Ubuntu Networking :: Ralink .dat File Fine Tuning ?
Feb 12, 2011
Ralink's drivers for wireless adapters [url] with .dat-file to configure default properties of used WiFi adapter (at my case - RT2870.dat).
Example is below.
I'd want to fine tune adapters (I have two of them) to get maximum performance for streams between two WiFi clients connected to my router (JWNR2000 at my case).
At the moment I have changed WirelessMode=6 to force 802.11n mode (and it does work). Speed between WiFi-clients is about 3MB/s now. I want more How to?
Code:
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Apr 14, 2010
Essentially, what I am attempting to do is set up an older PC with a Radeon 9600 video card chipset in it with xubuntu 9.10. I would like to attach this PC to my rear projection tv (Sony KP-48S75) via an S-video cable and use this TV as the primary and only monitor for the system. At one point, I had Ubuntu 8.04 hacked onto this same hardware fulfilling this role decently. However, due to some carelessness on my part, the system became unstable and I decided to start anew (random crashes, lots of X freezes, dependency issues, screwing too much with my sources.list and so on). So, that said, I installed Xubuntu 9.10 on the PC and had it hooked up to both an LCD monitor and the TV via S-video. Upon boot, both outputs worked, though X only rendered on the LCD and not the TV. Thus, I dug and researched and found that by putting a bunch of xrandr commands into my gdm start script I could finagle the TV into displaying my output, mostly.
The commands I used to get the S-video out work (and, therefore, pasted into my /etc/gdm/Init/Default script) follow:
Code:
xrandr --output S-video --set load_detection 1
xrandr --output S-video --set tv_standard ntsc
xrandr --output S-video --set tv_horizontal_position -2
xrandr --addmode S-video 800x600
xrandr --output S-video --mode 800x600
xrandr --output S-video --rate 60
xrandr --output VGA-0 --off
You'll notice I do a few things in those commands. First, I set load_detection to 1 in hopes of enabling automatic S-video connection detection (this isn't working). The next interesting bit is my commanding the horizontal position. The reason I had to do this is, because, upon getting the S-video output to render, the picture rendered to the right-hand side of the screen, deprecating the furthermost bits (for instance, I cannot see the shutdown icon in the upper right hand corner). Setting the horizontal position to -2 allowed me to shift the display to the left a bit, but, to my surprise, the right hand side still deprecates and I am just left with a black column on the right hand side.
Question 2 has to do with the screen indexing. If I run a xrandr command with no options, I see VGA-0 indexed as Screen 0. I also see the S-video listed as disabled (even though I see it rendering on the TV right in front of me). Finally, I notice that, under the VGA-0 section, there is a screen size listed, as well as several resolution modes with many parameters following them (like 800x600 72.2*+ 75.0 .... some other stuff). However, under the S-video section all I see is one mode with one small bit after it (800x600 72.2*). This smacks of suspicion to me and makes me think it might be related to the right side of my screen being deprecated. My wager is that I need to tweak some modelines in the S-video output so that it is more in sync.
However, I do not know the syntax for modeline editing and, since the S-video screen isn't even detected, I am not sure I really can edit these options. Does anyone know why my S-video output would continue to be listed as disabled even when its running? Furthermore, can anyone tell me why no screen index is given to the S-video output (I only see screen 0 attached to VGA-0, no screen 1 for S-video)? I think I need the screen indexed properly in order to use the xvattr command later in order to allow xv overlays to function on the proper screen. Finally, I do have a xorg.conf file loaded in /etc/X11 that is mostly hacked together stuff I used trying to get this to work in the first place. Would this conflict with the xrandr setup? Which options override which?
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Oct 1, 2010
I was so sure it must be easy to set up the file permissions like I want, but obviously it isn't. Here is what I want to have: I have a samba fileserver (only Windows clients connecting) with a common share. Everybody is supposed to be able to put files on the share, but no one should be able to delete files which do not belong to oneself. I want several users to put files in a common directory, so they need write access to the directory, right?
But all the same they should not be able to delete files from others. So they are not allowed to have write access to the directory, right? It all works fine with modifying etc. but still I can delete files I am not supposed to do. I learned already that permission to delete is bound to the permissions of the containing folder and that sticky bits might help. But either they don't or I didn't get it right until now.
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Oct 27, 2010
How to speed up the menu "fade" (or get rid of it all together) in desktop effects? I need a composite manager for docky but the slower response on menus annoys me as they have to fade in and out. Anyone know which key in apps -> compiz I should change? Is it one of the plugins or one of the general keys?
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Mar 28, 2011
As an owner of the HP Touchsmart TM2T 2100 CTO I had to search on the internet to fine tune Ubuntu Netbook Remix, like auto-rotate.I am a Linux noob.Is there an expert who can develop an installation script to get the fine-tuning done by executing that script?I am thinking about installing auto-rotate, maybe fixing the ATI-card, multitouch,I know multitouch works out of the box, but I red some drivers can be updated to get the latest gestures and so on.
As Linux user who is not familiar knowing what he really is doing, such a script can be handy. It also helps new TM2T owners to work fast with the best OS there is: Ubuntu!
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Apr 21, 2011
I'm running a linux cloud server with the following config
1.2ghz Processor allocation
752MB Ram
The site loads slow and clicking a link almost freezes the page for a second. Also, the page loads could be much faster. We've been running mysqltuner and have pretty much optimized all slow queries. Is there anything we can do to fine tune the server for faster and more responsive?
Httpd.conf
Timeout 20
KeepAlive Off
MaxKeepAliveRequests 100
KeepAliveTimeout 5
<IfModule prefork.c>
code....
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Jan 18, 2011
I have an enormous quadcore machine with 16gb ram and dual gigabit NICs. It used to be for MySQL but we have upgraded the whole database infrastructure so now this server is left floating. I had the great idea of turning this into a reverse-proxy (using apache mod_proxy) and it really handles a ton of requests. But I have a feeling that we are not getting the most use out of what it can offer.
Our traffic consists of a few thousand very small (less than 10 byte) ajax calls per second, and frequently I find we are running out of kernel allocated network stack to handle all the requests. Often we get the kern.log warning "possible SYN flooding on port 80. Sending cookies." and other things like this. Obviously we are not getting SYN flooded, we just have very high demand.
So far I have found a few kernel tuning guides to tell the kernel to allocate more of the base system memory for networking but every guide I have found has been for the purpose of increasing the performance between WAN links (direct backbones between offices etc) and usually with very large file sizes being the priority. One such example (and great) write up is here:
cyberciti.biz/faq/linux-tcp-tuning/
I was hoping some people could provide further input, such as along the lines of disabling nf_conntrack (to speed up socket set up/tear down time) or anything that will speed up a high throughput proxy like mine. Any links to studies or benchmarks between different configurations or hardware gets extra points!
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May 3, 2010
My .jar file needs and uses some files in the same directory it's in (everything, including the jar was unzipped into said directory). It runs perfectly when I do java -jar file.jar in the command line, but there's trouble when I double-click the file when running from the file system manager. I've tried a custom command under properties ie java -jar, but the problem is that the .jar file doesn't seem to be able to use any of the files in the same directory. When running, the jar can't find any of the files that it needs.
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Jan 22, 2010
I have a rt2500 wireless USB adapter ( WLI-U2-KG54-AI ). I tried to use it on 2 computers loaded with Ubuntu 9.10. It worked well in WEP mode, but I am now trying to connect to a WPA router and the connection fails (the network manager icon keeps rolling forever). WPA works well on those machines when using another wireless adapter (not rt2500 based). This adapter also works well with WPA under windows. Is this device supposed to work with Ubuntu in WPA mode
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Jul 17, 2010
I am running Ubuntu 10.04 (32-bit) on a MSI A5000 which appears to have a RaLink RT3090 wireless card. So far everything seems to work except the Wireless card.
The problem is that no option for wireless appears in the network manager, it only shows the options for wired connection. This computer does have a button on the front to enable/disable wireless and I have confirmed that is is on, as there is a green indicator light showing this.
Can anyone tell me the status of the RaLink RT3090 with Ubuntu 10.04? I have looked through various posts here about getting this card working with earlier versions of the OS, where complicated procedures with mixed and apparently intermittent results are described. Do these measures also need to be followed with 10.04?
I have attempted several older solutions found in assorted threads here and I am still unable to get the card to even so much as show up in the network manager. The proceedure which seemed the most promising is here [URL]
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Aug 19, 2010
I am trying to get my usb wireless to work on Ubuntu 10.4 I found a how to and followed it but when I did a Make install this is what I got.
make -C /home/ronald/Downloads/DPO_RT3070_LinuxSTA_V2.3.0.4_20100604/os/linux -f Makefile.6 install
mkdir: cannot create directory `/etc/Wireless': File exists
make[1]: Entering directory `/home/ronald/Downloads
[Code].....
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Jan 18, 2011
It was recommended for my older Compaq desktop with a Celeron processor and 256mb of ram. I got the windows driver installer installed, but it was looking for a inf file and the driver I have on the cd is an executable file for an installer, so it wouldn't work. The cd also has a linux driver, but I do not know how to use terminal to install it. I'm at my wits end. I feel pretty stupid, because I know nothing about linux.
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Feb 1, 2011
I've followed these instructions exactly but when I get here: Quote: Reboot and you should see an ra0 interface when you run the command 'ifconfig'
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Feb 13, 2011
I downloaded a ralink driver for my wireless usb adapter and just need a bit of help installing the driver (RT3572USB)
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May 16, 2011
i am trying to get skylink 802.1n usb wirless adapter working under ubuntu 10.4 lts.https://help.ubuntu.com/community/WifiDocs/WiFiHowTowell, it seemed to see something at first:
user@host:~$ lshw -C network
WARNING: you should run this program as super-user.
...
[code]....
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Apr 19, 2010
I cannt get connection of my WIFI modem on UBUNTU 9.10(new installed) but it works on ubuntu 9.04(installed through WUBI.exe) without any driver. below is my lsusb report on UBUNTU 9.10
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May 13, 2010
I have an EEEPC 1000HE that has an AzureWave AW-NE766 wireless card. As far as I know, the card is based on the Ralink 2860 chipset.
It always worked fine under eeebuntu 3.0, but I just installed Ubuntu NBR 10.4 and now it's not detected at all.
Kernel : 2.6.32-22-generic i686
lspci and lshw show no mention of wireless card at all. Network-manager and wicd both show wired connections, but no mention of wireless at all.
I followed the instructions on the "Solved" post to install the latest Ralink driver from Jan 29. It all went fine, except "ifconfig wlan0 up/down" and "ifconfig ra0 up/down" both return "ERROR while getting interface flags: No such device"
how to tell Ubuntu that I have a wireless card in there?
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Dec 27, 2010
I bought an USB-WLAN stick, which does not recognize any network. A Ralink 802.11 bg WLAN Stick works fine, but the Ralink 802.11 n WLAN Stick does not work unfortunately. Both get recognized by the nm-applet of network manager but only the first one recognizes my network and is able to connect to it.
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Feb 5, 2011
Just built a new computer and I think I somehow need to activate my wireless card to get it working.The hardware seems to show up. I get "Wireless Networks" in my network manager but it is grayed out and says disconnected. I think it is an easy fix I just cannot find it.
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Aug 4, 2011
I have new emachine 1401 and I can't get it to connect to wireless. It does detect networks but when connecting keeps asking for password over and over and never connects. I don't have wired connection at all and the wifi router is not managed by me, so I'm retyping output through my windows xp samsung netbook which works over the same wireless network...
I have tries some other solutions I found around here (install bcmwl-kernel-source, rt3090-dkms_2.4.0.4, blacklist rt2800pci...) so it's not original configuration but behaves exactly the same.
[Code]..
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Sep 1, 2011
I installed the driver from Ralink (2011_0406_RT5390_RT5392_Linux_STA_V2.5.0.3_DPO) and followed the instructions in other threads and my card does not work. I am getting this message.
"$ dmesg | grep -e rt5 -e wlan
[ 14.454006] rt5390sta: module license 'unspecified' taints kernel. I have also installed the Ralink RutilT program using synaptic. I can see my wireless device and many others around me but I can't connect.
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May 31, 2010
I have an application pushing data on long WAN links. The application runs on RHEL4.
It is not able to utilise the complete available bandwidth. I was told that kernel needs to be tuned for "long fat" links, so that the system starts utilising complete available bandwidth. I found a link [URL] however it is on FreeBSD.
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Mar 11, 2010
I just purchased a RALINK WIRELESS G PCMCIA WIFI CARD VISTA/LINUX (UBUNTU).
It is supposed to be UBUNTU plug and play out of the box with no driver downloads needed.
I installed it but could not find a way to search the active Wi-Fi networks available like on my Actiontec card on windows xp. The wireless router/ethernet I have is an Actiontec setup for Qwest-DSL and Actiontec is the name of the wireless network.
Strangely I tried to choose setup a "new network" and entered Actiontec as the network name and it found the network and said it was connected to it. However the internet still is not working?
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Mar 11, 2010
Has anyone ever heard of this card or have knowledge of how to configure it to allow me to get on the internet?
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Jul 22, 2010
I have an Acer Aspire One ZG5, which is running (Desktop Version) 10.04. I've been happily using the built in wifi adapter, but now I've got a new wireless hub that supports 802.11n and I want to exploit the higher connection speed. I've bought a wireless usb that has no external markings, however, using 'lsusb' I've managed to establish it contains ralink 3070. Any ideas how I get this to work? When I plug in the wireless dongle from another laptop I get two connections available for use in network manager, but when I plug this one in nothing seems to happen.
[Code]...
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Aug 18, 2010
this is my first attempt to get into Linux (10.04 Lucid Lynx), and I'm eager to learn. The problem is however that i can't connect to the internet using my USB wifi dongle (Jensen 25150). I've tried what this link says:I've tried to blacklist rt2800usb, rt2x00lib, rt2x00usb and rt2870sta and to load "/etc/modules/rt3070sta", but no luck in that, so I simply do not know what to do next. Perhaps I haven't blacklisted them the right way? I've typed in the commands and saved Gedit and closed it. Is that the right way?
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Mar 10, 2011
I just want to setup adhoc network using the wireless card that came with the box but I'm having a hard time getting it up. I have gone through a lot of posts about wireless troubleshooting but nothing has solved it. Left clicking the network manager tray icon always says wireless network is disconnected. "Enable Wireless" is checked.
Some info:
Code:
rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
[Code]....
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Mar 31, 2011
I been having trouble getting my rt2070 wireless usb card to work on my desktop. I am using Ubuntu 10.10.
[URL]
Pastebin of dmesg: [URL]
Code:
Representative portion in case pastebin wipes this entry:
[ 234.984025] hub 1-0:1.0: Cannot enable port 8. Maybe the USB cable is bad?
[ 234.984041] hub 1-0:1.0: unable to enumerate USB device on port 8
[Code].....
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Jul 30, 2011
I've ubuntu 10.04 and I can't connect to router wi-fi with my new wireless adaptor usb (ralink 2870). I've tried various guides but nothing. The adaptor work fine with Windows and other linux distributions.
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Aug 5, 2011
I'm running 11.04. I have brought a new WiFi adapter, ralink rt2070. When I browse the internet, it takes a long time to load a webpage. When I download updates, it goes at 3,060 BYTES a second. Is there any solution? I'm using the default rt2800usb driver.
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