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#1 2008-11-14 21:55:00

Registered: 2007-09-26
Posts: 38

rtl8180 slow in .27 kernel

I've upgraded arch to .27.5 kernel and my rtl8180 wifi seems choppy transferring stuff through lan (used both sftp and samba). With .26 kernels and with winxp it was ok....

Here is a graph: … ta1ju8.png

normally I get > 1mB/s always.
Now it seems to block sometimes... and I always get 400kB/s avarage...

(note that the graph is taken from another pc so that it is a download speed    second pc ---->  rtl8180

maybe some iwconfig options (power saving) were enabled upgrading?

here is iwconfig output:

wlan0     IEEE 802.11bg  ESSID:"wlan-ap"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:04:ED:63:8F:64   
          Bit Rate=24 Mb/s   Tx-Power=27 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr=2352 B   
          Encryption key:off
          Power Management:off
          Link Quality=27/100  Signal level:16/65  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

Last edited by Cornholio (2008-11-14 21:56:58)


#2 2009-01-07 18:50:16

From: Belgium
Registered: 2008-12-14
Posts: 54

Re: rtl8180 slow in .27 kernel

try the solution from my rtl8187(L).

ifconfig wlan0 down
iwconfig wlan0 rate 5.5M fixed
*iwconfig wlan0 essid .... key ....
  dhcpd wlan0
*or use netcfg2 profile if configured

New things emerge when they were forgotten.


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