Also happening to me on a Dell Latitude D620. The wifi sometimes works -- but if I disable it with the switch on the side of the machine (e.g., if I'm on a hard-wired network connection and don't want to go wireless), it won't come back if I use the switch to reenable it -- even if I suspend/resume.
Output of "uname -a": Linux rde-richw-2 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 16:20:31 UTC 2009 i686 GNU/Linux Output of "lspci -vvnn" attached. ** Attachment added: "lspci.out" http://launchpadlibrarian.net/37630152/lspci.out -- Karmic - "Enable Wireless" button greyed out and won't enable https://bugs.launchpad.net/bugs/497623 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs