Hardware :: Connecting A Laser Range Finder To Ubuntu?
May 4, 2010
I am trying to Connect a Hokuyo URG Laser Range Finder to a Jaunty Ubuntu computer through a serial to USB converter. When I plug it into the computer and type 'lsusb' it does not recognize the device.
Before I plug it in:
~~~~~ lsusb
Bus 001 Device 021: ID 0781:5406 SanDisk Corp. Cruzer Micro 1/4GB Flash Drive
Bus 001 Device 004: ID 0bda:0158 Realtek Semiconductor Corp. Mass Stroage Device
Bus 001 Device 003: ID 5986:0203 Acer, Inc
[code]....
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Jan 29, 2010
I get this error when running my program under linux; under windows it works as expected:
Code:
$ ./mssql_test
("QSQLITE", "QMYSQL3", "QMYSQL", "QODBC3", "QODBC")
qGetStringData: Error while fetching data ("[FreeTDS][SQL Server]Program type out of range")
QVariant(int, 1) QVariant(QString, "")
I can retrieve int's just fine, but not nvarchar's. I'm using unixODBC 2.2.12 and FreeTDS 0.82. The funny thing is, that I can use isql and tsql with no problem. The mssql_test program:
Code:
#include <QSqlDatabase>
#include <QSqlError>
#include <QSqlQuery>
#include <QDateTime>
#include <QDebug>
#include <QVariant>
#include <QStringList>
#include <QSqlRecord> .....
The same error and output continue for the next records. These have cut out. I've been looking for a solution of a couple of days now, with no luck.
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Sep 30, 2010
After spending several months coming up with ideas (and ultimately failing), I have found the easiest and simplest way to connect your Ubuntu desktop (or laptop w/o a wireless adapter/card) to the Internet using only a Linksys Wireless Range Expander and an Ethernet cord.
YOU WILL NEED:
Linksys Wireless Range Expander (WRE54G)
Ethernet cable
Linksys wireless router (that is providing your home/office with wireless Internet) The WRE54G can be purchased online through various websites, including eBay. They run anywhere between $10 and $40, but it's going to be cheaper than a USB Wireless Adapter (and no software needs to be installed, making it universal for most Linux distros).
[Code]...
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Jun 23, 2009
get me understand the short range and the long range links from routing (and routing protocols') point of view.
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Apr 24, 2011
I want to plot a set of data in only one plot.The problem is that some points of the data should be better plotted in a linear scale (lets say 0 to 100,000) but there are other data points that, exceding the value 100,000, would be better plotted in a logarithmic scale, as they goes in the range 100,000 to 500,000,000. Let's say the data is:
Code:
X Y
0 100
10000 80
20000 75
[code]....
Is there a way to plot all these points in the same plot in only one X-axis showing two different ranges in that axis: linear: 0-100,000 logarithmic: 100,000 - 1,000,000,000?The axis would be read, for example, as:
Code:
|-----|-----|-----|-----|-----|-----|-----|-----|-----|
0 20k 40k 60k 80k 100k 1M 10M 100M 1G
(The abbreviations k-M-G are not the important point. Just shown for clarity)
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Jun 20, 2011
Tried to use Ubuntu 11.4 to assist in recovering a windows xp system. Ran from cd without installing. Failure. Could not find Windows hd. How do I list all storage media. Where is the Mac OS Finder/Windows explorer? Could not find Terminal. Ran search, but seems limited to just your user data. How do I do a search for the terminal applications. Did get some worthless display of all installed programs, but could not launch application. Is there a way of switching the old User Interface from the running from CD version?
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Apr 11, 2011
I want to build a bash script, which can ping a range IP adresses which will be filled in by the admin. If there is no IP-adress filled in, then the script must ping the subnet where the system is logged on. So if my ip is 192.168.1.6, then the script must ping from 192.168.1.1 till 192.168.1.255 Or else, if there is given a beginning and ending ip it must ping that!
The first part of the bash script is to ping a given range (see below). But there is one problem, how can I tell the script to ping from $begin till $end, [..] is of course wrong! But what must be filled in there???
echo "Enter beginning IP-adres:"
read begin
echo "Enter ending IP-adres:"
read end
ping -c 1 $begin [..] $end
The second part is to find my own ip and ping the whole range.. How to do that? I only can find my own IP, but I cant ping the whole range,, how to do that?
#!/bin/bash
ifconfig | grep 'inet addr:' | grep -v '127.0.0.1' |
cut -d: -f2 | awk '{ print $1 }'
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Dec 5, 2009
Is there a program for linux which can show me a list of all duplicate music files in a directory? This will allow me to delete all duplicate files without searching for them manually.
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Dec 17, 2010
I've created a headless ubuntu mac server and everything is being found by Bonjour and showing up in Finder. The only thing that bugs me is the default horrible text used for remote desktop. How can I remove this item from the sidebar or rename it? I'm using the built in remote desktop utility on Ubuntu desktop 10.10
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Apr 16, 2011
I have my MacBook 5,2 hooked up to an Ubuntu 10.10 'server' via ethernet.
I've installed netatalk and avahi-daemon on the server. I've disallowed Spotlight (OS X's search utility) from indexing the networked drives.
Everything works as it should, however, from time to time when I delete files that reside on the Ubuntu server from my MacBook, Finder (OS X's file manager) will freeze. I can kill the Finder process. I then try to restart it from the Terminal from the command line but I get the following error message printed:
Code:
LSOpenURLsWithRole() failed with error -10810 for the file /System/Library/CoreServices/Finder.app.
The only solution I know of at present is to reboot the MacBook.
So I guess I need to know what my options are here. Is it better for me to use SMB? Or is there a config file I can alter? I have a feeling this bug may be linked to certain disallowed characters in file or pathnames as it doesn't happen all the time, although this is just a hunch.
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Jun 22, 2011
I have my MacBook 5,2 hooked up to an Ubuntu 10.10 'server' via ethernet.I've installed netatalk and avahi-daemon on the server. I've disallowed Spotlight (OS X's search utility) from indexing the networked drives. Everything works as it should, however, from time to time when I delete files that reside on the Ubuntu server from my MacBook, Finder (OS X's file manager) will freeze. I can kill the Finder process. I then try to restart it from the Terminal from the command line but I get the following error message printed:
Code:
LSOpenURLsWithRole() failed with error -10810 for the file /System/Library/CoreServices/Finder.app.
The only solution I know of at present is to reboot the MacBook. So I guess I need to know what my options are here. Is it better for me to use SMB? Or is there a config file I can alter? I have a feeling this bug may be linked to certain disallowed characters in file or pathnames as it doesn't happen all the time, although this is just a hunch.
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Jun 16, 2010
Is there any free application to search duplicate images based on visual similarity? By visual similarity I mean the same picture ( or almost the same ), but different resolution, aspect ration, quality, etc. The only programs I found yet are for windows and aren't free.
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Jan 25, 2011
I am very familiar with "find" and "locate" and many of the options they provide. Does anyone know a tool in order to search inside of documents and files like you would do it with the finder on Mac or with Windows search?I guess these tools use an indexer which is always running and indexing the content of every file so you can search and find a file based on what is in it, rather than by name only like locate would do.
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Oct 16, 2010
I would like to know how to network a HP P1005 Laser Printer that is connect to my desktop with Windows XP SP3 Home, & as well network files & folders to watch it on Ubuntu on my laptop?
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May 16, 2010
I'm looking for a low cost mono laser printer that just works under Ubuntu. I know that a general 'rule of thumb' is go with HP, but that doesn't seem to be the case with their low-end mono printers, as they use the XQX Stream Protocol instead of Postscript. The more expensive HP printers appear to work because they use Postscript.
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Sep 24, 2010
I am using Lucid 10.04 and don't plan to change until support is dropped. I am looking to buy a multifunction monochromatic laser printer.
I was considering Samsung SCX-4828FN or HP LaserJet M1522NF. Both have network cards and support for Linux, but I am a little leery of the Samsung's support in Lucid. Does anyone have this printer? It seems to me a better choice if it works, because the toner is quite a bit more economical and I print quite a a lot.
My only requirements are all-in-one scanner/printer, economical, network card, proven to work.
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Jun 9, 2010
I need to remap an MS laser mouse 6000 not the wireless one. The issue is this. The right click button is broken and id like to change the forward button to do right click.
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Apr 6, 2011
I have found several people who have had problems with Canon all-in-one laser printers. I had huge problems when I first set mine up because it wasn't in Synaptic yet. There are threads on the forum addressing specific printers, but since the driver wasn't officially supported for very long I think lots of folks have given up the fight. My thought is that anyone who successfully installed a Canon laser should be able to post to this thread, and/or a link to threads on this or other forums which they found helpful in getting it to work.
The driver as it is shown in Ubuntu 10.10 is cndrvcups-ufr2-uk, and cndrvcups-common. I have a Canon ImageClass MF8050CN color networked laser which works perfectly with this driver. It supports the networking, although it takes a couple minutes to populate the list of printers when you're setting up. I have not tried the USB port since I have no use for that type of configuration. I have not tried scanning to the computer, only to the USB stick, which works fine.
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Aug 5, 2011
I just bought a usb logitech LS1 laser mouse, plugged it in restarted ubuntu 10.10 and its not working.
Where can i change the mouse?
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Apr 18, 2010
I am trying to SETUP the following printer within Ubuntu Epson Action Laser 1500 - it is a relatively older printer, and just can not seem to figure out how to get it to work - does not seem to be recognized by Ubuntu - was my primary printer for years when using XP, so know it works
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Oct 18, 2010
Using ubuntu 10.04 a dell 1320 colour laser printer. I have been using a xerox driver for this but it will only printer from the single sheet feeder and no the paper tray. It works fine with XP and windows driver. I know that there is not a dedicated driver for linux but is there one which will work correctly and how do I install it?
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Sep 3, 2010
Am I the only one who gets this on gnome everytime I start up package manager or package finder in 11.3?
System management is locked by the application with pid 6890 (/usr/sbin/packagekitd)
I literally have to kill -9 pid everytime I run it. What is going on here?
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Dec 4, 2010
LaserJet Pro CP1525NW. HP website mentions that it is compatible with Linux. However, this particular model cannot be found at Linux Foundation's OpenPrinting Database. As you can see here, there is no mention of HP LaserJet Pro CP1525N which makes me worried. Also, the printer is not listed in HP Linux imaging and printing.
What are your thoughts and do you have experience with this printer? What other Color Laser printer do you recommend? The fact that the that printer's specification on HP website says that it is compatible with Linux, yet it is not listed on HPLIP nor in Openprinting makes me nervious.
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Feb 4, 2010
Just purchased new del 1320cn printer and unfortunatly ubuntu doesn't see it. I tried the Foomatic system as well, which does see the printer and identifies it but does not show the model number in the list.
Any help would be really good. My other Del 1110 mono laser worked first time!
If any terminal commands reqd, please could you be kind enough to list them as I get confused using terminal.
distro: ubuntu 9.10
Printer: Del 1320cn Colour Laser Printer
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Feb 9, 2010
I just installed Ubuntu 9.10 and its great. However when I connect to the internet at home it shows that the connection has been established but I still cant connect to the internet. My flatmates are all able to connect. However, I am able to connect from work both wirelessly and through an ethernet cable.
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Jan 24, 2011
Anyone know where to find this?
The official Lexmark site has drivers for the printer up to 11.1, which doesn't install in 11.3.
the CPU is a 64-bit Intel.
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Jun 13, 2011
I am using slackware 13 and cups is working OK. i installed the printer HP laser jet 1018 USB printer through localhost:631. it seems installed correctly but when i send test print there is no output.2nd thing i want to share that printer to some other windows machine on network so they can also use that printer
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Jan 12, 2010
My dad owns a business and the computer he uses for engraving uses Windows 98 and he wants to upgrade and he likes ubuntu and I want to know how to install an Epilog Laser Engraver model 2000 25a laser!
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Aug 4, 2010
unable to print to / install / locate Dell P1500 laser
The printing troubleshooter says:
"CUPS service does not appear to be running. to correct this , choose SYSTEM->Administration->Services from the main menu and lookfor the cups service"
unfortunately there is no->Services tag under ->Administration to look for the CUPS Spooler.
running 10.04 64 Bit on a dual boot with vista AMD6000 box Printing is fine on the vista side so the printer and usb connection is fine.
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Dec 9, 2010
Using Fedora 14. Printer usb connected and recognised with correct driver: Foomatic/PXL mono (Recomended). Will not print test page or anything else. Nothing seen in print queue.Iinitially choked by SElinux (since deleted). Still not working.
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