I can reproduce this bug too. I am running Ubuntu Karmic without the backport modules. I have just installed them too.
My WiFi card is: 07:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100 I attach my /var/log/messages so you can see the errors it generates. I didn't use dmesg because it was polluted with CPU downclocking messages because of the driver using 100% of the CPU and overheating it :) ** Attachment added: "/var/log/messages (gzipped)" http://launchpadlibrarian.net/35706901/messages.gz -- iwlagn creates cpu hog https://bugs.launchpad.net/bugs/404575 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