When a desktop at our house is on sleep, and the monitor is off, I wake the computer. I will, within a second, see the light on the monitor switch to blue (indicating that it is on), and the arrow signifying the cursor can be seen (and moved with the mouse). But the signal from the rest of teh computer is not displayed. I did this just now, and it took 11 minutes, 30 seconds for the log in page to display. Yesterday I updated the graphics drivers. It did this again, this morning, so I don't think it is the drivers. The desktop is an older model, an HP Pavillion P6650z; the monitor is an LG WRT1952TQ. The monitor is 7 years old, but other than this seems to be working just fine. I believe the desktop is a year or so older.