I'm encountering similar issues on a Dell M1330 with a 4945AGN rev 61. Upon resume from suspend, if the rfkill switch was on at time of resume, to get wifi working again I must rmmod iwlagn then modprobe iwlagn after re-enabling the wifi using the hardware kill switch.
I've attached my dmesg and the output of `lspci -vnvn'. The most recent resume had the problem. ** Attachment added: "`dmesg' from xps m1330" http://launchpadlibrarian.net/25103917/dmesg_xpsm1330.txt -- Wireless driver hangs after resume, occasional kernel panic on 'Enable Wireless' https://bugs.launchpad.net/bugs/337627 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