Chromebook Backlight

What Causes Chromebook Backlight Not Working


On the nod that your Chromebook backlight quits working, you can’t see what’s on your screen and everything seems blank.

It appears to be that few Chromebook users experience issues with their backlight, and this is a significant component of any device.

If you can’t see what’s on your screen enough, it becomes so difficult for you to do anything on your Chromebook.

Basically, it makes any system useless.

To get past this, we will give you effective techniques to find your way out of this problem, as well as the causes of the Chromebook backlight not working.

The Chromebook Analogy

Chromebooks are somewhat unique to your mobile phone or laptop.

Mobile phones permit you to manually change the display brightness and use the encompassing sensor simultaneously.

The phone uses your preferred brightness as a standard, then changes up or down appropriately as the climate changes. 

The Chrome systems don’t work like that, because how they judge brightness isn’t similar.

Chromebooks use a couple of discrete settings. At boot, the framework consequently sets the showcase splendor to 40%.

Then from that point, it changes as the framework begins.

The device checks a couple of more factors like general lighting and whether the framework is on AC power or battery.

It then sets the splendor to explicit boundaries because of what it finds.

This is completely constrained by the “powered”- Chrome OS Power Manager.

How the Chromebook Backlight Works

In case the lighting in the space is more than 400 lux-a unit where light is estimated in a given space and the framework is on AC power, the screen brilliance is naturally set to 100 percent.

On battery power, it goes to 80%. Assuming that the lux is lower than 400, it’ll be set to 80% on AC power and 63% on battery.

All things considered, brightness will change immediately as you change the power state: plug in the Chromebook, and the brightness goes up.

Turn off it, and the splendor goes down.

Console backlight works similarly; however, there is certainly not a rigid rule for how it gets set at boot.

This is gadget explicit from everything that we can say, but at the same time, it’s less essential to comprehend since it’s not as emotional a distinction contrasted with the showcase brilliance.

Why Did My Automated Chromebook Backlight Stop Working?

There are two primary issues with the Chrome OS scratch pad that can cause the backlight on your Chromebook to quit working: the screen or the backlight.

Assuming you disapprove of your Chromebooks screen you really must peruse this post and see how the light functions and what issues you could run into on the off chance that it doesn’t work as expected.

This guide will assist you with seeing how your Chromebook functions and what could cause issues with it.

Case 1 – Brightness Settings

If you can’t see anything on your screen, however, the backlight is on and your Chromebook is working, you ought to focus on this post.

The Chrome OS handles brightness uniquely in contrast to different gadgets.

When you alter the brightness settings from being automatic, it assumes that is the place where you need it to be and handicaps programmed brilliance.

This setting is so forceful; that it will incapacitate programmed brilliance regardless of whether you physically change the console backlight.

Thus, assuming you physically change the brilliance of your screen or console, programmed splendor gets crippled.

Case 2 – Programmed Splendor Setting

In Chrome OS, you regulate the control center backdrop illumination by holding the ALT key while using the screen brilliance buttons.

In past versions of Chromebook OS, the programmed splendor setting would endure rebooting, so the last-utilized brilliance level got re-applied at boot.

That element was eliminated in the most recent versions and the framework uses a more advanced system.

Now the only way to re-empower programmed splendor is to reboot the framework. To keep it empowered, you then need to try not to make manual changes.

Case 3 – Faulty backlight

The backlight could have also burned out; it could have an issue with the inverter or be covered by something blocking the light.

Once your lights are gone, there’s nothing you can do except change them. That’s the only way to get your screen back on.

Please note that you can only conclude this after exercising other inspections and checks.

Solutions To Chromebook Backlight Not Working

Check for Low Power

To prevent this issue from recurring, the principal thing you need to do is check that your Chromebook doesn’t have low power, which would keep the lights from turning on naturally.

You can do this by holding CTRL + ALT + SHIFT + E, and that command will place it in power-saving mode and save your battery.

If not, you should supplant or re-energize your battery assuming it died or has really low power.

Inspect Brightness Settings

Check your system brightness in case of an altercation. A minor change in your screen settings can affect the backlight function.

You need to inspect the level or percentage of light intensity, and also if the backlight was removed from the automatic function.

Sometimes all you need is to simply change the settings back to default and it will all be solved.

You can adjust brightness settings from the light adjustments keys on your keyboard, or go to your taskbar.

Click on the battery icon to get into the notification area, where you will find the brightness adjustment slider.

Simply drag the slider with your mouse to the right or left for brightness increase or decrease respectively.

Troubleshoot Brightness Adjustment Settings

If you can’t adjust the brightness on your Chromebook device, you might have to log out and log in as a guest user.

Then try the adjustment setting again to see if it works.

If this doesn’t solve the case, you will have to contact your device manufacturer for additional troubleshooting options.

Contact Your Manufacturer

Getting your Chromebook backlight on shouldn’t be challenging, as long as your system is operational.

If your backlight doesn’t come on after attempting the right methods, then we can say you have an issue with your system lights.

This has become a technical problem, so you will have to take your laptop to the manufacturer or seek the services of a technician to help you out.

Do not attempt to fix this on your own if you don’t have the technical know-how, as you can damage your entire Chromebook screen.


In the case of nothing else, we trust this will assist you with making your Chromebook more valuable.

As long as you adhere to the instructions and recommendations we gave, you won’t have to struggle with Chromebook backlight issues anymore.

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