You're not finding any shares, you need hundreds of megahash to effectively mine scrypt. Your intensity is too low, 12 is basically off idle. turn it up to at least 18. The hash rate is pitiful, my ancient 5770 is hashing faster than that right now. Increase your intensity until you get hw errors, if you cant reach 20, increase thread concurrency a bit, but 8192 probably fine, i would guess it'll run at intensity 20
I doubt you'll find any shares because the pool will move to a new block before you ever find one. You need a long block time scrypt coin and maybe you'll find a share in time. I've never used hamster pool.
Honestly change the kernel to x11 and point it at wafflepool just to make sure its all working..here's a config from one of my rigs.
5x290's, i've removed some pool details. This rig gets about 4.4mhs scrypt, 24mhs x11. I've got one funky card that runs hot and it need lower intensity, 18, probably needs new thermal compound.
{
"pools" : [
{
"url" : "",
"user" : "",
"pass" : "x"
},
{
"url" : "stratum+tcp://uswest.wafflepool.com:3331",
"user" : "",
"pass" : ""
},
{
"url" : "stratum+tcp://asia1.darkcoin.miningpoolhub.com:20465",
"user" : "",
"pass" : ""
},
{
"url" : "stratum+tcp://europe1.darkcoin.miningpoolhub.com:20465",
"user" : "",
"pass" : ""
}
],
"kernel" : "x11mod",
"thread-concurrency" : "32765,32765,32765,32765,32765",
"worksize" : "256,256,256,256,256",
"lookup-gap" : "2",
"intensity" : "20,20,20,18,20",
"gpu-fan" : "0-100,0-100,0-100,0-100,0-100",
"gpu-powertune" : "0,0,0,0,0",
"temp-cutoff" : "95,95,95,95,95",
"temp-overheat" : "90,90,90,90,90",
"temp-target" : "80,80,80,80,80",
"auto-fan" : true,
"no-submit-stale" : true,
"expiry" : "1",
"failover-only" : true,
"gpu-threads" : "1",
"log" : "5",
"queue" : "0",
"scan-time" : "1",
"temp-hysteresis" : "3",
"kernel-path" : "/usr/local/bin"
}