I have just installed Xubuntu. My box runs quite slower than before when installed with Win7. I am wondering if I am missing some device drivers. I can use gnome-device-manager to list my devices.
In the device list view, I saw several blue question mark on the left side of devices. Based on my windows experience, the question mark should indicate the device is not properly configured. Is it the same with gnome-device-manager?
And most importantly, how could I know for sure whether or not the corresponding device drivers have been installed?