Question about Acer Aspire™ T180 PC Desktop

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I have just set up new desktop Acer. Error message: No input signal.

I have just connected brand new Acer computer with Emprex monitor. I have checked all connections. I switched on power. Nothing appears on screen except message "No input signal". I have also tried using User's Manual dvd provided, but this cannot be read on the dvd player for some reason. What shall I do?

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Check the website for drivers. But it seems to me that there is another problem most computer boot up no matter what screen is hook up. have you tried any other monitors ? If you have and the work im not sure what your issue is but i would say that most likely if another monitor works that it is the monitor but if none of them work it is a graphic card issue. If you could let me know what you are running and i can help more i.e what window's and what type of graphics card you are using

Posted on Oct 27, 2008

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eMachines flat-screen monitors offer high quality at low cost.
eMachines flat-screen monitors are compatible with most brands of PCs.
Issues with eMachines flat-screen monitors can arise from faulty power sources, cable problems and incompatible settings.
These issues can be resolved by testing step-by-step each possible cause.

Plug the computer's power cable firmly into a working AC outlet.
Press the computer's power button.
Check the LEDs on the front of the computer case to confirm that the computer receives power.
Plug the eMachines monitor's power cable into a working AC outlet.
Press the monitor's power button.
Check the LEDs on the front bezel or power button of the eMachines monitor to confirm that the monitor receives power.
Orange or blinking LEDs indicate low power or no signal.
Green LEDs denote a working connection..

Perform a monitor self-test.
Switch off the monitor.
Unplug the video cable from the monitor.
Press the eMachines monitor's power button.
An eMachines logo, Windows logo or "no signal" message indicates that the monitor is working properly.

Plug the eMachines monitor's video cable into the video port on the computer.
Attach the monitor's included DVI-to-VGA adapter to the monitor's VGA cable if your computer has a DVI port (15 or 25 pin-slots with 1 side slot) in place of a VGA port (15 pin-slots, no side slot).

Press the eMachines monitor's input button to change the monitor's setting to match the computer port used.
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Set your monitor to VGA if connected to your computer's VGA port.

Connect the eMachines monitor to a known working computer with a known working video cable if the problem persists. Contact Gateway, eMachines manufacturer, if the monitor issue is not resolved.

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Sansui no signal


Acer produces a number of LCD computer monitors. Acer's monitors range from 17 inches to 27 inches. Some monitors offer wide-screen viewing, embedded speakers, high-definition visuals, and various display connection ports. Acer computer monitor problems include common issues such as dead pixels, error messages, and blank screens caused by incorrect connections. Some reviewers have also detected image problems with DVD playback on some models.

"Input Not Supported" Error Message Acer computer monitors such as the G24 may issue an "Input Not Supported" error message when users set the display resolution too high. The G24's maximum display resolution is 1920x1200 with a 60Hz refresh rate. Maximum resolutions vary according to the specific monitor model and according to the capabilities of the computer's video card. b> "Input Out of Range" b> Some Acer computer monitors may report an "Input Out of Range" error message due to incorrectly set monitor refresh rates. Much like the display resolution, each monitor also has specific monitor refresh rates with which it is compatible. Blank Screen or "No Signal" Error b> Like other monitors, Acer computer monitors feature color-coded power indicator lights. If the power indicator light shows green, the contrast or brightness levels may be set too low and should be adjusted via the OnScreen Display. If this does not rid the monitor of a black screen, the monitor may be experiencing hardware failure. The "No Signal" or "Check Cable message" may indicate a problem with the monitor's cable connection with the video card. This error may also appear on a blank screen backdrop if the monitor is plugged into the incorrect port on the computer or if the computer is frozen and needs to be rebooted. Faulty power cords or outlets may cause the screen to be black and to show no power indicator color. b> Image Issues b> Some review sites such as CNET have reported problems with streaking and ghosting during DVD playback on some Acer computer monitors such as the AL1931. (A "ghost" is an identical offset image as the primary or desired image.) Unstable or unclear image issues may be caused by incorrectly programmed VGA timings or incorrectly installed monitor drivers. b> Dead Pixels b> Dead pixels and sub-pixels can cause a variety of display enjoyment problems. Acer will only accept returns on LCD computer monitors that have "more than four (4) defective pixels per million pixels." Further, the central area of the monitor may have no more than one defective pixel. Acer does not differentiate in warranty terms between pixels and sub-pixels. Hope this helps.

Jan 20, 2013 | Acer Aspire 4720 Notebook

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No Video


If its a flat screen monitor ?

eMachines flat-screen monitors offer high quality at low cost. eMachines flat-screen monitors are compatible with most brands of PCs. Issues with eMachines flat-screen monitors can arise from faulty power sources, cable problems and incompatible settings. These issues can be resolved by testing step-by-step each possible cause.

Plug the computer's power cable firmly into a working AC outlet. Press the computer's power button.

Check the LEDs on the front of the computer case to confirm that the computer receives power. Plug the eMachines monitor's power cable into a working AC outlet. Press the monitor's power button. Check the LEDs on the front bezel or power button of the eMachines monitor to confirm that the monitor receives power. Orange or blinking LEDs indicate low power or no signal. Green LEDs denote a working connection.. Perform a monitor self-test. Switch off the monitor. Unplug the video cable from the monitor. Press the eMachines monitor's power button. An eMachines logo, Windows logo or "no signal" message indicates that the monitor is working properly. Plug the eMachines monitor's video cable into the video port on the computer. Attach the monitor's included DVI-to-VGA adapter to the monitor's VGA cable if your computer has a DVI port (15 or 25 pin-slots with 1 side slot) in place of a VGA port (15 pin-slots, no side slot). Press the eMachines monitor's input button to change the monitor's setting to match the computer port used. Set your monitor to DVI if connected to your computer's DVI port. Set your monitor to VGA if connected to your computer's VGA port. Connect the eMachines monitor to a known working computer with a known working video cable if the problem persists. Contact Gateway, eMachines manufacturer, if the monitor issue is not resolved. Hope this helps.

Jan 03, 2013 | Computers & Internet

2 Answers

How do I fix the error no vga input signal no dvi input signal monitor going to sleep


Check if you VGA is properly settled in the PCI slot. Try to take it out, clean the slot for dust.
If that doesn't help, it is well possible that you VGA is not working any more.

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1 Answer

Input error


If you are getting the no input or out of range message on your screen then you will need to do one of the following:

No input
If you aren't getting signal then it means that your graphics card has failed. Make sure the video connectors are secure. If all connectors are in place and you still don't get a signal then you will need to:
Connect the video cable to onboard graphics if you were using a graphics card. If you're not using a graphics card then it means that your motherboard vgraphics has become faulty. You will need to consult a repair technition.

Out of range message
If you are getting this message then you will ned to change the refresh rate on your monitor. To do this boot your computer into safe mode by pressing F5 during boot up. Then right click on your desktop and click on properties. Then click on the Settings tab and click Advanced. Once in the Advanced settings click on the Monitor tab. Then all you will need to do is set the refresh rate down to a lower setting like 60 Hertz.

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I purchased a new Acer pc yesterday and am setting it up today. It says no signal on start up.. what am I doing wrong and how can I fix it? P.S: not really good with computers so please keep it...


This message is from your monitor ... there is something going on with your connection between the computer and the monitor. Check all connections - are you using the proper connection? Is there a switch to choose between several different methods? USB? RGB? Other?

Sep 22, 2010 | Acer Computers & Internet

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My emprex monitor has power but the image wont stay on. the screen somes on, shows an image for about 2 seconds then goes black.


This sounds like a backlight problem. I've had this with an acer laptop before and it needed a new backlight replacment under warranty.

Also check things like the connection cable, try it with a different pc, try a different (lower) screen resolution in case it's not compatible.

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