Public bug reported:
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
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1002884
Title:
Slow 3945abg - 12.04
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