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Lenovo C240 Support Question

Lenovo C240 Support Question

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Question posted by saleethsalee93 on June 16th, 2021

My Diplay Is Not Working

yesterday ninght when iam using system sudennly it got blank

Current Answers

Answer #1: Posted by techyagent on June 16th, 2021 6:14 AM
This answer was accepted by the poster of the original question.
techyagent

Member since:
June 17th, 2014

Points: 4,799,790
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Check Power

Make sure the PC has power (sound or lights), see Troubleshooting No Power Issues.

Check for Logo or BIOS screen

If nothing is displayed on the screen, see if the logo screen or BIOS screen can be displayed.

Check cables if using an external monitor

  1. Make sure the correct cables are connected from the PC to the monitor.
  2. Make sure the cables are not loose.
  3. Make sure the power cable is firmly attached to the monitor.
  4. Consider trying a different monitor or cable, if available.
  5. Try connecting the monitor to a different PC, if more than one is available.

For more information, see How to connect to an external monitor - ThinkPad - Windows 10
https://support.lenovo.com/solutions/HT509850

Check Display Settings

  • For general display issues, check display settings.
    Right-click the desktop, choose Display settings, and see options for changing display settings.
  • Some flickering issues may be resolved by changing the refresh rate.
    Right-click the desktop, select Display settings, Advanced display settings, Display adapter properties for Display 1, and then select the Monitor tab. Select a refresh rate that is supported by the monitor.
  • For basic troubleshooting steps, see Troubleshoot screen flickering in Windows 10.
    https://support.lenovo.com/solutions/HT501290
  • View display settings in Windows 10
    https://support.microsoft.com/en-us/help/4027860/windows-10-view-display-settings

Update or Roll Back Drivers


https://pcsupport.lenovo.com/in/en/products/desktops-and-all-in-ones/lenovo-c-series-all-in-ones/lenovo-c240-all-in-one/10113/solutions/ht510324-troubleshooting-display-or-monitor-issues



Thanks


Techygirl
Answer #2: Posted by SonuKumar on June 16th, 2021 8:33 AM
SonuKumar

Member since:
May 9th, 2021

Points: 16,615,400
100
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https://pcsupport.lenovo.com/in/en/products/desktops-and-all-in-ones/lenovo-c-series-all-in-ones/lenovo-c240-all-in-one/10113/solutions/ht510324-troubleshooting-display-or-monitor-issues

https://www.youtube.com/watch?v=jAcYuHdiO9k

https://www.youtube.com/watch?v=dn93tsSpRuU

https://www.youtube.com/watch?v=Uusn6mB71qU

https://www.youtube.com/watch?v=PkWXrt6aJ3k

Why won't my Lenovo laptop detect my monitor?

Make sure the correct cables are connected from the PC to the monitor. ... Make sure the power cable is firmly attached to the monitor. Consider trying a different monitor or cable, if available. Try connecting the monitor to a different PC, if more than one is available.

Why is my Lenovo screen not working?

Causes of a Lenovo Black Screen

They include: Hardware errors: If the hardware components or peripherals such as cables are worn out, they could cause the screen not to display. A faulty display: If there is something wrong with the display, it could cause it to stop showing the picture

How do I fix my Lenovo screen?

Solution

Check Power.

Check for Logo or BIOS screen.

Check cables if using an external monitor.

For more information, see How to connect to an external monitor - ThinkPad - Windows 10. ...

Check Display Settings.

Update or Roll Back Drivers.

Try different applications.

Get support or warranty help.

How do I get my Lenovo to recognize my second monitor?

Click on System. Click on Display. Under "Select and rearrange displays," click the Detect button in the bottom-right corner (if available).

What to do if monitor is not displaying?

Check the Power

Unplug the monitor from the wall.

Unplug the cord from the back of the monitor.

Wait one minute.

Plug the monitor cord back into the Monitor and a known-good wall outlet.

Press the Monitor power button.

If this still does not work, try with known-good power cord.

Why won't my computer detect another display?

A buggy, outdated, or corrupted graphics driver may be one of the main reasons why Windows 10 won't detect your second PC monitor. To resolve this issue, you can update, reinstall, or roll back the driver to a previous version to fix and restore the connection between your computer and the second monitor

Make sure the PC has power (sound or lights), see Troubleshooting No Power Issues.

Check for Logo or BIOS screen

If nothing is displayed on the screen, see if the logo screen or BIOS screen can be displayed.

Recommended way to enter BIOS - ideapad

Recommended ways to enter BIOS - ThinkPad, ThinkCentre, ThinkStation

Recommended way to enter BIOS for Lenovo Desktops & All-In-Ones - Windows

Check cables if using an external monitor

Make sure the correct cables are connected from the PC to the monitor.

Make sure the cables are not loose.

Make sure the power cable is firmly attached to the monitor.

Consider trying a different monitor or cable, if available.

Try connecting the monitor to a different PC, if more than one is available.

For more information, see How to connect to an external monitor - ThinkPad - Windows 10

For general display issues, check display settings.

Right-click the desktop, choose Display settings, and see options for changing display settings.

Some flickering issues may be resolved by changing the refresh rate.

Right-click the desktop, select Display settings, Advanced display settings, Display adapter properties for Display 1, and then select the Monitor tab. Select a refresh rate that is supported by the monitor.


Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful.

Regards,
Sonu
Your search handyman for all e-support needs!!

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Lenovo C240/245 All-In-One PC Hardware Maintenance Manual ideaideaideaCentreidea Machine Types: 10113/6268 [C240];10114/6269 [C245]
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Lenovo C240/245 All-In-One PC Hardware Maintenance Manual Machine Types: 10113/6268 [C240];10114/6269 [C245]
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iv Lenovo C240/245 All-In-One PC Hardware Maintenance Manual
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... toutes les consignes de type DANGER et ATTENTION du présent document avant d'exécuter les instructions. It is intended only for Lenovo C240/C245 All-In-One computers listed on the cover. Chapter 1.
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2 Lenovo C240/245 All-In-One PC Hardware Maintenance Manual
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... mirror. This surface is near power supplies - do not become a victim yourself. 4 Lenovo C240/245 All-In-One PC Hardware Maintenance Manual Many customers have handles covered with a soft material ... - By observing the above rule, you need to insulate you work on electrical equipment. Use only one hand when working on a computer that supplies power to the machine and to decrease...
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... opening covers on your skin to provide a static-free work mat to eliminate static on this product or attached devices. 6 Lenovo C240/245 All-In-One PC Hardware Maintenance Manual You can...ground braid, or green-wire ground. - Note: The use of a grounded work surface. Use an ESD common ground or reference point when working on AC-operated computers. Safety notices The CAUTION and DANGER...
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≥18 kg (37 lbs) CAUTION: Use safe practices when lifting. ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) CAUTION: The power control button on the device and the power switch on top of rack-mounted devices. 8 Lenovo C240/245 All-In-One PC Hardware Maintenance Manual The device also might...
Hardware Maintenance Manual - Page 15

...: Input voltage: 90V-264V(AC) Input frequency: 47Hz-63Hz © Copyright Lenovo 2012 9 Specifications This section lists the physical specifications for your computer. Type Lenovo C240/C245 This section lists the physical specifications. Environment Air temperature: Operating: 10° to 35°C Transit: -20° to 55°C Humidity: Operating: 35...
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...password, then press the Enter key. Leave each new password line item blank, then press the Enter key. For more information, see "Starting ...Enter key. 3. After you set an Administrator Password if you must use your changes have been saved. 5. A Setup Notice will be ...Select Save Changes and Exit from the menu. 14 Lenovo C240/245 All-In-One PC Hardware Maintenance Manual If you ...
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...the Startup Device Menu does not permanently change the startup sequence. 16 Lenovo C240/245 All-In-One PC Hardware Maintenance Manual SATA Mode Onboard Audio Controller .... Return to enable or disable the Onboard Audio Controller. Selecting a temporary startup device Use this procedure to the audio connectors (e.g. Select ATA Drivers Setup, press the Enter key...
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...removed and the problem continues, replace the system board. 20 Lenovo C240/245 All-In-One PC Hardware Maintenance Manual Extended video memory c.... does the following components (if connected or installed) one at a time. Make sure the boot drive is working correctly • Starts video operations • Verifies that certain options are held pressed during POST. Undetermined problems ...
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