I take it your not using a video card? If you not I would guess you have integrated graphics. You can use the GPU's from your graphics and mine using them. I use them on my PC.
I use BFGminer 3.1.4 and here are my settings for the conf file. It might give you about 40 Kh/s or so. It all depends on your system.
{
"pools" : [
{
"url" : "POOL_URL:PORT",
"user" : "USERNAME.1",
"pass" : "PASSWORD"
}
]
,
"intensity" : "10",
"vectors" : "1",
"worksize" : "128",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "1028",
"shaders" : "0",
"gpu-engine" : "760",
"gpu-fan" : "0-85",
"gpu-memclock" : "800",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "60",
"temp-overheat" : "57",
"temp-target" : "55",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}