I'm running Xubuntu, and have done for quite a while. Right now it's at
14.04. I just hosed it somehow, and when I reboot I cannot log in
because the keyboard and mouse are being ignored.
It's not the hardware, because the grub menu works with the keyboard,
and going to a recovery version of the kernel also works but it's
console mode, not X. But when I try a normal boot, the cursor stays in
the middle of the desktop and the keyboard cannot enter my password. I
have to do a hard reset because 3-finger salute is also ignored.
The last thing I did was to change my nVidia settings by deleting one of
my monitors. That means X configuration, which also affects mouse and
keyboard. But I cannot find an xorg.conf file anywhere.
Probably I just need to find out where the config settings are kept, and
I can reset them from a backup. Does anybody know?