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[Bug 1002884] Re: Slow 3945abg - 12.04


Penalvch, please close this bug... The upstream kernel bug was closed
(intel doesn't support this card model anymore). So, its a shame, but a
perfect working notebook with version 10.04 has this problem with
13.10... It is not Ubuntu fault.



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  Slow 3945abg - 12.04

Status in The Linux Kernel:
Status in “linux” package in Ubuntu:

Bug description:

  I was suffering slow wifi transfers with my Vostro 1500 (Intel
  3945abg). 10.04 was ok, but since then, no mather what, the speed has
  been awfull. Recently upgraded to 12.04, but no-luck. Transfers
  between 40KBs and 70KBs... Wired connections to the same router allow
  me to connect up to 320KBs.... I already did everything a could
  without success... You can see previous info at bug #621265

  My info:

  uname -a
  Linux Vostro-1500 3.2.0-24-generic-pae #38-Ubuntu SMP Tue May 1 16:40:26 UTC 2012 i686 i686 i386 GNU/Linux

  lsb_release -rd
  Description:	Ubuntu 12.04 LTS
  Release:	12.04

  dmesg|grep 3945
  [   15.120687] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, in-tree:s
  [   15.120691] iwl3945: Copyright(c) 2003-2011 Intel Corporation
  [   15.120764] iwl3945 0000:0c:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
  [   15.120781] iwl3945 0000:0c:00.0: setting latency timer to 64
  [   15.205631] iwl3945 0000:0c:00.0: Tunable channels: 11 802.11bg, 13 802.11a channels
  [   15.205637] iwl3945 0000:0c:00.0: Detected Intel Wireless WiFi Link 3945ABG
  [   15.205798] iwl3945 0000:0c:00.0: irq 44 for MSI/MSI-X
  [   15.290958] ieee80211 phy0: Selected rate control algorithm 'iwl-3945-rs'
  [   15.817051] iwl3945 0000:0c:00.0: loaded firmware version

  lo        no wireless extensions.

  wlan0     IEEE 802.11abg  ESSID:"WiFiCasa"  
            Mode:Managed  Frequency:2.412 GHz  Access Point: 00:22:33:FC:6A:50   
            Bit Rate=2 Mb/s   Tx-Power=15 dBm   
            Retry  long limit:7   RTS thr:off   Fragment thr:off
            Power Management:off
            Link Quality=50/70  Signal level=-60 dBm  
            Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
            Tx excessive retries:0  Invalid misc:37421   Missed beacon:0

  eth0      no wireless extensions.

  lspci -vnn |grep -A3 Wireless
  0c:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection [8086:4222] (rev 02)
  	Subsystem: Intel Corporation Device [8086:1020]
  	Flags: bus master, fast devsel, latency 0, IRQ 44
  	Memory at f9fff000 (32-bit, non-prefetchable) [size=4K]

  lsmod|grep iwl3945
  iwl3945                73152  0 
  iwl_legacy             71134  1 iwl3945
  mac80211              436455  2 iwl3945,iwl_legacy
  cfg80211              178679  3 iwl3945,iwl_legacy,mac80211

  any idea????



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