RealTek RTL8188CE WiFi 适配器无法可靠连接

Question

可能重复：
12.10 x64 - RTL8188CE - 间歇性/缓慢的互联网连接

我最近买了一台新的 system76 笔记本电脑，它预装了 Ubuntu 11.10。我的无线连接有问题。似乎我与无线网络的连接不断进出。这不是我的网络——我在多个 WiFi 网络和不同距离上看到了同样的问题，并报告了链接质量。

操作系统版本：Ubuntu 11.10 oneiric
内核版本：3.0.0-14-generic

lspci：

lspci -nnk | grep -iA2 net

04:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176] (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:9196]
Kernel driver in use: rtl8192ce
--
05:00.0 Ethernet controller [0200]: JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller [197b:0250] (rev 05)
Subsystem: CLEVO/KAPOK Computer Device [1558:2500]
Kernel driver in use: jme

配置：

iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"peppermintpatty"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 98:FC:11:6C:E0:22   
          Bit Rate=72.2 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
      Link Quality=49/70  Signal level=-61 dBm  
      Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
      Tx excessive retries:0  Invalid misc:1103   Missed beacon:0

lshw：

sudo lshw -class network
  *-network               
       description: Wireless interface
       product: RTL8188CE 802.11b/g/n WiFi Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlan0
       version: 01
       serial: 00:1c:7b:a1:95:04
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8192ce driverversion=3.0.0-14-generic firmware=N/A ip=192.168.1.106 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:18 ioport:e000(size=256) memory:f7d00000-f7d03fff
  *-network
       description: Ethernet interface
       product: JMC250 PCI Express Gigabit Ethernet Controller
       vendor: JMicron Technology Corp.
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: eth0
       version: 05
       serial: 00:90:f5:c0:42:b3
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm pciexpress msix msi bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=jme driverversion=1.0.8 duplex=half latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:56 memory:f7c20000-f7c23fff ioport:d100(size=128) ioport:d000(size=256) memory:f7c10000-f7c1ffff memory:f7c00000-f7c0ffff

任何帮助，将不胜感激。我上次处理无线问题时，最给定的解决方案是 NDIS 包装器，而且我似乎已经过时了。

Answer 1

看起来很像这个 bug，在 Oneiric 上很不稳定，但在 Precise 上几乎从不工作。

Answer 2

我最近在使用东芝 c655d-s5300 时遇到了类似的问题。我在 grub 菜单中恢复到较旧的内核，现在它可以工作了。这是正在起作用的：

   description: Wireless interface
   product: RTL8188CE 802.11b/g/n WiFi Adapter
   vendor: Realtek Semiconductor Co., Ltd.
   physical id: 0
   bus info: pci@0000:02:00.0
   logical name: wlan0
   version: 01
   serial: e0:ca:94:5c:21:7a
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
   configuration: broadcast=yes driver=rtl8192ce driverversion=3.0.0-13-generic firmware=N/A ip=192.168.1.100 latency=0 link=yes multicast=yes wireless=IEEE 802.11b

它不适用于 3.0.0.14 通用内核。