RealTek RTL8188CE WiFi适配器连接不稳定

可能重复问题: 12.10 x64 - RTL8188CE - 间歇/慢的互联网连接 我最近购买了一台预装有Ubuntu 11.10的新的system76笔记本电脑。我在无线连接方面遇到了一些问题。我的无线网络连接似乎时断时续。这不是我的网络问题,因为我在多个WiFi网络上以及不同距离和报告的链接质量上都遇到了相同的问题。
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

iwconfig:
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

任何帮助都将不胜感激。上次处理无线问题时,最常见的解决方案是使用 NDIS 封装器,而我显然已经过时了。

请参考http://askubuntu.com/questions/95360/how-to-get-a-stable-wlan-connection-with-a-lenovo-x121e,这里有一个类似的问题描述,只不过这次是关于联想x121e笔记本电脑。还有http://askubuntu.com/questions/97308/ubuntu-11-10-wi-fi-connection-almost-stops-working-after-some-time,这是关于华硕PCE-N15的。问题始终都是RTL8188CE。 - Thomas
TRL8188CE的支持在12.04版本中似乎好了很多。 - Thomas
2个回答

看起来非常像this bug,在Oneiric上不稳定,在Precise上几乎从不工作。

我最近也遇到了类似的问题,使用的是东芝c655d-s5300。在grub菜单中,我回滚到了旧内核版本,现在一切正常运作。以下是目前正常工作的部分:
   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

它在3.0.0.14-generic内核上是不工作的。