Last updated: August 30, 2026
Display problems are common after a Windows update, graphics driver change, hardware upgrade, or computer move. You may see a black screen, flickering display, wrong resolution, distorted graphics, random crashes, or a message that Windows cannot start the graphics device correctly.
The problem can come from Windows, the graphics driver, the graphics card, monitor, display cable, power supply, or overheating.
This guide explains how to troubleshoot common display problems in Windows 10 and Windows 11 before replacing hardware.
Table of Contents
- Common Display Problems
- Before You Start
- Restart the Computer
- Check the Monitor and Display Cable
- Check Windows Display Settings
- Check the Graphics Driver
- Update the Graphics Driver
- Roll Back a Problematic Driver
- Reinstall the Graphics Driver
- Try Safe Mode
- Check for Windows Update Problems
- Check for Overheating
- Clean Dust From the Computer
- Check the Graphics Card Installation
- Inspect the Graphics Card for Physical Damage
- Check the Power Supply
- Test With Integrated Graphics
- Test Another Monitor
- Check for Screen Artifacts
- Reset Graphics Settings After GPU Overclocking
- Check Other Hardware Problems
- When the Graphics Card May Need Replacement
- Quick Troubleshooting Checklist
- Frequently Asked Questions
Common Display Problems
Display problems can appear in several ways:
- Black or blank screen
- Screen flickering
- Incorrect screen resolution
- Stretched or distorted graphics
- Lines or artifacts on the screen
- Display driver crashes
- Monitor shows "No Signal"
- Games cause the display to freeze or crash
- Screen works in Safe Mode but not normally
- Graphics card is not detected
- Windows shows a graphics-device error
- Display problems begin after a Windows update
If your screen is specifically flickering, see our guide on how to fix screen flickering in Windows 10 and 11 .
Before You Start
If the display problem appeared immediately after installing a new graphics card, moving the computer, or changing cables, start with the physical checks in this guide.
If Windows still starts normally, save your important files before making major driver or hardware changes.
If the computer has no display at all, also check our guide on how to fix a laptop black screen .
1. Restart the Computer
A temporary graphics driver or Windows problem can sometimes cause the display to stop working correctly.
Restart the computer normally and check whether the problem returns.
If Windows is running but the display is frozen, press:
Windows + Ctrl + Shift + B
This keyboard shortcut resets the Windows graphics driver. You may hear a beep and see the screen briefly flash.
If the display returns, the problem may be related to the graphics driver rather than the monitor itself.
2. Check the Monitor and Display Cable
Before changing Windows settings, check the physical connection.
Turn off the computer and check:
- The monitor's power cable.
- The HDMI, DisplayPort, USB-C, or other video cable.
- The cable connection at the computer.
- The cable connection at the monitor.
- The selected input source on the monitor.
If possible, try another compatible display cable.
You can also connect the computer to another monitor or TV.
What This Test Tells You
- If another monitor works, the original monitor or its cable may be the problem.
- If both displays have the same problem, Windows, the graphics card, or another hardware component is more likely responsible.
- If the monitor displays "No Signal," check the graphics card connection and selected input before changing Windows settings.
3. Check Windows Display Settings
If Windows starts normally, check the display configuration.
Windows 11
Go to: Settings > System > Display
Windows 10
Go to: Settings > System > Display
Check the following:
- Display resolution
- Display orientation
- Multiple display settings
- Refresh rate
- Scale settings
Select the Recommended resolution when available.
An incorrect resolution or refresh rate can cause an unstable or distorted display.
4. Check the Graphics Driver
Graphics drivers allow Windows to communicate with your graphics card or integrated GPU.
A missing, corrupted, incompatible, or outdated driver can cause many display problems.
To check the installed driver:
- Right-click Start.
- Select Device Manager.
- Expand Display adapters.
- Look for your graphics device.
You may see a graphics adapter from NVIDIA, AMD, Intel, or another manufacturer.
If there is a yellow warning symbol, Windows has detected a problem with the device or driver.
For a specific graphics-device error, see our guide on how to fix Windows 11 Error Code 43 .
5. Update the Graphics Driver
If the graphics driver is old or incompatible, install a newer driver.
You can first check Windows Update:
Settings > Windows Update > Advanced options > Optional updates
Look for available driver updates.
For the latest driver, use the graphics manufacturer's official website.
Common manufacturers include:
- NVIDIA
- AMD
- Intel
Download the driver that matches your graphics hardware and Windows version.
Avoid downloading graphics drivers from unknown third-party websites.
After Installing the Driver
Restart the computer and test the display again.
If the problem started immediately after a driver update, the newest driver may not be compatible with your particular system.
6. Roll Back a Problematic Driver
If the display worked correctly before a recent driver update, try rolling the driver back.
- Open Device Manager.
- Expand Display adapters.
- Right-click your graphics device.
- Select Properties.
- Open the Driver tab.
- Select Roll Back Driver, if available.
Restart Windows after the rollback.
If the Roll Back Driver option is unavailable, you may need to install a previous stable driver from the graphics manufacturer's website.
7. Reinstall the Graphics Driver
A corrupted driver installation can continue causing display problems even when the driver appears to be up to date.
You can reinstall the driver through Device Manager.
- Open Device Manager.
- Expand Display adapters.
- Right-click the graphics adapter.
- Select Uninstall device.
- Follow the instructions.
- Restart the computer.
- Install the correct graphics driver again.
Windows may temporarily use Microsoft Basic Display Adapter until the proper driver is installed.
8. Try Safe Mode
Safe Mode starts Windows with a limited set of drivers and services.
This makes it useful for determining whether a third-party graphics driver is causing the problem.
If the display works normally in Safe Mode but fails during normal Windows startup, a driver or startup program may be responsible.
See our detailed guide on how to boot Windows 10 and 11 into Safe Mode .
9. Check for Windows Update Problems
Sometimes a display problem starts after a Windows update.
If the problem appeared immediately after updating Windows, check:
Settings > Windows Update > Update history
Look for recently installed updates.
You can also check Microsoft's current update information before removing an update.
If you recently installed a Windows 11 update and started experiencing several problems, our guide to Windows 11 KB5121003 problems and fixes may also be useful.
Do not remove a Windows update simply because it was installed recently. First determine whether the timing and symptoms indicate that the update is actually responsible.
10. Check for Overheating
A graphics card can become unstable when it gets too hot.
Overheating is more likely when:
- The computer is dusty.
- The graphics card fan is not working.
- Airflow inside the case is poor.
- The computer is placed in a hot or enclosed area.
- The problem appears during gaming or other graphics-intensive work.
Check whether the graphics card fans are spinning when the GPU is under load.
Also check the case fans and ventilation openings.
Do Not Use an External Fan as a Permanent Solution
The old advice of pointing a household fan at an open computer case is useful only as a temporary diagnostic test.
A better solution is to clean the computer, improve airflow, and repair or replace a faulty cooling component.
11. Clean Dust From the Computer
Dust can restrict airflow and increase temperatures.
Turn off the computer, disconnect the power, and allow it to cool before cleaning.
Pay particular attention to:
- Graphics-card heatsinks
- CPU heatsink
- Case filters
- Case fans
- Air vents
- Power-supply intake
Use appropriate compressed air and avoid damaging the fans or components.
If your computer is also generally running hot or making excessive fan noise, see our guide on how to stop laptop overheating and fan noise .
12. Check the Graphics Card Installation
If you recently installed or moved a desktop graphics card, it may not be seated correctly.
Turn the computer off and disconnect the power.
Then check:
- The graphics card is fully inserted into the PCIe slot.
- The slot's retention mechanism is properly engaged.
- The graphics card is secured to the case.
- Any required PCIe power cables are connected.
- The monitor cable is connected to the graphics card rather than an unused motherboard video output.
If the graphics card was recently installed, reseating it can sometimes resolve a "No Signal" problem.
13. Inspect the Graphics Card for Physical Damage
With the computer powered off and disconnected, visually inspect the graphics card.
Look for:
- Excessive dust
- Damaged fans
- Loose heatsinks
- Burn marks
- Broken components
- Damaged connectors
- Signs of leaking or swollen components
Do not continue using hardware that shows obvious electrical or physical damage.
14. Check the Power Supply
A graphics card requires a stable power supply.
An inadequate or failing power supply can cause:
- Random display loss
- System crashes
- Black screens
- Graphics driver crashes
- Restarting under heavy load
- Problems that occur mainly during gaming
Check that the power supply has enough capacity for your graphics card and that all required power connectors are properly connected.
Do not assume that a higher-wattage power supply is automatically better. Use a reputable unit that meets the graphics card manufacturer's requirements.
If the computer has broader power problems, see our guide on what to do when a PC won't turn on .
15. Test With Integrated Graphics
If your processor and motherboard support integrated graphics, you may be able to temporarily remove the dedicated graphics card and test the computer using the motherboard's video output.
This can help determine whether the dedicated graphics card is causing the problem.
However, motherboard video outputs work only when the CPU provides integrated graphics.
If you are unsure whether your system supports this feature, check the motherboard or CPU specifications.
16. Test Another Monitor
A second monitor is one of the easiest ways to separate a monitor problem from a computer problem.
Connect another known-working monitor or TV.
If the Second Display Works
The original monitor, cable, or monitor input may be faulty.
If the Second Display Also Fails
The graphics driver, graphics card, power supply, motherboard, or Windows installation may be responsible.
17. Check for Screen Artifacts
Colored blocks, horizontal lines, random patterns, or distorted images are often called graphics artifacts.
They can be caused by:
- Graphics-driver problems
- GPU overheating
- Unstable GPU settings
- Faulty video memory
- Graphics-card hardware failure
- Cable or connection problems
If artifacts appear even before Windows loads, such as on the manufacturer's logo or BIOS screen, Windows is less likely to be the cause.
If artifacts appear only after Windows loads, investigate the driver and software first.
For persistent horizontal lines, see our guide on fixing horizontal lines on a laptop screen .
18. Reset Graphics Settings After GPU Overclocking
If you have overclocked the graphics card, CPU, or memory, return the hardware to its default settings.
An unstable overclock can cause:
- Screen freezes
- Driver crashes
- Artifacts
- Black screens
- System restarts
Test the computer at its standard settings before assuming the graphics card has failed.
19. Check Other Hardware Problems
Display problems are not always caused by the graphics card.
Other hardware can also cause system instability.
Possible causes include:
- Faulty RAM
- Failing storage
- Motherboard problems
- Power-supply problems
- Loose connections
- CPU overheating
If Windows is showing broader performance problems, check our guide on how to fix a slow Windows 11 PC .
20. When the Graphics Card May Need Replacement
You may have a hardware failure if:
- The computer shows artifacts in BIOS.
- The graphics card is not detected in multiple systems.
- The display remains faulty with a known-good cable and monitor.
- The card overheats despite proper cooling.
- The card has visible physical damage.
- Driver reinstallations do not solve the problem.
- The computer crashes whenever the GPU is under load.
Before buying a replacement graphics card, test the monitor, cable, power supply, and driver first.
Quick Troubleshooting Checklist
Work through these checks in order:
- Restart Windows.
- Press Windows + Ctrl + Shift + B.
- Check the monitor power and input.
- Replace or reseat the display cable.
- Test another monitor.
- Check Windows Display settings.
- Check Device Manager.
- Update or reinstall the graphics driver.
- Roll back the driver if the problem started after an update.
- Try Safe Mode.
- Check Windows Update history.
- Check GPU temperature and cooling.
- Clean dust from the computer.
- Reseat the graphics card.
- Check GPU power connectors.
- Check the power supply.
- Test integrated graphics if available.
- Return overclocked hardware to default settings.
- Inspect the graphics card for physical damage.
- Consider professional hardware testing if the problem remains.
Frequently Asked Questions
Why is my Windows 11 screen flickering?
A faulty or incompatible graphics driver is a common cause, but the monitor, cable, refresh rate, GPU, or a Windows/software problem can also cause flickering. Start by checking the cable and display settings, then update or roll back the graphics driver.
Why does my monitor say "No Signal"?
Check the monitor input, display cable, graphics-card connection, and graphics-card power connectors. If possible, test another cable and monitor.
Can a graphics driver cause a black screen?
Yes. A corrupted, incompatible, or unstable graphics driver can cause a black screen. Try Windows + Ctrl + Shift + B and then test Windows Safe Mode.
How do I know if my graphics card is failing?
Persistent artifacts, crashes under graphics load, overheating, driver failures, or no display across multiple known-good monitors and cables can indicate a failing graphics card.
Can overheating cause display problems?
Yes. An overheating GPU can cause artifacts, driver crashes, freezes, black screens, and system restarts.
Should I reinstall Windows to fix display problems?
Usually not as a first step. Test the cable, monitor, graphics driver, Windows updates, temperatures, and hardware connections before considering a Windows reinstall.
Final Thoughts
Most display problems do not immediately mean that the graphics card has failed.
Start with the simple checks: cables, monitor input, Windows display settings, and graphics drivers. Then move on to overheating, power, and physical hardware checks.
If the problem started after a Windows or driver update, investigate the software first. If the problem appears before Windows starts or continues with another monitor and cable, hardware becomes more likely.
Careful testing can help you identify the actual cause without unnecessarily replacing expensive computer components.