Ubuntu14.04 wifi连接不了，折腾了好几天都不行啊，求救

[sankeonline]

relaybot@ubuntu:~$ uname -a
Linux ubuntu 3.19.0-37-generic #42~14.04.1-Ubuntu SMP Mon Nov 23 15:13:51 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
relaybot@ubuntu:~$ lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Root Complex
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8670D]
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Trinity HDMI Audio Controller
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 09)
00:10.1 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 09)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 40)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11)
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 11)
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11)
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 11)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 16)
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 01)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] FCH PCI Bridge (rev 40)
00:15.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 0)
00:15.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 2)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 5
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
relaybot@ubuntu:~$ sudo lshw -c network
[sudo] password for relaybot:
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 0c
serial: 78:24:af:9d:25:18
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:35 ioport:e000(size=256) memory:fea00000-fea00fff memory:f0000000-f0003fff
*-network
description: Wireless interface
physical id: 1
bus info: usb@5:1
logical name: wlan0
serial: e8:4e:06:33:34:06
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=rtl8192cu driverversion=3.19.0-37-generic firmware=N/A ip=10.0.0.7 link=yes multicast=yes wireless=IEEE 802.11bgn
relaybot@ubuntu:~$ iwconfig
eth0 no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:"TP-Link 54639"
Mode:Managed Frequency:2.442 GHz Access Point: 10:0D:7F:90:65:CC
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=54/70 Signal level=-56 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:2288 Missed beacon:0

lo no wireless extensions.

[vickycq]

你的无线网卡是基于 USB 的 rtl8192cu，所以 lspci 没有列出

装这个驱动试试：

代码： 全选

sudo add-apt-repository ppa:hanipouspilot/rtlwifi
sudo apt-get update
sudo apt-get install rtlwifi-new-dkms

这里的 rtlwifi-new 由 lwfinger 维护，质量有一定的提升。
gh repo https://github.com/lwfinger/rtlwifi_new/

另外还有一些网友维护的 rtl8192cu 驱动，如 https://github.com/pvaret/rtl8192cu-fixes
也可尝试

参考
viewtopic.php?f=116&t=475102
viewtopic.php?f=116&t=474243
viewtopic.php?f=116&t=474566

[umbradyj]

vickycq, 大神,能借楼请教你个问题吗, 我的电脑是华硕K40ID 网卡是AR9285 用VMware 安装的ubuntu14.04 网卡驱动装不上.同样折腾了好几天了.网上找了很多方法都不行

[sankeonline]

多谢，我晚上试一下。

你的无线网卡是基于 USB 的 rtl8192cu，所以 lspci 没有列出

装这个驱动试试：

代码： 全选

sudo add-apt-repository ppa:hanipouspilot/rtlwifi
sudo apt-get update
sudo apt-get install rtlwifi-new-dkms

这里的 rtlwifi-new 由 lwfinger 维护，质量有一定的提升。
gh repo https://github.com/lwfinger/rtlwifi_new/

另外还有一些网友维护的 rtl8192cu 驱动，如 https://github.com/pvaret/rtl8192cu-fixes
也可尝试

参考
viewtopic.php?f=116&t=475102
viewtopic.php?f=116&t=474243
viewtopic.php?f=116&t=474566

[vickycq]

vickycq, 大神,能借楼请教你个问题吗, 我的电脑是华硕K40ID 网卡是AR9285 用VMware 安装的ubuntu14.04 网卡驱动装不上.同样折腾了好几天了.网上找了很多方法都不行

这其实是虚拟机问题，不是传统意义上的 AR9285 网卡问题
在 VMWare 的虚拟网络编辑器中 - 桥接模式 - 明确选择一块网卡，而不要使用默认的‘自动’

[photor]

你的无线网卡是基于 USB 的 rtl8192cu，所以 lspci 没有列出

装这个驱动试试：

代码： 全选

sudo add-apt-repository ppa:hanipouspilot/rtlwifi
sudo apt-get update
sudo apt-get install rtlwifi-new-dkms

这里的 rtlwifi-new 由 lwfinger 维护，质量有一定的提升。
gh repo https://github.com/lwfinger/rtlwifi_new/

另外还有一些网友维护的 rtl8192cu 驱动，如 https://github.com/pvaret/rtl8192cu-fixes
也可尝试

参考
viewtopic.php?f=116&t=475102
viewtopic.php?f=116&t=474243
viewtopic.php?f=116&t=474566