr */*.mod.c */*.mod */*.o */.*.cmd */*.ko
cd hal ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd core/efuse ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd core ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd os_dep/linux ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd os_dep ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd platform ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
rm -fr Module.symvers ; rm -fr Module.markers ; rm -fr modules.order
rm -fr *.mod.c *.mod *.o .*.cmd *.ko *~
rm -fr .tmp_versions
Authentication requested [root] for make driver:
make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/4.15.0-101-generic/build M=/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519  modules
make[1]: Entering directory '/usr/src/linux-headers-4.15.0-101-generic'
CC [M]  /home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/core/rtw_cmd.o
In file included from /home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/osdep_service.h:41:0,
                 from /home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/drv_types.h:32,
                 from /home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/core/rtw_cmd.c:22:
/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/osdep_service_linux.h: In function ‘_init_timer’:
/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/osdep_service_linux.h:253:8: error: ‘_timer {aka struct timer_list}’ has no member named ‘data’
  ptimer->data = (unsigned long)cntx;
        ^~
/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/osdep_service_linux.h:254:2: error: implicit declaration of function ‘init_timer’; did you mean ‘_init_timer’? [-Werror=implicit-function-declaration]
  init_timer(ptimer);
  ^~~~~~~~~~
  _init_timer
In file included from /home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/drv_types.h:32:0,
             from /home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/core/rtw_cmd.c:22:
/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/osdep_service.h: In function ‘thread_enter’:
/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/osdep_service.h:342:2: error: implicit declaration of function ‘allow_signal’; did you mean ‘do_signal’? [-Werror=implicit-function-declaration]
  allow_signal(SIGTERM);
  ^~~~~~~~~~~~
  do_signal
/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/osdep_service.h: In function ‘flush_signals_thread’:
/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/osdep_service.h:352:6: error: implicit declaration of function ‘signal_pending’; did you mean ‘timer_pending’? [-Werror=implicit-function-declaration]
  if (signal_pending (current))
      ^~~~~~~~~~~~~~
      timer_pending
/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/include/osdep_service.h:354:3: error: implicit declaration of function ‘flush_signals’; did you mean ‘do_signal’? [-Werror=implicit-function-declaration]
   flush_signals(current);
   ^~~~~~~~~~~~~
   do_signal
cc1: some warnings being treated as errors
scripts/Makefile.build:330: recipe for target '/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/core/rtw_cmd.o' failed
make[2]: *** [/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519/core/rtw_cmd.o] Error 1
Makefile:1577: recipe for target '_module_/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519' failed
make[1]: *** [_module_/home/luisito/Documents/RTL81888192EUS_linux_v4.3.0.4_11485.20140519/driver/rtl8188EUS_linux_v4.3.0.4_11485.20140519] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-101-generic'
Makefile:1318: recipe for target 'modules' failed
make: *** [modules] Error 2
##################################################
Compile make driver error: 2
Please check error Mesg
##################################################

似乎该文件夹中不存在文件rtw_cmd.o，因此它已失败。

4.最后，我在 CD 中名为 ( RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407 ) 的文件夹中安装了 Wi-Fi 5GHz，在终端中输入chmod +x install.sh，然后sudo ./install.sh我得到以下结果：

##################################################
Realtek Wi-Fi driver Auto installation script
Novembor, 21 2011 v1.1.0
##################################################
Decompress the driver source tar ball:
    rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760.tar.gz
rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/ (all files)

Authentication requested [root] for make clean:
#make -C /lib/modules/4.15.0-101-generic/build M=/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760 clean
cd hal ; rm -fr */*/*/*.mod.c */*/*/*.mod */*/*/*.o */*/*/.*.cmd */*/*/*.ko
cd hal ; rm -fr */*/*.mod.c */*/*.mod */*/*.o */*/.*.cmd */*/*.ko
cd hal ; rm -fr */*.mod.c */*.mod */*.o */.*.cmd */*.ko
cd hal ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd core/efuse ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd core ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd os_dep/linux ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd os_dep ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
cd platform ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko
rm -fr Module.symvers ; rm -fr Module.markers ; rm -fr modules.order
rm -fr *.mod.c *.mod *.o .*.cmd *.ko *~
rm -fr .tmp_versions
Authentication requested [root] for make driver:
make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/4.15.0-101-generic/build M=/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760  modules
make[1]: Entering directory '/usr/src/linux-headers-4.15.0-101-generic'
  CC [M]  /home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/core/rtw_cmd.o
In file included from /home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/osdep_service.h:47:0,
                 from /home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/drv_types.h:32,
                 from /home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/core/rtw_cmd.c:22:
/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/osdep_service_linux.h: In function ‘_init_timer’:
/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/osdep_service_linux.h:288:8: error: ‘_timer {aka struct timer_list}’ has no member named ‘data’
  ptimer->data = (unsigned long)cntx;
        ^~
/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/osdep_service_linux.h:289:2: error: implicit declaration of function ‘init_timer’; did you mean ‘_init_timer’? [-Werror=implicit-function-declaration]
  init_timer(ptimer);
  ^~~~~~~~~~
  _init_timer
In file included from /home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/drv_types.h:32:0,
                 from /home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/core/rtw_cmd.c:22:
/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/osdep_service.h: In function ‘thread_enter’:
/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/osdep_service.h:375:2: error: implicit declaration of function ‘allow_signal’; did you mean ‘do_signal’? [-Werror=implicit-function-declaration]
  allow_signal(SIGTERM);
  ^~~~~~~~~~~~
  do_signal
/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/osdep_service.h: In function ‘flush_signals_thread’:
/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/osdep_service.h:385:6: error: implicit declaration of function ‘signal_pending’; did you mean ‘timer_pending’? [-Werror=implicit-function-declaration]
  if (signal_pending(current))
      ^~~~~~~~~~~~~~
      timer_pending
/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/include/osdep_service.h:386:3: error: implicit declaration of function ‘flush_signals’; did you mean ‘do_signal’? [-Werror=implicit-function-declaration]
   flush_signals(current);
   ^~~~~~~~~~~~~
   do_signal
cc1: some warnings being treated as errors
scripts/Makefile.build:330: recipe for target '/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/core/rtw_cmd.o' failed
make[2]: *** [/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760/core/rtw_cmd.o] Error 1
Makefile:1577: recipe for target '_module_/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760' failed
make[1]: *** [_module_/home/luisito/Documents/RTL8821AU_Linux_v5.2.6_21981_COEX20170206-6760.20170407/driver/rtl8821AU_WiFi_linux_v5.2.6_21981.20170407_COEX20170206-6760] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-101-generic'
Makefile:1877: recipe for target 'modules' failed
make: *** [modules] Error 2
##################################################
Compile make driver error: 2
Please check error Mesg
##################################################

似乎该文件夹中不存在文件rtw_cmd.o，因此它也失败了。

- 那么任何人都可以修复Wi-Fi 2.4GHz 和 5GHz 两个文件夹中的文件rtw_cmd.o吗？

文件夹位于以下链接中：Linux 的双频 USB 适配器 Wifi

vishal

Asked: 2019-08-23 01:12:57 +0800 CST

rtl8812au 上的 P2P 无法正常工作

3

如何使用 rtl8812au 驱动程序使用 P2P 操作？

我已经尝试了几乎所有在 github 和 linux home 中可用的驱动程序；他们都没有真正正常工作。

我发现唯一可用的驱动程序是aircrack-ng-rtl8812au

https://github.com/aircrack-ng/rtl8812au

但对于 P2P 群组运营来说，即使这样也存在一些问题。

boundule

Asked: 2018-08-12 04:33:54 +0800 CST

Realtek Wifi 无法在 Xubuntu 18.04 LTS 上运行

1

我刚刚在我新购买的低配置笔记本电脑上安装了最新的Xubuntu 18.04 LTS，旁边是 Windows 10（双启动）。安装一切正常，但 Wifi 不工作。有时（很少）我能够连接到我的 wifi 路由器，但网络强度太强了。我的笔记本电脑使用realtek 驱动程序（可能是 RTL8723BU）进行 wifi。它在 Windows 10 系统中运行良好。从 inxi -Fxz 命令我发现我的网卡没有以某种方式安装。在 Xumuntu，我现在完全没有互联网。在这里我想补充一点，我在这台笔记本电脑中没有有线 LAN 选项。

我该如何修复/解决这个 wifi / 网卡问题？

这是inxi -Fxz的输出

boundule@BUDDY:~$ inxi -Fxz
System:    Host: BUDDY Kernel: 4.15.0-30-generic x86_64 bits: 64 gcc: 7.3.0 Desktop: Xfce 4.12.3 (Gtk 2.24.31)
           Distro: Ubuntu 18.04.1 LTS
Machine:   Device: laptop System: Walton product: Prelude R1 serial: N/A
           Mobo: N/A model: N/A serial: N/A
           UEFI: American Megatrends v: WH-BI-14-Y116AR120-105-C date: 03/13/2018
CPU:       Dual core Intel Celeron N3350 (-MCP-) arch: N/A cache: 1024 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 4377
           clock speeds: max: 2400 MHz 1: 869 MHz 2: 861 MHz
Graphics:  Card: Intel Device 5a85 bus-ID: 00:02.0
           Display Server: x11 (X.Org 1.19.6 ) drivers: modesetting (unloaded: fbdev,vesa)
           Resolution: [email protected]
           OpenGL: renderer: Mesa DRI Intel HD Graphics 500 (Broxton 2x6)
           version: 4.5 Mesa 18.0.5 Direct Render: Yes
Audio:     Card Intel Celeron N3350/Pentium N4200/Atom E3900 Series Audio Cluster
           driver: snd_hda_intel bus-ID: 00:0e.0
           Sound: Advanced Linux Sound Architecture v: k4.15.0-30-generic
Network:   Card: Failed to Detect Network Card!
Drives:    HDD Total Size: 1008.2GB (1.2% used)
           ID-1: /dev/sda model: HGST_HTS541010B7 size: 1000.2GB
           ID-2: USB /dev/sdb model: Transcend_8GB size: 8.0GB
Partition: ID-1: / size: 19G used: 4.6G (27%) fs: ext4 dev: /dev/sda7
           ID-2: /home size: 35G used: 51M (1%) fs: ext4 dev: /dev/sda9
           ID-3: swap-1 size: 6.14GB used: 0.00GB (0%) fs: swap dev: /dev/sda8
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 49.0C mobo: N/A
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 166 Uptime: 37 min Memory: 397.8/3778.5MB Init: systemd runlevel: 5 Gcc sys: 7.3.0
           Client: Shell (bash 4.4.191) inxi: 2.3.56

这是lspci 的输出；lsusb

00:00.0 Host bridge: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series Host Bridge (rev 0b)
00:00.1 Signal processing controller: Intel Corporation Device 5a8c (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Device 5a85 (rev 0b)
00:0e.0 Audio device: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series Audio Cluster (rev 0b)
00:0f.0 Communication controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series Trusted Execution Engine (rev 0b)
00:12.0 SATA controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series SATA AHCI Controller (rev 0b)
00:15.0 USB controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series USB xHCI (rev 0b)
00:16.0 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #1 (rev 0b)
00:16.1 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #2 (rev 0b)
00:16.2 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #3 (rev 0b)
00:16.3 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #4 (rev 0b)
00:17.0 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #5 (rev 0b)
00:17.1 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #6 (rev 0b)
00:17.2 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #7 (rev 0b)
00:17.3 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #8 (rev 0b)
00:18.0 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series HSUART Controller #1 (rev 0b)
00:18.1 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series HSUART Controller #2 (rev 0b)
00:18.2 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series HSUART Controller #3 (rev 0b)
00:18.3 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series HSUART Controller #4 (rev 0b)
00:19.0 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series SPI Controller #1 (rev 0b)
00:19.1 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series SPI Controller #2 (rev 0b)
00:19.2 Signal processing controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series SPI Controller #3 (rev 0b)
00:1c.0 SD Host controller: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series eMMC Controller (rev 0b)
00:1f.0 ISA bridge: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series Low Pin Count Interface (rev 0b)
00:1f.1 SMBus: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series SMBus Controller (rev 0b)
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 058f:5608 Alcor Micro Corp. 
Bus 001 Device 004: ID 0bda:b720 Realtek Semiconductor Corp. 
Bus 001 Device 003: ID 09da:c10a A4Tech Co., Ltd. 
Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 006: ID 058f:6387 Alcor Micro Corp. Flash Drive
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

这是usb-devices的输出| awk '/b720/' RS=

T:  Bus=01 Lev=01 Prnt=01 Port=06 Cnt=04 Dev#=  4 Spd=480 MxCh= 0
D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0bda ProdID=b720 Rev=02.00
S:  Manufacturer=Realtek
S:  Product=802.11n WLAN Adapter
S:  SerialNumber=00e04c000001
C:  #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I:  If#= 2 Alt= 0 #EPs= 6 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8xxxu

运行命令并重新启动后问题仍然存在。

boundule@BUDDY:~$ sudo apt install build-essential dkms
[sudo] password for boundule: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
build-essential is already the newest version (12.4ubuntu1).
build-essential set to manually installed.
Suggested packages:
  menu
The following packages will be upgraded:
  dkms
1 upgraded, 0 newly installed, 0 to remove and 18 not upgraded.
Need to get 68.0 kB of archives.
After this operation, 19.5 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://bd.archive.ubuntu.com/ubuntu bionic-updates/main amd64 dkms all 2.3-3ubuntu9.2 [68.0 kB]
Fetched 68.0 kB in 3s (19.6 kB/s)
(Reading database ... 185574 files and directories currently installed.)
Preparing to unpack .../dkms_2.3-3ubuntu9.2_all.deb ...
Unpacking dkms (2.3-3ubuntu9.2) over (2.2.0.3-2ubuntu11) ...
Setting up dkms (2.3-3ubuntu9.2) ...
Installing new version of config file /etc/dkms/framework.conf ...
Installing new version of config file /etc/dkms/template-dkms-mkdeb/debian/control ...
Installing new version of config file /etc/kernel/prerm.d/dkms ...
Processing triggers for man-db (2.8.3-2) ...
boundule@BUDDY:~$ git clone https://github.com/lwfinger/rtl8723bu.git
Cloning into 'rtl8723bu'...
remote: Counting objects: 2438, done.
remote: Total 2438 (delta 0), reused 0 (delta 0), pack-reused 2438
Receiving objects: 100% (2438/2438), 7.41 MiB | 63.00 KiB/s, done.
Resolving deltas: 100% (1960/1960), done.
boundule@BUDDY:~$ cd rtl8723bu
boundule@BUDDY:~/rtl8723bu$ source dkms.conf
boundule@BUDDY:~/rtl8723bu$ sudo mkdir /usr/src/$PACKAGE_NAME-$PACKAGE_VERSION
boundule@BUDDY:~/rtl8723bu$ sudo cp -r core hal include os_dep platform dkms.conf Makefile rtl8723b_fw.bin /usr/src/$PACKAGE_NAME-$PACKAGE_VERSION
boundule@BUDDY:~/rtl8723bu$ sudo dkms add $PACKAGE_NAME/$PACKAGE_VERSION

Creating symlink /var/lib/dkms/rtl8723bu/4.3.6.11_12942.20141204_BTCOEX20140507-4E40/source ->
                 /usr/src/rtl8723bu-4.3.6.11_12942.20141204_BTCOEX20140507-4E40

DKMS: add completed.
boundule@BUDDY:~/rtl8723bu$ sudo dkms autoinstall $PACKAGE_NAME/$PACKAGE_VERSION

Kernel preparation unnecessary for this kernel.  Skipping...

Building module:
cleaning build area...
make -j2 KERNELRELEASE=4.15.0-30-generic -C /lib/modules/4.15.0-30-generic/build M=/var/lib/dkms/rtl8723bu/4.3.6.11_12942.20141204_BTCOEX20140507-4E40/build..........................
Signing module:
Generating a new Secure Boot signing key:
Generating a 2048 bit RSA private key
...............................................+++
...........+++
writing new private key to '/var/lib/shim-signed/mok/MOK.priv'
-----
 - /var/lib/dkms/rtl8723bu/4.3.6.11_12942.20141204_BTCOEX20140507-4E40/4.15.0-30-generic/x86_64/module/rtl8723bu.ko
Secure Boot not enabled on this system.
cleaning build area...

DKMS: build completed.

rtl8723bu.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/4.15.0-30-generic/updates/dkms/

depmod......

DKMS: install completed.

Kernel preparation unnecessary for this kernel.  Skipping...

Building module:
cleaning build area...
make -j2 KERNELRELEASE=4.15.0-30-generic -C /lib/modules/4.15.0-30-generic/build M=/var/lib/dkms/rtlwifi-new/0.10/build....(bad exit status: 2)
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/rtlwifi-new-dkms.0.crash'
Error! Bad return status for module build on kernel: 4.15.0-30-generic (x86_64)
Consult /var/lib/dkms/rtlwifi-new/0.10/build/make.log for more information.
boundule@BUDDY:~/rtl8723bu$

Ubuntu 20.04 说 Wi-Fi 已连接但不允许我连接到互联网

在 Ubuntu 18.04.4 上安装双频 USB 适配器 2.4/5GHz Wi-Fi 时出现问题

rtl8812au 上的 P2P 无法正常工作

Realtek Wifi 无法在 Xubuntu 18.04 LTS 上运行

如何运行 .sh 脚本？

如何安装 .tar.gz（或 .tar.bz2）文件？

如何列出所有已安装的软件包

无法锁定管理目录 (/var/lib/dpkg/) 是另一个进程在使用它吗？

问题[wifi-direct](ubuntu)