The Desktop displayed on the TV after connecting via
the HDMI port does not fit the screen.
Go to the Graphics Control Panel to adjust the screen
► For Intel graphics cards
Right-click over the Desktop and go to Graphics Properties
> Display > General. Adjust the Horizontal Ratio and
Vertical Ratio settings to fit your screen and click OK.
► For AMD graphics cards
1. Right-click over the Desktop and select Graphics
Properties > Desktop and Display > My Digital Flat
Panel > Expansion Options (Digital Flat Panel).
2. Adjust the control bar to fit the TV corners and click Apply.
I cannot hear any sound from the TV after connecting
via the HDMI port.
1. Right-click over the taskbar on the Desktop and click Play
2. Change the option to Digital Audio (HDMI), HDMI device,
HDMI Output or another option and click Set as Default.
Then click OK.