I have done several hours of searching and I am still looking for a few USB wifi adaptors that run in 12.04 with no additional driver installations or other fiddling. I am looking to plug in the adaptor and have the laptop recognize and start connecting. We have 30 older laptops with flaky internal wifi cards so I thought that if I could find a $10-$20 USB adaptor that work reliably in 12.04 I could plug it in and solve all my connectivity problems for a few hundred dollars.
closed as off-topic by Braiam, fossfreedom♦ Oct 5 at 6:34
- This question does not appear to be about Ubuntu within the scope defined in the help center.
Hardware drivers are a function of the linux kernel and therefor depend on the kernel version more then the version of Ubuntu (although they are somewhat related).
It is best to search for a hardware compatibility list, the problem is these are often "user maintained"
The one I like is h-node, associated with the FSF
I would encourage all users to contribute to hardware compatibility listings.
Sadly my answer is that I couldn't find a USB wifi adaptor that worked and met our needs. Here are the four that I ordered and the various problems we encountered.
Edimax Technology Co., Ltd EW-7722UTn 802.11n Wireless Adapter [Ralink RT307x] Instantly recognized and connected, but 10% packet loss
Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS] Lists SSID's and attempts to connect, but never actually connects
ASUSTek Computer, Inc. USB-N10 802.11n Network Adapter [Realtek RTL8188SU] Not recognized by network manager or wicd-network manager reports the adapter but says disconnected and doesn't list any SSID's to join
BELKIN F5D7050 Wireless G Network Adapter IEEE 802.11g RT2500usb Connects fine, but is 4 inches long so doesn't really work for laptops in a classroom environment due to risk of breaking so didn't pursue
I would just like to add to this thread. I installed Ubuntu 12.04 on a HP Mini 110 netbook. Same issue, the OS did not recognize the internal Wifi adapter. I found on Amazon a 802.11n USB 150 Mbps wifi dongle sold by Panda One. They have a Linux-specific disk that has the installation files specifically for all flavors of Linux, Mint, Ubuntu and Fedora, which would include an uncompiled driver for older versions (i.e., < Ubuntu 11.10) and for later versions,the adapter is plug and play. It worked immediately for me.