Hi. My name is martin and i have some problems with my ubuntu 13.10. My notebook is a Dell XPS m1530, with intel 3945ABG wifi card.
This problem appears a few days ago, i do not know if it began after an apt-get upgrade of any package.
The connection works intermittently slow. I can reproduce the problem when i want by suspending and resuming ubuntu.
Now, i need to reset Wifi connection to obtain full speed.
If i use a wired connection i have no problems. In dual boot with windows 7, i have no problems with wifi.
Here you are some screenshots so you can see the difference.
Screenshot from 2014-02-03 16:03:43.png
Screenshot from 2014-02-03 16:05:31.png
uname -mr
Code:
3.8.0-27-generic i686
lspci
Code:
pepe@pepe:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 0c)
00:1a.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
00:1a.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02)
00:1d.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f2)
00:1f.0 ISA bridge: Intel Corporation 82801HM (ICH8M) LPC Interface Controller (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) SATA Controller [AHCI mode] (rev 02)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
01:00.0 VGA compatible controller: NVIDIA Corporation G84M [GeForce 8600M GT] (rev a1)
03:09.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
03:09.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
03:09.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12)
03:09.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)
09:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller (rev 12)
0b:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
lsusb
Code:
pepe@pepe:~$ lsusb
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 005: ID 0a5c:4503 Broadcom Corp. Mouse (Boot Interface Subclass)
Bus 007 Device 004: ID 0a5c:4502 Broadcom Corp. Keyboard (Boot Interface Subclass)
Bus 007 Device 003: ID 413c:8126 Dell Computer Corp. Wireless 355 Bluetooth
Bus 007 Device 002: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 05a9:2640 OmniVision Technologies, Inc. OV2640 Webcam
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0483:2016 STMicroelectronics Fingerprint Reader
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
ifconfig
Code:
pepe@pepe:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1d:09:5c:51:23
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:6487 errors:0 dropped:0 overruns:0 frame:0
TX packets:6502 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3662814 (3.6 MB) TX bytes:1153781 (1.1 MB)
Interrupt:16
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:5614 errors:0 dropped:0 overruns:0 frame:0
TX packets:5614 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:546447 (546.4 KB) TX bytes:546447 (546.4 KB)
wlan0 Link encap:Ethernet HWaddr 00:1c:6c:7c:41:2c
inet addr:192.168.1.103 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21f:3cff:fe7c:418c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:237256 errors:0 dropped:0 overruns:0 frame:0
TX packets:169905 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:274595416 (274.5 MB) TX bytes:25927009 (25.9 MB)
iwconfig
Code:
pepe@pepe:~$ iwconfig
wlan0 IEEE 802.11abg ESSID:"pepito"
Mode:Managed Frequency:2.447 GHz Access Point: 00:29:23:BC:32:2C
Bit Rate=54 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-36 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:4 Invalid misc:5410 Missed beacon:0
lo no wireless extensions.
eth0 no wireless extensions.
lshw
Code:
pepe@pepe:~$ sudo lshw -C network
*-network
description: Ethernet interface
product: 88E8040 PCI-E Fast Ethernet Controller
vendor: Marvell Technology Group Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eth0
version: 12
serial: 00:1d:09:5c:51:23
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 duplex=full latency=0 link=no multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:44 memory:f1ffc000-f1ffffff ioport:de00(size=256)
*-network
description: Wireless interface
product: PRO/Wireless 3945ABG [Golan] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:0b:00.0
logical name: wlan0
version: 02
serial: 00:1f:3c:7c:41:8c
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwl3945 driverversion=3.8.0-27-generic firmware=15.32.2.9 ip=192.168.1.103 latency=0 link=yes multicast=yes wireless=IEEE 802.11abg
resources: irq:46 memory:f1eff000-f1efffff
lsmod
Code:
pepe@pepe:/etc$ lsmod | grep "iwl*"
iwl3945 63619 0
iwlegacy 87575 1 iwl3945
mac80211 526519 2 iwl3945,iwlegacy
cfg80211 436177 3 iwl3945,iwlegacy,mac80211
dmesg
Code:
pepe@pepe:/etc$ dmesg | grep iwl*
[ 30.685230] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, in-tree:s
[ 30.685235] iwl3945: Copyright(c) 2003-2011 Intel Corporation
[ 30.740691] iwl3945 0000:0b:00.0: Tunable channels: 11 802.11bg, 13 802.11a channels
[ 30.740697] iwl3945 0000:0b:00.0: Detected Intel Wireless WiFi Link 3945ABG
[ 30.740851] iwl3945 0000:0b:00.0: irq 46 for MSI/MSI-X
[ 30.757182] ieee80211 phy0: Selected rate control algorithm 'iwl-3945-rs'
[ 34.598142] iwl3945 0000:0b:00.0: loaded firmware version 15.32.2.9
[ 39.742199] iwl3945 0000:0b:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[ 39.742203] iwl3945 0000:0b:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[ 9630.241061] iwl3945 0000:0b:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[ 9630.241065] iwl3945 0000:0b:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[13484.169418] iwl3945 0000:0b:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[13484.169424] iwl3945 0000:0b:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[14751.712045] iwl3945 0000:0b:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[14751.712050] iwl3945 0000:0b:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[15289.947063] iwl3945 0000:0b:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[15289.947067] iwl3945 0000:0b:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[15347.883761] iwl3945 0000:0b:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[15347.883765] iwl3945 0000:0b:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[15652.885471] iwl3945 0000:0b:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[15652.885477] iwl3945 0000:0b:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[16541.248407] iwl3945 0000:0b:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[16541.248411] iwl3945 0000:0b:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[18035.585123] iwl3945 0000:0b:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[18035.585127] iwl3945 0000:0b:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[18146.264061] iwl3945 0000:0b:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[18146.264065] iwl3945 0000:0b:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
Thanks,
ubuntu 13.10 - wifi slow - iwl3945
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