To increase the horizontal size, 1 click start, 2 point to settings, then click control panel – ATI Technologies RADEON 137-40225-20 User Manual
Page 27: 3 double-click display, 5 click on the ati displays tab, 6 click on the tv button, 7 make sure you’re on the adjustments tab, 9 click apply to save the changes you have made, To change the brightness, 8 click apply to save the changes you have made

This manual is related to the following products: