According to NVIDIA GoForce 5500 Handheld GPU Technical Specifications:
- Support for XGA [1024x768] LCD
The best it can do is probably SXGA, which is limited to 1280 x 1024, and that also is beyond its real native resolution.
Only one solution: Upgrade the video card to get anything better than that.
OK, the above may not be exactly the same card, but it does point a finger.
Look, there is no black magic involved. For what you want, there are pre-requisites:
- Installing the latest NVIDIA drivers
- The card must support the resolution
- The video-out VGA outlet must support a
high enough XGA protocol (WUXGA
- The monitor must support the resolution
Your claim that all all the conditions are fulfilled, but the resolution isn't there, is simply not logical. One of these assumptions must be false.
You can proceed by the process of elimination. Try using a better and more recent video card, to see whether this solves the problem. If it does, then that's the problem. If not, you can examine the other variables. It can always be that the video card is simply defective.