Your original, "I can connect the TV as a extension monitor ..." statement sounded to me that you only had the cables connected but did not make clear that it worked correctly.I said that it works when I choose extend monitor but not clone.
but if I choose clone monitor, the video output in the TV is with random lines.
I can use the device to clone montor in the desktop
Are you looking for the solution to your computer problem? Join our site today to ask your question. This site is completely free -- paid for by advertisers and donations.
If you're not already familiar with forums, watch our Welcome Guide to get started.
Join over 807,865 other people just like you!