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[Bug 1002884] Re: Slow 3945abg - 12.04

 

Dvanzo, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.12

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

** Tags added: needs-kernel-logs

** Changed in: linux (Ubuntu)
       Status: Triaged => Incomplete

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https://bugs.launchpad.net/bugs/1002884

Title:
  Slow 3945abg - 12.04

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

Bug description:
  Hi!,

  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 15.32.2.9

  iwconfig
  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????

  Regards,

  Daniel

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