The HDMI display will show all supported screen resolutions if your TV is detected as digital television named Sharp LC-42SB48UT, otherwise the TV EDID will not recognized supported resolutions. Make sure you install TV monitor INF drivers.
you can also try the custom scaling option in the intel UI
Open Intel UI by either pressing Clt+Alt+F12 key or by right click on desktop->Graphics Properties
Go to display settings
You should see the option of custom scaling and 2 sliders for adjusting the scaling.
Try to reduce the setting and click apply.
your problem should be resolved.
Thank you for the suggestions.
Allan: The display is recognized correctly by the computer, down to the brand and model number, but there are no monitor drivers available and the resolution/image scaling is still incorrect.
Rahul: I had noticed this option before. I can bring the horizontal dimension into the screen correctly, but the slider does not allow me to alter the vertical dimension - it resets to 100 every time and the vertical dimension of the image does not change on the screen.
I have the exact same problem as the one described by jjfoshay. I have tried the solutions proposed in the first two answers to his post, but I encounter the same difficulties jjfoshay illustrates in his reply. Moreover, I have tried to connect to different HDTVs (different both in brand and model) and they all give the same outcome. Let me also add that this problem persists, although with a slightly different magnitude, both when the laptop lid is closed and when it is open.
Updated drivers are posted at the following URL
Please try to install that driver when it finishes downloading, to verify that your system will accept it.