When I restarted my system (Karmic 9.10, Acer Aspire 3100, Atheros chipset) earlier this evening, I was startled to see that my wireless connection was no more. I knew I had seen that problem before, after a kernel update. So I went back one kernel version and rebooted, and up came the wireless. Some more investigation revealed that I needed to recompile madwifi under the new kernel and its headers. Sure enough, that solved the problem.
Still, it's a pain to go through this every few months when there's a kernel update, particularly since I don't always remember what the procedure is. It seems that there's some kind of configuration bug here, but I don't quite know where to turn to get it fixed. I'm fortunate that I was able to solve the problem reasonably quickly, but a less fortunate user could waste a lot of time and energy on it.
P.S. -- the procedure is to cd to the madwifi-ng directory and do a make && make install.
Still, it's a pain to go through this every few months when there's a kernel update, particularly since I don't always remember what the procedure is. It seems that there's some kind of configuration bug here, but I don't quite know where to turn to get it fixed. I'm fortunate that I was able to solve the problem reasonably quickly, but a less fortunate user could waste a lot of time and energy on it.
P.S. -- the procedure is to cd to the madwifi-ng directory and do a make && make install.