Mensagem original de: Farhan Ahmad ,
I also had this problem. Brought a brand new Samsung 40" LED TV and tried connecting two different Samsung laptops. The screens would just go dark for a few minutes and then I'd get a "No Signal". By trial and error I found that the issue was with the cable not connecting to the laptop. If you push the cable all the way into the HDMI port on the laptop it won't work. Try to pull out the cable a little bit. Not sure if the cable is faulty or there is some issue with the laptop's ports. The cable in question came with an STB and works well with it.