Not a laptop, but when I had a similar problem (old PC with VGA Out, new tv only has HDMI In) I just bought a graphics card and slotted it into the PC, and now have HDMI --> HDMI
Being as you have a laptop though I don't know if you could upgrade the graphics? or add a graphics card to it??

Being as you have a laptop though I don't know if you could upgrade the graphics? or add a graphics card to it??