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May 8th, 2009 15:00
Monitor, mouse and keyboard unable to connect with computer
Hi everyone. I have a problem that I have never seen before. My 2-year old Dell desktop just stopped connecting with the monitor, mouse and keyboard. All of these things have been connected for the past two years, nothing new has been added. When I "jiggled" the mouse to wake up the computer , the computer came on (I can see the light on the tower and it made the usual start-up sound). The monitor did not come on...the lights (on it) remained yellow. When I turn the monitor off and on, the lights turned green for a short period of time (the screen remains black) then the screen says "entering power save" and the monitor light return to yellow. A couple times the screen said there was no connection with computer. The keyboard also says "no connection". I disconnected/reconnected everything with no change. Has anyone else seen this problem? Thanks for any ideas.
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fireberd
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May 8th, 2009 17:00
I assume you are referring to the problem, returning from the standby mode. Have you actually restarted the PC? or left it as it is? If you haven't restarted the PC do that and see if it comes back OK. Since nothing is responding you will have to use the front panel power switch to power it off by holding the power switch in until it does power off, wait a few seconds then power back on and it should boot up.
1cairobeller
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May 9th, 2009 07:00
Thank you for your help...I tried rebooting several times with no change. When I reboot the computer, the monitor remains blank. The only time the monitor reacts is when I turn it on. A message appears :"entering standby mode" and the screen goes blank. The message on my wireless keyboard says "no connection". Could a virus have affected the communication from the computer to the peripherals?
fireberd
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May 9th, 2009 13:00
This is different than what you originally posted, or at least how I interpreted what you posted.
It would appear the PC is not booting at all. What model PC is this so I can look up the diagnostic data, such as the various colors of the power indicator light. Can't really say much more without the PC Model Number.
1cairobeller
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May 11th, 2009 13:00
It's a Dell Dimention E521. When I turn the computer on, it makes start-up sounds and the light (around the "on" button) turns green but the monitor remains black (and the monitor's light remains yellow) - also the keyboard says "no connection".
The only time I get a response from the monitor is when I press it's on/off button. The screen will say "entering power save" and the light will turn green but within 10 seconds the screen goes black and the light turns yellow.
Rick & Sharon Fitzpatrick
Dev Mgr
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May 11th, 2009 13:00
Other than the green powerled, these are a classic no post, no video symptoms.
First, verify your monitor doesn't have multiple inputs and is set to the wrong input device (my monitor here has a little button with an arrow pointing into a rectangular box that allows me to pick between the digital (DVI) and analog (VGA) plugins.
If you confirmed it's not just the monitor being set to the wrong input, I'd suggest to first power off the PC (tower), then disconnect every single cable from the back (no exceptions). Now plug in the power cable only and power up the PC. You should get a few beeps. Check if the powerled is green and check the numbers on the front of the tower; they have a meaning (check here).
If it shows to be ok so far, power off the PC and hook up only the monitor. Then power up the PC again and see if you get anything on the screen. If this works, power down and hook up a keyboard and mouse and verify all is working. Then start re-connecting the rest till you find your culprit.
If the monitor doesn't show anything when it's the only connected device (other than the powercable), you're most likely having a problem with something inside the computer (tower). If this is the case, please post back as troubleshooting then becomes a bit more complicated for someone not familiar with the insides of a computer.