according to http://benlynn.blogspot.com/2008/03/thinkpad-x61-wireless- and-ubuntu.html it's all about upgrading the iwlwifi microcode (which is what you should be doing if you're reading this looking for a quick fix).
I'm currently testing this fix on a Compal FL90+, also driven by the iwl4965 module. I recommend pushing the fix out asap, the ucode has been available since November and this is hitting a lot (a lot!) of laptop users. -- iwl4965 drops out from time to time (Santa Rosa) https://bugs.launchpad.net/bugs/144621 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