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My Ubuntu 12.04 LTS does not detect any wireless network unless I reboot with the ethernet connected. With ethernet connection, both the WiFi and ethernet are detected and, even if I remove the cable, WiFi keeps working. However, each time, I am having to boot my laptop with the LAN connected to be able to use WLAN.

Hello following all the problems i was having, I felt annoyed and re-installed ubuntu from scratch. Now, I can connect to the ethernet connection but no wireless is detected at all (even with cable connected) . Trouble??

Here is my hardware configuration.

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Try running ifconfig before and after plugging in with ethernet and posting the results here. – InkBlend Aug 17 '12 at 18:26
Also you should open another question for the whole brightness issue. Please don't ask two questions in one post. I edited out the second question. – con-f-use Aug 18 '12 at 11:42
Does the information at askubuntu.com/questions/94021/… help get the wireless working again? – John S Gruber Aug 21 '12 at 2:31
In fact I got it to work ... there was no need to install the driver . – Sharat Aug 21 '12 at 16:27

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