Ubuntu Networking :: Meaning Of Iwlist Quality/(signal|noise) Level?

Jan 10, 2010

What does the Quality, Signal Level and Noise Level actually mean? Which should I be looking for when looking for good APs?Is Quality the same as RXQ in airodump?

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OpenSUSE Network :: "iwlist S" Output - Quality / Signal Level And Noise Level Mean?

Jul 21, 2010

[code]...

you can find a cutout of an output generated by "iwlist s" command for a cell. Does anybody know what Quality, Signal level and Noise level mean? What is the definition of them? I searched for it and could not find good information on it. What do these Extra:*** fields for? What does it show in the example above? How were those values computed?

[code]...

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Ubuntu Multimedia :: White Noise And Low Quality Sound

Aug 4, 2010

When I turn my sound up all the way I hear a white noise or "staticy" sound which I do not know how to get rid of. My sound when playing music is not the best sound quality either. Please help me out somebody please. Here is my sound card info:

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Ubuntu :: Running 10.04 On A Dell Dimension 4600 - Sound Quality Isn't Very Good - Static Noise

Aug 26, 2010

I'm running Ubuntu 10.04 on a Dell Dimension 4600 and the sound quality isn't very good. I loaded VirtualBox and installed WinXP on it. If I play the same ..... video on Ubuntu and then on the Vbox WinXP machine the difference is startling. It sounds beautiful on the WinXP machine. Is there any way to improve the sound quality on Ubuntu? When I play the video (any video) on Ubuntu there is a lot of static noise to contend with.

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Debian :: Reduce Fan's Speed - Noise Level ?

Aug 23, 2011

I have a multiboot system with Windows Seven and Debian Squeeze installed.

When i run Windows, the fans in my PC work silently, but when i run Debian they making extremely terrible noise (looks like they working at full capacity).

I have 4 fans in my chasis, 1 CPU, 1 GPU and 1 PSU, 7 total.

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Server :: Error SCSI Controller Was Reset Due To SCSI BUS Noise Or An Invalid Signal?

Feb 15, 2010

i m facing same error in most of the HCL servers. the problem is that it throws error while booting and sometimes not throws error. the error is :-

Feb 13 13:17:25 fe13s kernel: Adapter 0: Bus A: The SCSI controller was reset due to SCSI BUS noise or an invalid signal. Check cables, termination, termpower, LVDS operation, etc.

Feb 13 13:17:30 fe13s kernel: Adapter 0: Bus B: The SCSI controller successfully recovered from a SCSI BUS issue. The issue may still be present on the BUS. Check cables, termination, termpower, LVDS operation, etc

Feb 13 13:29:15 fe13s kernel: Adapter 0: Bus B: The SCSI controller successfully recovered from a SCSI BUS issue. The issue may still be present on the BUS. Check cables, termination, termpower, LVDS operation, etc
code....

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Networking :: Iwlist Does Not Scan For APs On Channel 12 & 13?

Mar 26, 2011

I have a netbook with a onboard WIFI card(Broadcom 5727(rev 01)) and a Realtek RTL8191S USB WIFI donge. Both work.

My problem is; I can't get these to scan for AP's running on channel 12 and 13.

Is there a way to fix this?

Distro: Slackware 13.1
Kernel: 2.6.33.4-smp

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Fedora Networking :: Iwlist Scan In The Terminal But That Doesnt Seem To Work?

Jun 24, 2010

generally whenever there is a wifi connection available fedora will detect and i can establish the connection but today i am not able to see any such wireless network available. I am in a wifi accessible area and i need to know how this can be rectified. i tried iwlist scan in the terminal but that doesnt seem to work

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Fedora Networking :: Iwconfig And Iwlist - What Frequency A Wireless Interface Is Using

Nov 10, 2010

I have just upgraded my system to Fedora 14. One thing I noticed after running some applications on it is that it is not possible anymore to figure out on what frequency a wireless interface is using. If I set a wireless interface to monitor mode and perform the iwconfig or iwlist command, in the past, I could see the frequency used on the interface, but now, this information is not present anymore. My wireless interfaces are in monitor mode.

Has the frequency information been removed from iwconfig or iwlist commands? If it has, is there another way to report this information?

Here is an output from iwconfig on my system:

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Ubuntu Networking :: Iwconfig/iwlist - No Wireless Extensions And Interface Doesn't Support Scanning?

Mar 11, 2010

The adapter I purchased (Zonet ZEW2508 ) uses the Ralink 2070 chipset - a fact that originally excited me because Ralink seems to be fairly loving to the Linux community. However, despite my best efforts I can't get the thing to work. Initially I tried following directions to set up the driver you can download from the Ralink website. The directions I found were written February first, and Ralink updated the driver February eighth - so as far as I can tell the directions no longer work. After screwing around trying to figure that out for a while I decided to give ndiswrapper a go.

Initially this seemed promising. I just harvested the drivers from the CD and followed one of the many ndiswrapper directions available - most helpful seemed initially to be the Ndiswrapper Troubleshooting Guide found in this forum, however the solutions offered there didn't work either. When I throw an ndiswrapper -l into the terminal it looks promising at first, it tells me the driver is installed and the device is present, but it just doesn't work. When I try iwconfig, or iwlist scan it tells me "no wireless extensions," and "interface doesn't support scanning" respectively. The only devices even listed are lo, eth0, and pan0. There's no wlan0 or anything of the sort.

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Ubuntu Networking :: No Nm-applet - Couldn't Initialize The D-Bus Manager - Iwlist Scan Detects Networks

Nov 14, 2010

I'm running Ubuntu 10.04 server 64bit. I'm trying to get my ASUS PCE-N13 wireless PCI card working for searching and connecting to wireless networks. But I have no networks applet appearing in the panel. system->preferences->sessions has the Network Manager enabled The Notification Area is added to the panel. system->preferences-Network Connections-->Wireless[tab] shows a pink box, with no available connections.

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Ubuntu Networking :: Exact Meaning Of 'network Is Unreachable'?

Dec 27, 2010

I've been having a lot of trouble with getting wireless networking devices to work. I guess I have a lot of company, since mfrs don't seem to be very interested in supporting Linux.It seems that one common symptom is that, when I try to "Ping" using the Terminal, I get "network is unreachable".Does this mean anything specific, or is it a general output whenever the network is not carrying on two way communications? Does it mean that the wireless interface is down? Does it mean that the wireless hardware is not transmitting? Not receiving?

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Ubuntu Networking :: When Use "iwlist Ra0 Scan" Get A Listing Of Available Networks?

Feb 2, 2011

I have a Linksys AE1000 wireless adapter and I used the post found here to install the drivers.I've figure I installed the drivers successfully because when I use "iwlist ra0 scan" I get a listing of available networks.The problem is, I can only connect to unsecured networks. For instance,

Code:
sudo iwconfig ra0 essid "unsecure network"
The above command connects me but the one below doesn't

[code]....

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Ubuntu Networking :: Sudo Iwlist Scan Works But Cannot Connect To Network Using Network Manager

Jun 14, 2010

I have used ubuntu in the past but had a lot of hardware issues with it and unfortunately moved back to windows (( BUT i have tried Ubuntu again and all seems to work great except wifi My wifi connection is sort of working because when i run SUDO IWLIST SCAN it does pull up all available networks. But in the network manager icon on the panel i left click but i see no networks and can't connect to anything. I WOULD LOVE TO keep Ubuntu and use it permanently but I must get wifi working or else this won't be possible.

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Ubuntu Networking :: Optimizing For Low Quality DSL?

Apr 28, 2011

I have a friend who is using Ubuntu 10.10 Netbook Edition on their netbook and well they love it. However, I notice that at times (if not all the time) their internet is ridiculously slow. Yes, it's a 1 Mbps download connection, but I still think it's a little slow and at times I can't even get it to load a website. I'm thinking if I adjusted the MTU within Ubuntu, it might improve, if even only slightly. I believe the router is set to 1490 or 1500, I haven't really looked yet.

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Ubuntu :: Adjust Level At Which Battery Criticality Level Is Triggered?

May 8, 2010

How can I adjust the levels at which the battery is considered to be critically low?ight now it seems this is set at 5 or 10%. I want to make it 20 or 25%This is for Gnome. I am using Lucid x86

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OpenSUSE :: Move Transparently Between Run Level 3 And Run Level 5 As Autologin User?

Aug 10, 2010

I've been able to kludge a kill script which finds the correct pid for the kdeserver (or gnome server) after my system comes up in run level 5 so I can drop back to run level 3 mode. Lots of experimentation showed me that using telinit 3 and telinit 5 would occasionally leave the video memory in a mess and I would have the black screen of death.

I set the security parameter setting to autologin for me since I am the only user of my machine, but I still have to kludge the default setting under sysconfig (the DEFAULT_WM) under Window Manager to pick a certain window manager, so it takes time to manually switch the desktop.

Right now I can leave the gui and drop back to cli, but painful experimenting showed me that killing the X server is a no no. Right now I kill the kde server, which sends the SIGTERM to the X windows manager, which then figures out that it has to shut down.

Questions: Is there a better way of doing this? Apparently openSUSE figures that we have multiple users logging into the gui desktop, so the gui is always kept running and a login window with the desktop manager option forces the user to login in. With autologin, this never happens, but no choice of desktop is possible on the fly.

Can some type of script be set up to painlessly enable this to happen? And what is the best way of bringing either the Gnome or KDE desktop manager down gracefully? I do get lots of error messages as the system attempts to recover and X shuts down. It appears that apparently the single user with autologin is left out in the cold.

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OpenSUSE Install :: Admin Level Software To User Level?

Feb 6, 2010

I want to install a software called TinyOS which is an operating system designed for wireless sensor embedded networks in my account. The problem is it has instructions to install the software as an administrator since i'm not an admin of the department network i can not able to install. Is there any method to install this software as an user level rather than admin level.

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General :: Initializing Run Level 4 At Inittab Default Level

Jan 15, 2011

hello everyone, im having a problem when my computer enters in the run level 4 as the default when i start slackware. The strange thing is that it not seems that is a X window problem, it looks like more like a configuration problem in some part of the kde script to initialize the log in, because if i manually start the X service it works fine, i dont know what is the source. Thank you in advance for the help.

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Programming :: Accessing SPI From Kernel Level And User Level

Jan 6, 2009

I want to know what are the advantages and disadvantages for accessing spi(serial peripheral inerface )from kernel level and user level. like methods of doing it, speed ,memeory utilization etc

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Networking :: Quality Of Service Setup For VoIP

Jan 27, 2010

I'm trying to setup QoS for my VoIP line on my debian router box. I have tested wondershaper and to me it doesn't seem to work at all, so I'm looking for a better solution. Ultimately I would like something in the lines of [URL] but I guess such nice things doesn't exist for linux. Currently I'm on an ADSL link switching to cable in a few months.

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Ubuntu Networking :: "open", Meaning Not Sold And Locked By A Carrier Like AT&T, Or T-Mobile?

Apr 12, 2010

Does anyone know of an official link to Ubuntu compatible 3G USB Dongles. I am looking for those that are "open", meaning not sold and locked by a carrier like AT&T, or T-Mobile.I want to travel with it and use it in any country with a local SIM and data plan.I am currently using Ubuntu 9.10 but can upgrade if need be.

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Ubuntu Networking :: Mobile Broadband Singal Strength Quality Rate?

Jun 30, 2010

So im pleased that my mobile broadband connection works but unfortunately the gnome/ubuntu way of displaying the connection strength is poor to say the least. Shown in this screenshot is my connection, 4 out of 4 bars.

BUT, does this mean i have a decent signal but only gprs? How do i tell if i have connected with 3G hspda gprs etc....?

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Ubuntu Networking :: Wireless Networking - Signal Very Poor

Feb 21, 2010

My mother has Windows Vista and i have linux ubuntu. She has a special verizon card that she inserts into her laptop for internet. My computer also has an internal wireless card, but the signal here is very poor. Supposedly, among windows computers, I would be able to get a flashdrive, and with a little program uploaded from my moms computer, set things up using the flashdrive on my computer to share the internet that she pays good money for =/ However, it wont work with ubuntu, which isnt in the windows inner circle. When I open the executable file with WINE it says that it cant run wireless network setup "on this version of windows". lawl. I was wondering, is there any way around that? Is there anyway to network with my mothers internet?

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Ubuntu Networking :: Change Run Level For Wireless Networking?

Apr 6, 2010

I have a desktop with a printer attached on a wireless link.I have a laptop where I want to print from. The problem is the wireless link comes up only after I log on to the desktop.I would prefer the wireless link (and cups) to be up with out having to log on at the desktop.

How would the run level be changed?

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Ubuntu Networking :: Wifi Signal Very Low

Jan 15, 2010

I was running windows vista 32 bit (NOW UBUNTU 9.10) on my custom built pc with a TP-LINK TL-WN353GD wireless pci card, before on vista my wifi signal strength would be in the low 70% range with a speed of 54 Mbps from a access point roughly 250 yards away, now with ubuntu 9.10 signal strength in the 15-20% range with a speed of 1 Mbps. My question is, what is the best way to overcome this wifi signal strength and speed problem, it is a noticable performance disadvatange easily seen on a website like ..... where as before videos would play 95% of the time without having to stop and catch up, would a different wireless pci card be a better choice than what I have, or is the problem in the software as in a driver incompatability or lack of correct driver, not sure how to remedy the problem.

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Ubuntu Networking :: 10.10 Has A Much Lower Signal Than Mac OSX?

Jan 9, 2011

I installed 10.04 1st by making a partition with bootcamp on MacOSX.Then I formatted the partition according to Ubuntu's instructions. I didn't install rEFIt, because I prefer to just hit the alt (option) key.I made the necessary adjustments according to URL...Community Ubuntu Documentation - and everything seemed to be working fine.I upgraded to Maverick and everything seemed to be working fine aswell.But then I noticed, that the wireless signal keeps failing and I'm asked to put the password again and again..

I don't think this is due to the upgrade from 10.04 to 10.10, but I just noticed it recently, maybe because of the air humidity, the signal was stronger a few days a go.. don't know!!Is there anything I can do?Perhaps install a new driver, or another wificlient, like Wifi-Radar??

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Ubuntu Networking :: Why Isn't 9.10 Picking Up My Wireless Signal?

Jan 25, 2010

I installed WICD because I was looking around the internet and the Ubuntu forums said that it was the best fix for the Network Manager not working. I added the source and installed the package like the Ubuntu site said. I go to Applications => Internet => Wicd Network Manager. It says no wireless networks found. I know that the router is working because my sister is right here next to me playing Maplestory on her laptop! When I do the lshw -C network function in the terminal it is only bringing up two things: the network controller and the ethernet controller. I used Yahoo Answers as my first goto and the answers there said that Linux doesn't have the drivers for the router. I have a Netgear Wireless-N 300 Router WNR2000 and a Dell Inspiron 1750, if that helps. Can someone give me a link to the drivers or tell me in detail what to do?

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Ubuntu Networking :: Can't Connect To Wireless Signal?

Feb 7, 2010

I have Ubuntu 9.10 a dell laptop i am using a tew-644ub usb wireless adaptar and it's seeing signals but wont connect to any my network is unsecured and open. everytime i try it does this swirlly thing then says diconected. im using a diferent computer to post this so if there

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Ubuntu Networking :: Boost WiFi The Signal?

Feb 9, 2010

i'm surrounded by concrete block wall but have found an unlocked wifi signal. but i need to do something to help boost the signal. my HP laptop has a built in wifi card and i'm looking for something that i could use or do to help boost the signal.

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