我的台式机有一个 TP-LINK TL-WN823N 无线 USB 棒（Realtek 模块 8192cu）。我无法让网络管理员使用它。
Wicd说没有找到无线网络，标准网络监视器说无线已断开。我已经执行了 的指令https://wiki.debian.org/rtl819x。在底部，我有/etc/apt/sources.list文件的内容并已运行apt-get update。（在执行这些测试时，计算机是通过以太网电缆连接的）
从看iwconfig
lo no wireless extensions.
wlan1 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:off
eth0 no wireless extensions.
ifconfig wlan1:
wlan1 Link encap:Ethernet HWaddr c4:e9:84:16:63:ed
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
ifup wlan1:
Ignoring unknown interface wlan1=wlan1.
lsb_release -a操作系统版本的输出：
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 7.9 (wheezy)
Release: 7.9
Codename: wheezy
相关输出lsusb：
Bus 001 Device 004: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
输出apt-cache search Realtek：
flashrom - Identify, read, write, erase, and verify BIOS/ROM/flash chips
nictools-pci - Diagnostic tools for many PCI ethernet cards
firmware-realtek - Binary firmware for Realtek wired and wireless network adapters
从做起，apt-get install firmware-realtek：
Reading package lists... Done
Building dependency tree
Reading state information... Done
firmware-realtek is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
相关输出dmesg：
[ 19.751049] rtl8192cu: MAC auto ON okay!
[ 19.783738] rtl8192cu: Tx queue select: 0x05
[ 19.784619] rtl8192c_common: Loading firmware file rtlwifi/rtl8192cufw.bin
[ 20.202574] ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 20.499417] r8169 0000:02:00.0: firmware: agent loaded rtl_nic/rtl8168e-3.fw into memory
尝试启动 wlan0，方法是ifconfig wlan0 up：
wlan0: ERROR while getting interface flags: No such device
但ifconfig wlan1 up可以正常工作，不会出现任何错误
从看lsmod | grep rtl：
rtl8192cu 74897 0
rtlwifi 81393 1 rtl8192cu
rtl8192c_common 52602 1 rtl8192cu
mac80211 192806 3 rtl8192c_common,rtlwifi,rtl8192cu
cfg80211 137243 2 mac80211,rtlwifi
usbcore 128741 5 ehci_hcd,usbhid,rtlwifi,rtl8192cu
内容/etc/network/interfaces：
# The loopback network interface
auto lo
iface lo inet loopback
内容/etc/apt/sources.list
# deb cdrom:[Debian GNU/Linux 7.7.0 _Wheezy_ - Official amd64 NETINST Binary-1 20141018-13:04]/ wheezy main
# deb cdrom:[Debian GNU/Linux 7.7.0 _Wheezy_ - Official amd64 NETINST Binary-1 20141018-13:04]/ wheezy main
deb http://ftp.uk.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.uk.debian.org/debian/ wheezy main contrib non-free
deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-free
# wheezy-updates, previously known as 'volatile'
deb http://ftp.uk.debian.org/debian/ wheezy-updates main contrib non-free
deb-src http://ftp.uk.debian.org/debian/ wheezy-updates main contrib non-free
deb http://download.virtualbox.org/virtualbox/debian wheezy contrib
# Debian 7 "Wheezy"
deb http://http.debian.net/debian/ wheezy main contrib non-free
答案1
编辑配置文件wicd以将其定向到wlan1，因为它正在注册但不可见。
sudo nano /etc/wicd/manager-settings.conf
并设置代替wlan0ornone
wireless_interface = wlan1