Comprehensive Guide How to Fix Screen Flickering in Ubuntu

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Screen flickering is an issue that can affect using a
computer. It occurs when the display on the computer screen rapidly changes
between an image and a blank or black screen. The flickering can be caused by a
hardware or software issue and can be very distracting and uncomfortable. It can
also cause eye strain and headaches. Depending on the cause, it can be fixed by
adjusting the display settings or updating the graphics card drivers.

Identify the Causes of Screen Flickering

Hardware Causes of Screen Flickering

1. Loose connections between the computer and its monitor can cause the screen
to flicker. Ensure that all connections are secure, such as the VGA cable, the
power cable, and the data cable.

2. Faulty/overheating components:
The components of a computer, such as the CPU, GPU, RAM, and motherboard, can
become faulty or overheat, causing the screen to flicker. Check the temperature
of the components and replace any defective parts.

3. Incompatible
driver: A driver is a piece of software that allows the computer to communicate
with its hardware. If the driver is outdated or incompatible, the screen may
flicker. Update the driver or reinstall it.

Software Causes of Screen Flickering

1. Malware: Malware can cause the screen to flicker by interfering with the
computer’s hardware and software. Scan the computer for malware and remove any
malicious programs.

2. Corrupted system files: System files can
become corrupted, causing the screen to flicker. Use a system restore point to
restore the computer earlier when the system files were not corrupted.

Overloaded programs: If a program is overloaded with data, it can cause the
screen to flicker. Close unnecessary programs or restart the computer.

Update Video Drivers to fix screen flickering

Updating video drivers is an essential part of maintaining your computer’s
performance. Regularly updating your video drivers can help fix screen
flickering, a standard display issue. Flickering can occur when your video card
is not up to date with the latest driver version or when a specific feature of
the video card is not being used correctly.

When you update
your video drivers, you will get access to the latest technology and features
available for your video card, which can help improve your overall gaming and
video viewing experience. Additionally, updating your video drivers can fix any
bugs or glitches that may be causing the flickering in the first place.

is important to note that updating video drivers can be tricky and should be
done with caution. Ensure you are downloading the correct video driver for your
video card and computer, as downloading the wrong driver can cause more problems
than it solves. Additionally, back up your system before installing any new
drivers, as this can help you quickly restore your system if anything goes wrong
during the process.

Change the Refresh Rate to fix screen flickering.

Changing the refresh rate in the display settings can help fix screen
flickering. To do this, follow the steps below:

1. Open the
Start menu and type in “Display Settings,” and select it from the list of

2. Once the display settings window has opened, select the
“Advanced Settings” option.

3. Select the “Monitor” tab and look for
the “Screen Refresh Rate” option.

4. Change the refresh rate from the
list of available options. The optimal refresh rate for your monitor may vary,
so you may need to experiment with different refresh rates to find the one that
works best for you.

5. Once you have selected the appropriate refresh
rate, click “OK” to confirm the change and close the window.

6. You
may need to restart your computer for the changes.

Uninstall Recently Installed Software to fix screen flickering

Screen flickering can be caused by many factors, but recently installed software
can be a common issue. If you have recently installed software, it can cause
your screen to flicker. To remove recently installed software, go to your Start
menu and select “Control Panel.” Under “Programs”, choose “Uninstall a Program.”
You can like the recently installed software and click “Uninstall.” After
removing the software, you should restart your computer to see if the screen
flickering has been resolved. If the issue persists, you may need to look into
other potential causes.

Change the Graphics Card to fix screen flickering.

1. Shut down the computer and unplug the power cable.

2. Open the
computer case using a screwdriver.

3. Remove the existing graphics
card by unscrewing the screws that hold it in place.

4. Insert the
new graphics card in the slot where the old one was.

5. Secure the
new graphics card in place with the screws.

6. Connect the power
cables from the graphics card to the power supply unit.

7. Close the
computer case and plug the power cable back in.

8. Turn on the
computer and install the necessary drivers for the new graphics card.

Check to make sure the issue is resolved.

Disable Hardware Acceleration To Fix Screen Flickering.

To disable hardware acceleration in your browser settings, follow these steps:

1. Open your browser and click on the menu icon (three dots) in the upper
right corner of the window.

2. Select Settings from the menu.

Click Advanced at the bottom of the page.

4. Scroll down to the
System section and click the checkbox next to Use hardware acceleration when

5. Uncheck the box and click the Relaunch button at the
bottom of the page.

6. Your browser will now relaunch with hardware
acceleration disabled.

Once hardware acceleration is disabled,
screen flickering should be reduced or eliminated. If the issue persists, you
may need to update your graphics card driver or disable other features, such as
smooth scrolling.

Disable Screen Saver to fix screen flickering

1. Go to the Start menu and select Settings.

2. Select
Personalization from the list of options.

3. Select Lock Screen from
the left-hand menu.

4. Select the Screen Saver Settings option at the
bottom of the Lock Screen menu.

5. Select the None option from the
drop-down menu.

6. Click OK to save your changes and exit the Screen
Saver Settings window.

7. Restart your computer.

This should disable the screen saver and help fix screen flickering.
Read Also

Disable Visual Effects to fix screen flickering

To disable visual effects in Windows 10, follow these steps:

1. Open the Start menu, and go to Settings.

2. Go to System
> Advanced System Settings.

3. Under the “Performance”
section, click on the “Settings” button.

4. Under the “Visual
Effects” tab, select the “Adjust for best performance” radio button.

Click “OK” to save the changes.

This will disable all of the
visual effects on your system, which should help reduce screen

Change Power Settings To Reduce Power Consumption And Help Fix Screen

1. On Windows, go to the Start menu and select Control Panel.

Click on the System and Security link in the Control Panel.

Next, click on Power Options.

4. Here, you can choose from a list
of power plans that best suits your needs.

5. Within each plan,
you can customize settings such as turning off the display after a certain
period or changing the processor performance.

6. If you
experience screen flickering, try reducing the brightness settings or
turning off the screen when not in use.

7. Once you have chosen
the settings, click the Save Changes button.

Troubleshoot With Terminal Commands To Help Troubleshoot And Fix Screen

1. First, check to see if your display settings are causing the screen
to flicker. You can do this by typing “xrandr” into the terminal. This will
display all the available display settings. If the settings are incorrect,
you can type “xrandr -s <resolution>,” replacing <resolution>
with the desired solution.

2. Check to see if the refresh rate is
set correctly. You can do this by typing “xrandr -q,” which will display the
current refresh rate. If it is not set correctly, you can order “xrandr -r
<refresh_rate>” replacing <refresh_rate> with the desired
refresh rate.

3. Check to see if your graphics card driver is
up-to-date. You can do this by typing “lsmod” into the terminal. This will
list all the currently loaded modules. Check to see if your graphics card
driver is listed; if not, you should update it.

4. Check to see
if the screen is being overdriven. You can do this by typing “cat
/sys/class/DRM/card0/device/power_dpm_force_performance_level”. If the
output is not “low,” then the screen is being overdriven, and you should
type “Sudo echo low >
/sys/class/DRM/card0/device/power_dpm_force_performance_level” to fix the

5. Check to see if the display is overheating. You can do
this by typing “xset q” into the terminal. This will display the temperature
of the show. You should lower the brightness or turn on a fan to cool the
display if it is too high.

6. Try resetting the display. You can
do this by typing “xrandr –auto” into the terminal. This will reset the
show to its default settings.

7. If all else fails, you may need
to reinstall your video card driver. You can do this by typing “Sudo apt-get
install <video_card_driver>” and replacing <video_card_driver>
with the name of the appropriate driver.


The best way to fix screen flickering in Ubuntu is to update your graphics
drivers. This can be done by either installing the latest version of the
proprietary drivers or downloading and installing the open-source drivers
for your particular graphics card. Additionally, it is crucial to ensure
that your system is running the most up-to-date version of the Ubuntu
operating system. Finally, if the problem persists, it may be best to
consult a technician who can help diagnose and repair the issue.

FAQs on how to fix screen flickering in Ubuntu

What is screen flickering in Ubuntu?

Screen flickering in Ubuntu is an issue where the display on the monitor flickers or shakes. Various problems, such as a faulty graphics card or driver, incorrect display settings, or out-of-date software, can cause this.

How can I troubleshoot screen flickering in Ubuntu?

The best way to troubleshoot screen flickering in Ubuntu is to check the hardware and drivers to ensure they are up-to-date and functioning correctly. You can check the hardware specifications in the “Additional Drivers” section of the “Software & Updates” application. If the hardware is up to date and functioning correctly, the issue may be caused by incorrect display settings, outdated software, or a damaged display cable.

How can I fix screen flickering in Ubuntu?

If the issue is caused by incorrect display settings, you can try adjusting the resolution, refresh rate, and other locations in the “Displays” section of the “System Settings” application. If the issue is caused by outdated software, you can try updating the software and drivers from the “Software & Updates” application. If the problem is caused by a damaged display cable, you will need to replace the line.

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