Ubuntu

Since I updated the kernel my wireless connection doesn't work.

Asked by Fuzzy Logic

Well, the Summary says it all, it was I think last week when I got the message that updates were ready to install, since then I wasn't able to start Xorg or to go online with my Intel 3945 wireless card.

The first problem was solved easily, I just changed the name of the driver at /etc/X11/xorg.conf from "nvidia" to something else, and then installed the Restricted Drivers Manager via Synaptic and enabled the NVIDIA driver there. Since then it Xorg works.

But my second problem is still occuring. I can't get Ubuntu to go online. I had the same problem when upgrading to Feisty, but there it was just a matter of enabling the driver in the Restricted Driver Manager, just like with the NVIDIA card. Now it was enabled by default and it still is enabled, but the wireless doesn't work.

I see more people have problems with this, but I can't find any solution. Can anyone help me with this issue? Thanks in advance!

EDIT: Look at answer #8 for some more information.

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Antonio Pérez-Aranda Alcaide (ant30) said : 		#1

Are you using the generic kernel from repositories?
Have you check if your card is correctly detect?
For this last, you may put iwconfig on a terminal and you watch if some record don't say "no wireless extensions".
Maybe it could be a bug, I search if it has been reported.

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Antonio Pérez-Aranda Alcaide (ant30) said : 		#2

I link this to the real bug.
https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/96797

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Fuzzy Logic (djordje) said : 		#3

Antonio,

Thanks for your help. I see that the bug is already fixed, but how to I obtain that fix? Is it already released as an update or what should I do to get it?

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Antonio Pérez-Aranda Alcaide (ant30) said : 		#4

I don't have got these card, but I ask for other people with your Card and the haven't got any problems. If your card are detected, you may test to connect without any security actions to your router. For this, you need configure your router at open wifi , without mac protection, and with ESSID broadcast .

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Fuzzy Logic (djordje) said : 		#5

I'm sorry, Antonio, but I don't understand what you mean.

The strange thing is that everything was working just fine without me having to configure anything until I updated the kernel.

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Antonio Pérez-Aranda Alcaide (ant30) said : 		#6

Excuse me for my bad English, I am spanish.
You can force to downgrade your kernel versión, or install a previus release. It is very easy to do this with Synaptics. You must go to the installed package kernel, some like linux-image-2.6.20-generic, see the properties of the package, and on version tab, you can force to use a previous version. Other thing could be install a specific 386 kernel with its linux-restricted-modules.

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Fuzzy Logic (djordje) said : 		#7

Hi Antonio, thanks for your help. I appreciate it very much. I have the following kernel images installed:
2.6.17-10-386
2.6.17-10-generic
2.6.17-11-generic
2.6.20-15-386
2.6.20-15-generic
2.6.20-15-lowlatency
2.6.20-16-386 (new one)
2.6.20-16-generic (new one)

Since I got those last two from the update program I'm unable to use the wireless on all of those kernels.

Do you have any idea how I could solve this really annoying problem? Or anyone else reading this? Any kind if suggestion is welcome. Thanks...

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Fuzzy Logic (djordje) said : 		#8

Oh, and by the way, it is very strange to me that in the list of restricted drivers there is a Lucent/Agere linmodem controller driver, I have absolutely no clue what it is. But the strange thing is that it is enabled (so checked) but the status is Not in use.

Perhaps this has something to do with my problem?

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Best Fuzzy Logic (djordje) said : 		#9

I figured out what was wrong. It was actually a pretty dumb mistake of me. Somehow the wireless switch at the right side of my laptop was turned off. And by accident (really strange, but ok) that happened just when I installed the new kernel. So now everything works fine, I'm posting this from my wireless network.

But still, thanks for your help, you've been very helpful.