Hot answers tagged display
Definitely not the hard drive. It could be the screen or the graphics card, but it's more likely the graphics card given that the computer spontaneously rebooted. Easiest way to tell would be to hook up a different screen and see if you get the same results. If you do, then it's the video card. Your only option is to replace it.
Your hardware is pretty old (c. 2008), and it somewhat predates commodity dual monitor support. Q43/Q45 has an Intel GMA X4500 adapter if it's using on-board graphics. You neglected to list the make and model of the computer or motherboard, but as far as I can tell that adapter does support dual monitors in some configurations. It depends on the precise ...
It appears to be either the screen itself or the connection to the computer. Do the artifacts appear over the built-in monitor menu? If so, it's the screen. Does reseating either end of the video cable help?
Not likely possible. Normal VGA is uni-directional, so even if you managed to physically connect the PC's VGA-out to the laptop's VGA-out, it would be the electrical equivalent of driving two cars towards each other -- in a single lane! It may be possible to engineer a bidirectional VGA port that has automatic directional override, but it's either (a) too ...
If it's an old monitor you most likely have a problem with capacitors and inverter that powers it's back-light. On old LCD monitors there are cold cathode fluorescent tubes that provide back-light, unlike new LED type monitors. Try shining a strong light directly on the display and see if you get a glimpse of image. If you do - you have a back-light problem ...
Set the monitor as the primary display, 'Control Panel > Display > Settings > Identify' and move the displays around as you require.
This is a late response but it might help other people. I purchased the same monitor 1 hour ago and had the same issue. You simply need to swap the DVI input port, and then you can change it to 144 Hz.
Please check the official intel guide to dual monitors: http://www.intel.com/support/graphics/sb/CS-031040.htm if you meet the requirements, depending on your desired setup, choose either the clone configuration or extended setup configuration. Also note that in some situations, only it's supported DVI-D only, not DVI-I.
Only top voted, non community-wiki answers of a minimum length are eligible