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Old 02-23-2010, 03:14 PM   #1
vitozilla
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Edimax EW-7128G WIFI problem in Ubuntu 9.10


Ok so i had an old Dell collecting dust and i've wanted to dive into Linux so i bought a wireless card for it. It's an Edimax EW-7128G, the reason i bought it is because there were multiple positive reviews on how well it works in linux. Ok, so i don't know linux at all. I installed Ubuntu to learn. I installed the card and as far i can see it's not working. It came with a disc with linux drivers yet i don't know how to go about using them. Thanks!
 
Old 02-23-2010, 03:24 PM   #2
GrapefruiTgirl
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You may be able to go about this one of several ways, and I do not know from personal Ubuntu experience which way might be best. The good news is that apparently that device has a Ralink chipset in it, which are fairly well supported by Linux..

Assuming the wireless subsystems in your 9.10 actually work at all, you may find this thread over here to be helpful: http://ubuntuforums.org/showthread.php?t=919921
It may be a slightly different version of *buntu, but the general idea of that thread should apply just as well.

In addition to (or in lieu of) the instructions on that thread I linked, there *might* be either a current in-kernel driver for the card already, OR, have a browse through the CD (EDIT: I see you did this )that came with your device, and see if there is a folder containing some Linux info or a driver that you can build. If there is a README file in that Linux driver folder, read it, and if possible, follow the instructions or show us what those instructions say and we will help.

Regardless how you begin to go about this, it may be tricky (wireless sometimes is with Linux) but keep us posted about what you do, and while we may need to try more than one approach, it looks promising, and we will try to help along the way.

Sasha

Last edited by GrapefruiTgirl; 02-23-2010 at 03:25 PM.
 
Old 02-23-2010, 03:40 PM   #3
vitozilla
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Hey, thanks alot. Ok, i've located the driver for it, unfortunately the only thing the .txt file tells me is which card the driver is for. The file is tar.bz2.

Edit: I unzipped to my desktop and in the folder is two folders: module and wpa_supplicant. There are no text files in either of these folders. I checked the manual and there is no talk of Linux at all. Thanks if anyone can help.

Last edited by vitozilla; 02-23-2010 at 03:51 PM.
 
Old 02-23-2010, 03:52 PM   #4
GrapefruiTgirl
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OK, well I will give some instructions here for how you would *normally* proceed with such a bz2 archive; I should mention though, that building such a driver from sourcecode (which is probably what is inside that bz2 archive) and installing it like this, is NOT what you would ideally do. Normally, we would like to make a PACKAGE (in your case, an Ubuntu package) which can be managed by your package manager, so if anyone else wants to step in here and give some better Ubuntu-specific instructions for this card/driver, I'm all ears. (As I mentioned, I don't use *buntu, so I'm just going to give generic instructions here on what to do with that .bz2 file)


So.. The .bz2 file is an archive, like a .ZIP that you might be familiar with from Windows. On linux, there are lots of GUI tools and whatnot, for dealing with archives, but here is a command-line command you can use to extract the archive. You do this in a console such as gnome-terminal:

Code:
shell$ tar xjvf <archive.tar.bz2>
So, the above should extract the archive, creating a new folder in your current directory, full of files.

If that works OK, then enter that folder:

Code:
shell$ cd <folder-name>
Now.. How to proceed? There may be a README or INSTALL file inside the folder. If so, read it. With any luck, it says something like "run ./configure, make, and then make install", so let's try that from inside the folder:

Code:
shell$ ./configure

.. you may see a bunch of crap fly by now ..

shell$ make

.. more crap should go by, and HOPEFULLY doesn't abort due to an error ..

shell$ sudo make install
Now, if you get this far with no troubles and no errors, let us know.
If something doesn't work, again, tell us what doesn't work, and copy/paste the errors you see, into your next post here.

If all went well, you have just built the driver. The next step will involve other stuff, which I may or may not be able to help with since I'm rather rusty with wireless, but we have loads of skilled members who have got their wireless running right now, so someone will be able to help.

Remember: there are other ways to go about this -- this is just one, generic, way to do it.

Sasha
 
Old 02-23-2010, 06:38 PM   #5
vitozilla
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Thanks so much for the help. I'm about 99% positive the card is defective. It wouldn't work in windows either. I'm going to replace it but i'm wondering if there are any other cards that are easily compatible in linux. It has to be a pci card. I'm not sure if i should get the same card or not.
 
Old 02-23-2010, 06:53 PM   #6
GrapefruiTgirl
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Well, if it won't work in Windows, (where historically almost everything works when it's in its heyday) then chances are reasonable good that it's defective, but that's not a 100% certainty. Case in point: I have an old scanner here that won't work at all on a Windows machine (it acted dead/broken), but works great with my Linux box.

Anyhow, based on what I was reading about your card, in that thread I linked, I get the impression that it's somewhat of a "legacy" device, so support for it may not be as current as for newer cards, and/or may not remain in the kernel (if it's there at all) in the foreseeable future.

If you were to opt for a new(er) device, what is important is NOT the name on the gadget, or on the packaging, but what chipset the manufacturer has used to make the thing.

Of late, Broadcom stuff has been increasingly well supported by Broadcom themselves, with their Linux STA driver (I have no clue if Broadcom makes PCI cards or not..) and there are also in-kernel drivers for a number of other broadcom devices.
Ralink is as you should have read, one of the better supported chipsets for Linux wireless, and there's another good one, don't quote me but it *might* be "Attansic" or "Atheros" (yes, I think it's Atheros).

What I suggest is you check LQ's HCL: http://www.linuxquestions.org/hcl/
And check linuxcompatible.com (or .net, whatever it is) and choose a device based on what others report success with.

Sasha

Last edited by GrapefruiTgirl; 02-23-2010 at 06:54 PM.
 
Old 03-19-2010, 04:56 AM   #7
al_bye
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Sorry for Hijacking

GrapefruiTgirl is correct on the Atheros Card's. I've used the UBUNTU Netbook Re-MIX with these cards in the Acer netbooks and they work great out of the box. Both with the Standard network manager and also WICD

Reason for my post is that I'm waiting for one of the cards mentioned about as it's a real cheap replacement for my old Linksys PCI Card.

Hopefully it should be here in the next few day's and I plan to a fresh install of 9.10. Out of interest where you running 32bit or 64bit as I know there has been reports of the Ralink chipset only working in previous versions of the 32BIT.
 
Old 03-25-2010, 03:55 PM   #8
al_bye
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I can confirm that Edimax EW-7128G works a treat with Ubuntu 9.10 out of box
 
  


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