Sunday, June 21, 2009
Dell Studio Keeps Waking Up
I'll post this on the off chance someone else has the same problem and it helps to fix it. My Dell Studio 540 started refusing to sleep, or more exactly when I set it to sleep, it immediately woke up again. The powercfg utility and the System event log didn't give any useful information. What fixed this was doing to the driver settings (in Device Manager) for the Dell 1505 WLAN card and changing Wake-Up Mode to None. I had hunted around on the Web and not found anything that mentioned this, though there are many other possible solutions for similar problems. I did have an old driver (188.8.131.52 from 2007) and I have since updated it from the Dell web site, so maybe this would also fix it.