I is a 15.4 widescreen display, why not now 1021280X800 hours …

My wide-screen display is 15.4, can be used before 1021280X800, it is sometimes, and sometimes not, I would like to ask why this is?
Is 865 integrated graphics board, BENQ display.

me, I understand what you mean.
your chassis and the display is only one power supply.access by the host power supply, and then host power supply Power on again with a power to the display.
Oh, I have seen this kind of computer.
Not direct your question to buy a good display.
On display are a direct Plug Power Line board.OK then another on the card.
You that power and video display are from the host is not it? 4183 would like to help you! Should be able to, when it can not be used? Specific to say about it?