Running cgminer on old laptop
My lightningx6 batch file as follows...

cgminer.exe -o stratum+tcp://eu.clevermining.com:3333 -u btc address -p d=1024 -s //./COM5 --chips-count 256 --ltc-clk 258 --nocheck-golden
@pause

Been using this setup since August. Clock of 258 worked best for me.

Average over 3-4 months of running : 42.5Mh/s, 7% HW and 0.2% Rej. Pulling 1100W (yes 1100W !)

Hope it helps