[Bug 479283] [NEW] slow speed (1MB/S) on ubuntu karmic 9.10 64-bit using smcwusb-g (ezconnect)

[Antonio J. de Oliveira]

Public bug reported:

Binary package hint: linux-backports-modules-wireless-karmic-generic

hello

here is iwconfig, wlan1 is the problematic one, wlan2 side-by-side.

wlan2     IEEE 802.11bg  ESSID:"Acutron"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:13:F7:E7:51:61   
          Bit Rate=54 Mb/s   Tx-Power=27 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-17 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

wmaster0  no wireless extensions.

wlan1     IEEE 802.11bg  ESSID:"Acutron"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:13:F7:E7:51:61   
          Bit Rate=1 Mb/s   Tx-Power=27 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=60/100  Signal level=60/100  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

wlan1 displays low signal level and slow speed, wlan2 is internal and
was performing much worse and in a buggy fashion before the upgrade from
9.04 to 9.10. That was the reason I had the smc unit. Now the problem
has reversed.

lsusb:

Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 107: ID 083a:4505 Accton Technology Corp. SMCWUSB-G
Bus 001 Device 105: ID 0bda:8189 Realtek Semiconductor Corp. RTL8187B Wireless 802.11g 54Mbps Network Adapter
Bus 001 Device 006: ID 0458:003a KYE Systems Corp. (Mouse Systems) 
Bus 001 Device 005: ID 0409:005a NEC Corp. HighSpeed Hub
Bus 001 Device 003: ID 5986:0200 Acer, Inc OrbiCam
Bus 001 Device 002: ID 0409:005a NEC Corp. HighSpeed Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lspci:

00:00.0 Host bridge: Silicon Integrated Systems [SiS] 671MX
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SiS AGP Port (virtual PCI-to-PCI bridge)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS968 [MuTIOL Media IO] (rev 01)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 01)
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] 191 Gigabit Ethernet Adapter (rev 02)
00:05.0 IDE interface: Silicon Integrated Systems [SiS] SATA Controller / IDE mode (rev 03)
00:06.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge
00:07.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge
00:09.0 FLASH memory: ENE Technology Inc ENE PCI Memory Stick Card Reader Controller
00:09.1 SD Host controller: ENE Technology Inc ENE PCI SmartMedia / xD Card Reader Controller
00:09.3 FLASH memory: ENE Technology Inc ENE PCI Secure Digital / MMC Card Reader Controller
00:0f.0 Audio device: Silicon Integrated Systems [SiS] Azalia Audio Controller
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 771/671 PCIE VGA Display Adapter (rev 10)

uname -a

Linux luna 2.6.31-15-generic #49-Ubuntu SMP Fri Nov 6 09:55:13 UTC 2009
x86_64 GNU/Linux

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New

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slow speed (1MB/S) on ubuntu karmic 9.10 64-bit using smcwusb-g (ezconnect)
https://bugs.launchpad.net/bugs/479283
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