Difference between revisions of "ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II"

From ThinkWiki
Jump to: navigation, search
(Undo revision 53263 by Defriesse (talk))
 
(49 intermediate revisions by 15 users not shown)
Line 1: Line 1:
The ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II appears to be a Realtek 8191 wireless card.  Currently there are no linux drivers for this card (at least none that I can find). [http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-72697]
+
__NOTOC__
 +
{| width="100%"
 +
|style="vertical-align:top" |
 +
<div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;">
 +
== ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II ==
 +
This is a Mini-PCI Express WiFi Adapter, supported by a driver downloadable from Realtek.
  
There seems to be some progress on the linux driver for this: [https://bugs.launchpad.net/ubuntu/+source/linux/+bug/401126?comments=all]
 
 
== Features ==
 
== Features ==
 +
* Chipset: Realtek RTL8192SE / RTL8188CE
 +
* IEEE Standards: 802.11b, 802.11g, 802.11n
 +
* 1x2 MIMO
 +
* PCI ID:
 +
** RTL8192SE: 10ec:8172
 +
** RTL8188CE: 10ec:8176
 +
</div>
 +
|style="vertical-align:top" |
 +
[[image:RealtekWiFi.jpg|ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II]]<br/>
 +
|}
 +
=== Lenovo Partnumbers ===
 +
* 04W1409
  
 +
== Linux support ==
 +
This chip is supported by the rtlwifi/rtl8192se driver, which was [http://linuxwireless.org/News/2011-07-22 included in kernel in 3.0]. There are two other options available, a Linux driver available for download from Realtek, or ndiswrapper.
 +
(Ubuntu 10.4 support it now).
  
 +
{{WARN|If you are not comfortable with running development code and have the option, order your ThinkPad with a different WiFi adapter. All other available WiFi options are supported by in-kernel drivers in modern Linux distributions}}
  
 +
=== rtlwifi ===
  
== Identification ==
+
The rtlwifi driver which supports this chip was included in kernel 3.0. In some cases the RealTek driver below can be more reliable than the kernel driver.
  
lspci -vv
+
=== Realtek Linux driver ===
        03:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device 8172 (rev 10)
+
 
        Subsystem: Realtek Semiconductor Co., Ltd. Device e020
+
The Realtek Linux driver for this chip can be downloaded from the Realtek [http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&ProdID=226&DownTypeID=3&GetDown=false&Downloads=true#2281 website]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
+
 
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
+
More information about using the Realtek native driver in Ubuntu: [https://bugs.launchpad.net/ubuntu/+source/linux/+bug/401126?comments=all]
        Latency: 0, Cache Line Size: 64 bytes
+
 
        Interrupt: pin A routed to IRQ 11
+
Please note: use of this driver on Lenovo systems results in unpredictable fatal crashes on some systems!  It's is *not* advised to choose this driver. 
        Region 0: I/O ports at 3000 [size=256]
+
 
        Region 1: Memory at f4200000 (32-bit, non-prefetchable) [size=16K]
+
One method that appears to drastically reduce the crashes and connection drops is to comment out "-DENABLE_LPS" from the Makefiles while building the Realtek Linux driver. This also reduces the "noise" in the syslog kernel messages generated by LPS. However, it may reduce the battery life since LPS is an acronym for Low Power State.
        Capabilities: [40] Power Management version 3
+
 
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
+
Known problems:
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
+
  * Connections randomly drop out after a few minutes (seems to be fixed in version 015)
        Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
+
  This problem has been observed with version 015 too. Realtek has been contacted about the problem.
                Address: 0000000000000000 Data: 0000
+
* When using WPA Enterprise, entire system will freeze after a few minutes, requiring reboot
        Capabilities: [70] Express (v1) Legacy Endpoint, MSI 00
+
* Freezes also happen with Ad-Hoc mode from time to time
                DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
+
 
                        ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
+
The RealTek driver maybe packaged for your distrobution, for example [http://aur.archlinux.org/packages.php?ID=46797 in the AUR for Arch].
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
+
 
                        RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
+
=== ndiswrapper ===
                        MaxPayload 128 bytes, MaxReadReq 512 bytes
+
{{NOTE|The use of ndiswrapper is not recommended}}
                DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
+
 
                LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us
+
More information on using the Windows drivers with Ndiswrapper can be found here:[http://ubuntuforums.org/showthread.php?t=1329254].
                        ClockPM- Suprise- LLActRep- BwNot-
+
                LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
+
                LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
+
        Capabilities: [100] Advanced Error Reporting <?>
+
        Capabilities: [140] Virtual Channel <?>
+
        Capabilities: [160] Device Serial Number 00-e0-4c-ff-fe-22-55-88
+
  
 
=== ThinkPads this card may be found in ===
 
=== ThinkPads this card may be found in ===
 +
* {{Edge 13"}} (AMD)
 +
* {{Edge 14"}}, {{Edge 15"}}
 +
* {{L412}}, {{L512}}
 
* {{R400}}, {{R500}}
 
* {{R400}}, {{R500}}
* {{T400}}, {{T500}}
+
* {{SL410}}, {{SL510}}
* {{W500}},  
+
* {{T400}}, {{T410}}, {{T410s}}, {{T500}}, {{T510}}
* {{X200}}, {{X200s}}, {{X200 Tablet}}
+
* {{X100e}}, {{X200s}}, {{X200 Tablet}}, {{X201}}, {{X220}}
 
+
  
 
[[Category:Components]]
 
[[Category:Components]]

Latest revision as of 01:17, 29 December 2011

ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II

This is a Mini-PCI Express WiFi Adapter, supported by a driver downloadable from Realtek.

Features

  • Chipset: Realtek RTL8192SE / RTL8188CE
  • IEEE Standards: 802.11b, 802.11g, 802.11n
  • 1x2 MIMO
  • PCI ID:
    • RTL8192SE: 10ec:8172
    • RTL8188CE: 10ec:8176

ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II

Lenovo Partnumbers

  • 04W1409

Linux support

This chip is supported by the rtlwifi/rtl8192se driver, which was included in kernel in 3.0. There are two other options available, a Linux driver available for download from Realtek, or ndiswrapper. (Ubuntu 10.4 support it now).

ATTENTION!
If you are not comfortable with running development code and have the option, order your ThinkPad with a different WiFi adapter. All other available WiFi options are supported by in-kernel drivers in modern Linux distributions

rtlwifi

The rtlwifi driver which supports this chip was included in kernel 3.0. In some cases the RealTek driver below can be more reliable than the kernel driver.

Realtek Linux driver

The Realtek Linux driver for this chip can be downloaded from the Realtek website

More information about using the Realtek native driver in Ubuntu: [1]

Please note: use of this driver on Lenovo systems results in unpredictable fatal crashes on some systems! It's is *not* advised to choose this driver.

One method that appears to drastically reduce the crashes and connection drops is to comment out "-DENABLE_LPS" from the Makefiles while building the Realtek Linux driver. This also reduces the "noise" in the syslog kernel messages generated by LPS. However, it may reduce the battery life since LPS is an acronym for Low Power State.

Known problems:

* Connections randomly drop out after a few minutes (seems to be fixed in version 015)
  This problem has been observed with version 015 too. Realtek has been contacted about the problem.
* When using WPA Enterprise, entire system will freeze after a few minutes, requiring reboot
* Freezes also happen with Ad-Hoc mode from time to time

The RealTek driver maybe packaged for your distrobution, for example in the AUR for Arch.

ndiswrapper

NOTE!
The use of ndiswrapper is not recommended

More information on using the Windows drivers with Ndiswrapper can be found here:[2].

ThinkPads this card may be found in