I own an HDTV with a native resolution of 1360x768.
Sometimes I plug in my laptop to watch movies, and I used to do it with a VGA cable. I've had no problem setting the laptop to the TV native resolution with the VGA cable (1360x768).
Having acquired an HDMI cable recently, I can't go past 1280x720, and if I do, the TV displays "invalid format". At 1280x720, the image is viewable but not centered, so for example I can't see the windows taskbar or titlebars.
I've tried both cables (VGA and HDMI) with the same settings: Laptop's display turned off and trying to set the Tv's native resolution.
What could I try to fix this issue? Could it be a faulty cable? (I'm using a Thinkpad with Windows 7)
EDIT: My graphics adapter appears listed as Mobile Intel(R) 4 Series Express Chipset Family (Searching for my laptop's model yields Intel GMA 4500MHD as the graphic card)
I'm downloading a driver update from Intel's website. I'll report my progress when I check its behavior tomorrow.