Posted 29 January 2008 - 03:22 AM
My Dell computer came with a flat-panel monitor. Recently it started blacking out with no warning. Repeatedly pressing the power switch would sometimes clear it up.
I took it to a repair shop. It worked perfectly.
Last week, as soon as I plugged it in, it went haywire, with only parts of the screen - in sort of a checkerboard pattern - being active.
When not plugged into a computer, normally the test pattern appears. Today I plugged it into my old Compaq; first the test pattern went away and the screen went totally black. I disconnected it, and the test pattern returned. Later I tried it again, but this time the test pattern remained on the screen as it it weren't plugged in.
I plugged it into my laptop. Again the test pattern stayed on the screen, as if it weren't plugged in.
Earlier today I had taken it back to the repair shop. It worked perfectly.
What should I do? (And don't say "sell it to the repair shop". I'm already considering that).