My wife's HP Envy (Win7) goes to sleep very quickly when required but unfortunately on awakening the display is so dim that it's virtually useless. I suspect power settings on the graphics card but can't actually find how to change these. Or could it be something else? Strangely enough, it's one of the only laptops we've ever had in the house that connects with no trouble to our wireless network on wakeup. S**s Law, I suppose.
Dell Studio1558 with Win7 Home Premium 64bit 8GB RAM
IE9 and Live Mail
BT Infinity via HH3