Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Here's my environment: Lenovo W520, Win 7 Pro 64-bit (SP1) 20Gb memory connected to external keyboard, trackball and monitor through a KVM switch (various other machines/monitors on the KVM).

Here's the issue: all the power settings and screen saver values are set to never sleep or hibernate with maximum cooling, performance, etc. Yet when I switch to another machine, sometimes, but not always, after about two minutes, the W520 goes to sleep. There have been times when I start to see the screen dim and tap on the laptop's keyboard to try and stop the process, and I get no response.

While the most annoying occurrence happens when I am using another machine, I intermittently see the same behavior (when I have the W520 selected), but leave the keyboard and trackball idle.

Any help would be greatly appreciated.

share|improve this question

You must log in to answer this question.

Browse other questions tagged .