Screen horizontally spread both side

[ironer201]

Hello Everyone . So I have a second Samsung monitor which is my brother and he gave that monitor to me. I plug my  brother's Monitor to my PC and it horizontally spread both side.I try  auto adjustment but it didn't work. I also try manually but it also didn't work.So I take this monitor to a local shop they plug the monitor with a old Laptop. They use auto adjustment and it worked fine. Is there any reason why my monitor is doing like this.
Note : I didn't plug 2 monitor at a same time . I have a LG 19 inch monitor and it work fine with my system

My PC spec
CPU : i5 3470S
Ram : 8GB DDR3 1333Mhz
GPU : GT 630 DDR3 2GB
HDD : 1 TB 7200RPM

Monitor : LG 19.5 Inch(1440 X 900) & Samsung 19 inch (1366 X 768)

 

[mariushm]

Auto-adjustment is only for analogue inputs (VGA) - if you feed the monitor through digital inputs (dvi, hdmi, displayport) it won't work.

 

You need to configure the resolution properly, to the right value, 1440x900 or 1366x768 , on each monitor.

 

Set the refresh rate correctly to 60 Hz - don't set a higher value even if it's available, because the LCD panels inside the LCD monitors can not actually refresh more than 60 times a second. You may see there 70 Hz or 75 Hz, it doesn't mean you'll get 75 updates a second on screen, just that for backwards compatibility with vga signals, the processor inside the monitor can receive up to 75 frames a second, but will throw out the excess and only update the lcd panel 60 times a second.

 

Then, look in the video card control center / settings and look at Pan & Scan options, look for Overscan, Underscan etc ... those are options typically used with HDMI but can be used with other video connectors, which basically may zoom the image a bit so that a few lines on the sides of the monitor/tv go outside the visible area.

 

[ironer201]

2 hours ago, mariushm said:

Auto-adjustment is only for analogue inputs (VGA) - if you feed the monitor through digital inputs (dvi, hdmi, displayport) it won't work.

 

You need to configure the resolution properly, to the right value, 1440x900 or 1366x768 , on each monitor.

 

Set the refresh rate correctly to 60 Hz - don't set a higher value even if it's available, because the LCD panels inside the LCD monitors can not actually refresh more than 60 times a second. You may see there 70 Hz or 75 Hz, it doesn't mean you'll get 75 updates a second on screen, just that for backwards compatibility with vga signals, the processor inside the monitor can receive up to 75 frames a second, but will throw out the excess and only update the lcd panel 60 times a second.

 

Then, look in the video card control center / settings and look at Pan & Scan options, look for Overscan, Underscan etc ... those are options typically used with HDMI but can be used with other video connectors, which basically may zoom the image a bit so that a few lines on the sides of the monitor/tv go outside the visible area.

 

I use the VGA input and I didn't  use dual monitor.