LinuxQuestions.org
Register a domain and help support LQ
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices

Reply
 
Search this Thread
Old 07-12-2010, 09:32 PM   #1
Ubunoob001
Member
 
Registered: Feb 2010
Location: New Orleans, LA
Distribution: Mint 16 RC, Elementary OS Luna, Crunchbang
Posts: 166

Rep: Reputation: 16
Smile Decreasing Minimum Wireless Signal to Connect?


Hi all,
I am new (couple months) to linux and Ubuntu.

My box: Dell Inspiron 1545. lspci results below. I have enabled the Broadcom STA restricted driver.

Problems:

1. I am noticing in Ubuntu (using Network Manager and Wicd) that I am unable to connect to wireless signals that are very weak. In my other OS (dual boot), I am able to connect to these weak signals.

2. And the speed of these networks is much slower, and the disconnect rate is much higher than in my other OS

I am THRILLED with Ubuntu otherwise, just looking to fix this issue so I can use Ubuntu as my primary OS.

Could this be an Broadcom STA issue, or Software config issue? etc? Obviously not hardware cause hardware is same on other OS.

Code:
~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
09:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller (rev 13)
0c:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01)
on another site they recommended i post output of:
Code:
~$ sudo iwconfig eth1
[sudo] password for xxxxxxx: 
eth1      IEEE 802.11bg  ESSID:"linksys"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: xxxxxxx
          Bit Rate=5.5 Mb/s   Tx-Power:24 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr:off
          Encryption key:xxxxxxx
          Power Managementmode:All packets received
          Link Quality=1/5  Signal level=-82 dBm  Noise level=-89 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:3202  Invalid misc:0   Missed beacon:0
and
Code:
~$ sudo iwlist eth1 txpower
eth1      2 available transmit-powers :
      0 dBm      (1 mW)
      25 dBm      (255 mW)
          Current Tx-Power:24 dBm      (200 mW)
 
Old 07-14-2010, 05:56 AM   #2
subho.d
Member
 
Registered: Jun 2010
Location: INDIA
Distribution: All Linux & Unix
Posts: 86

Rep: Reputation: 19
r u able to go gui
If Y then find in google how to warless connection in ubuntu ...
 
  


Reply

Tags
bcm4312, speed, wireless


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Following Wireless Signal?? iubuntu Linux - Networking 3 11-29-2009 10:52 AM
HP ze5500 running Suse11.1 KDE4.1 recognizes Wireless Signal but will not connect Leuthesius Linux - Laptop and Netbook 25 03-20-2009 08:08 PM
wireless -no signal sycamorex Linux - Networking 2 03-17-2008 02:49 PM
Wireless PCI card with minimum of pain durrantj Linux - Hardware 4 05-11-2005 12:58 AM
how to connect my signal with standart (Qt(QListView)) stpg Programming 1 07-05-2004 07:22 AM


All times are GMT -5. The time now is 02:22 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration