I have a Dell Inspiron 1525 (1280x800 resolution) connected to an LCD TV Dynex DX-32L150A11 (aspect ratio 16:9, native resolution 1366 x 768, resolution 720p, according to reviews.cnet.com ) by VGA cable.
Why is the native resolution 1366x768 but resolution 720p? Isn't 720p supposed to mean 720 pixels across?
I have a 1080p video file (BD rip, resolution 1920x1080) played on VLC-player and display it on my extended screen (which is the TV, numbered 2). When I go to "Display Settings" to adjust the resolution of the 2nd monitor to 1920x1080, part of it on the left just becomes black and "inaccessible" as if it is cut off; I can't even move the mouse over there and nothing can be displayed on that part. I thought 1920x1080 resolution and 16:9 aspect ratio should match perfectly. However, 1280x768 seems to work best as it gets the entire 2nd monitor fully covered and the size of full-screen video maximized. Can you explain this?
Is it any good to have such a 1080p video since its resolution is larger than that of the 2nd monitor? Does that 1080p make any difference from a 720p version (resolution 1280x720)? I downloaded another similar video but 720p, compared, and saw that 1080p is better. But I'm not sure.