Same problem on Lenovo B320

[Capella163]

We also have a Lenovo B320 all-in-one, which we have had for about a week. We are having the same problem with the display going dark, but not as frequently as yours. We will try the solution of disabling the start-up programs except McAfee.

One semantic point. I believe you were not experiencing a sleep problem. If the computer goes to sleep, the light in the power on-off button will blink. If you touch the mouse or keyboard, it should wake up. In our case the computer, or actually just the display was freezing. I could still access the data on the B320 hard drive using the network connections to my other computer. So the B320 was still running, but the display would not respond. We have had to force a shut down by holding the on-off button in for a few seconds. So I believe you were experiencing a display freeze, which would not be corrected by changing the sleep timing.

At any rate, thanks for discovering the solution!

 

[Britton30]

Welcome to Seven Forums Capella163.

If you haven't tried any of the suggestions in this thread, start here: http://www.sevenforums.com/general-...s-7-keeps-going-into-sleep-4.html#post1608613

 

[gregrocker]

When you mention MucAfee it immediately sets off blinking lights and sirens here. We regularly solve problems by having users uninstall this very worst bloatware AV and replace it with Microsoft Security Essentials or Avast freeware which allow best performance of Win7.

 

[Capella163]

Welcome to Seven Forums Capella163.

If you haven't tried any of the suggestions in this thread, start here: http://www.sevenforums.com/general-...s-7-keeps-going-into-sleep-4.html#post1608613

I thought I was adding to the thread you indicate here. I did not mean to start a new one.

 

[Capella163]

When you mention MucAfee it immediately sets off blinking lights and sirens here. We regularly solve problems by having users uninstall this very worst bloatware AV and replace it with Microsoft Security Essentials or Avast freeware which allow best performance of Win7.

Thanks for that advice. I use Avast on my other machines. I was going to use the McAfee until the 60-day free period was over, then switch to Avast. But the B320 was so much trouble with constantly freezing up, I decided to send it back to Lenovo within the 21-day grace period. It's heading to UPS tomorrow.

 

[gregrocker]

Likely factory bloatware freeloading on RAM, CPU at startup.

For future reference: Clean up factory bloatware