My related problem was that GRUB2 would not recognize a USB keyboard. I discovered a BIOS setting for USB keyboard support (document says for DOS mode) that was Disabled by default. Enabling that feature fixed my problem.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/990870 Title: External USB keyboard not working in Ubuntu 12.04 Status in “linux” package in Ubuntu: Fix Released Bug description: Recently upgraded my Ubuntu 11.10 installation to 12.04 on my ThinkPad T400. I use dm-crypt which asks for password at boot. External USB keyboards will not work to type the password in. I must use the keyboard on the laptop itself, which is a problem since I use a docking station. The USB keyboard works after I get into the GUI if I unplug it and plug it back in. I already ran a 'dpkg --configure -a' and a 'dpkg- reconfigure -a', with no luck. I installed a fresh copy of 12.04 on the same system and have the same exact issue. Let me know what debugging info you need, as well as how to retrieve it. This seems to be a serious bug that others are experiencing on other hardware platforms. Kernel is 3.2.0-24.37-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/990870/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
