|Should have wrote it down I meant F5 not F8. |
I looked up the manual and Fn F4 is the toggle and Fn F5 is screen blank.
Fn + F5 > the Screen blank works but but Fn + F4 toggle between internal and external doesn't seem to function.
I was wondering if a bios clear / reset to default would straighen it out but I can't find how to clear cmos in manual.
Compaq Presario SR2010NX
Athlon X2 6000+ 3.0Ghz
4GB DDR2 800
nVidia 512mb video
Segate 500 gig sata
NEC ND-3500AG DVD R/RW
Linux Mint 14 Cinnamon