Computer goes into sleep mode when plugging USB device in.

Question

My Dell XP8300 with i7 processor and 8GB RAM with a AMD 6670 1GB graphics and DEll ST2320 LCD monitor is starting to act odd! A week ago I was finding that if I plugged any USB device in or plugged my SD card into the built in reader the monitor went black/sleep mode. If I waggled the mouse the screen woke up. But if I unplugged the device or removed the card the monitor shut down again! Rebooting the computer cured this issue. But tonight it started doing it again when I tried to play a CD. As the windows player appeared on the screen the monitor again went black. And after waking it up, found the previous sources (USB/card reader) would be it into sleep mode again. Another reboot and everything is fine- for now?

Apart from some windows updates about 11 days ago nothing has been added or removed or changed to my system. Any ideas?

I do have the monitor set to go into sleep mode after 30 minutes which has been working correctly. But even disabling this made no difference!

cheers

bill

osprey4 · Answer

Hi Bill, How is the monitor connected? Does this happen with all USB ports and devices?

Fly-Catchers · Answer

I use a DVI lead. When this has occured all USB ports are affected. As is the card reader and DVD player. I have had the computer about 18 months now with very little changes to it since new and nothing recently. And this issue only started just over a week ago. The only changes recently have been the offical windows updates.

sunderlandaz · Answer

I am having the same problem with my computer.  Were you able to resolve this issue?

osprey4 · Answer

Hi Sunderlandaz, Is this happening with all removable storage devices? What model and OS, please?

larissap112 · Answer

I'm having the same issue. Any removable device, cd rom, usb, etc. Rebooting stops the issue for a while, but it's back again. The usb I put in last (new usb, I'm guessing it had to install the drivers, too) it took a good 2-3 minutes of wiggling the mouse, clicking the keyboard, as the screen when to sleep and back 5-6 times.

XPS 8500 cor i7, windows 7 64 bit, 12 G RAM

osprey4 · Answer

Hi larissap112, Try disabling autorun.

otterpapa · Answer

I am having a similar problem. The monitor goes into power save mode at strange times. Opening some programs (like Dell Support Center), putting a disk in the DVD drive, connecting to USBs. I have an XPS 8300 running Windows 7, ST2320 monitor.

osprey4 · Answer

Hi Otterpapa, Power save mode is not the problem, just a symptom that your monitor has stopped getting a signal from the computer. The question becomes why. Is this a recent problem?

otterpapa · Answer

This has been happening since we bought the computer new from Dell. Why would opening a program or connecting something cause the computer to stop sending a signal to the.monitor?

osprey4 · Answer

Hi Otterpapa, I can't say without some diagnosis why this would occur. Is your 8300 still under warranty?

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Computer goes into sleep mode when plugging USB device in.

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