I am trying to get my RTL8188CUS USB wifi dongle to work. The kernel module(s) for it currently are not working but are included in the kernel anyway. So I have to get a driver from the Realtek website which creates the 8192cu kernel module, which I place in /etc/modules. I place rtlwifi, rtl8192c_common, and rtl8192cu (the non-working modules) in /etc/modprobe.d/blacklist.conf. On my laptop running Lubuntu 12.04, this works perfectly and I can connect to wifi.
However, on my desktop machine running Kubuntu 12.10, after doing these same steps, the wireless will not connect. The correct modules are blacklisted, and 8192cu is loaded, but there is one module, 8139too, that shows up even when it is placed in my blacklist.conf. I think this is what is causing the problem. When I look at the wirless device details in KDE's network manager, the driver name reported is "rtl8192cu", which is not what should be there.
Can anyone tell me what is going on here or how to get rid of that pesky 8139too? I read that the 'mii' module causes my unwanted module to be loaded anyway, but I do not know how to set that right if that is indeed the issue.