Laptops and Tablets • Recommendations and advice


The screen on the laptop does not light up what to do

The screen on the laptop does not light up what to do?

You need to install a working BIOS version

If your second screen works fine, but your computer screen refuses to work, also disabling the settings and returning to the factory settings BIOS could not help, in this case it is advisable to reflash the BIOS.

It is possible to update the BIOS in different ways:

  • Using the “MS-DOS” option;
  • Using the OS;
  • Without entering DOS and starting the computer.

The easiest way to update the BIOS is to use third-party software. But, it is more correct to manually go to the main resource of the creators of your motherboard and simply download updates from this site.

The main thing is to create a backup copy of the OS or at least a restore point before installing the BIOS. When you start installing BIOS without an access point, your system may crash and you will lose all settings.

Problems waking up from hibernation

If the screen stays black when you wake up from sleep, the first step is to check your graphics card drivers. The software must be the latest version and fit the system. You can download the latest drivers on the laptop manufacturer’s website.

In some cases, the problem is caused by incorrect input devices support for Windows hibernation. Waking up from sleep is carried out using a touchpad (mouse) or keyboard. If an external device is connected, then it can block the wake-up of the laptop. To fix this flaw:

  • Open Device Manager. Expand the “Mice” or “Keyboards” section, depending on which device is blocking wake-up.
  • Right click on hardware and open properties.
  • Go to the “Power Management” tab and uncheck “Allow the computer to wake up from sleep mode”.

Save the configuration by clicking “OK”. Do not prohibit waking the laptop at the same time as the mouse and keyboard, otherwise you will not be able to wake up the computer from sleep. Set the ban on both devices in turn, checking if there is a positive effect.

Troubleshooting tips

Before starting to manipulate the details of the computer, you need to carry out a standard reset of the hardware settings of the device. In most cases, this will fix the black screen problem.

The hardware reset is performed as follows:

  • The laptop disconnects from the mains.
  • The battery is removed from the device.
  • The power button is held down for 25 seconds.
  • The device battery is inserted back.
  • The charger is connected.
  • The laptop can be turned on.

After resetting the hardware settings, if the laptop boots, it will ask you to select the type of startup of the operating system. you need to select “Normal Windows startup”. But problems are also associated with the BIOS, which can be reset just as easily. If updating its drivers and resetting with the option does not help, then you will need to disassemble the laptop.

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Reason 4. black screen and BIOS problems

When the laptop does not turn on and it is clearly visible that the black screen is on, and the video card is working properly, there may be problems with loading BIOS commands. This is often due to a dead battery or BIOS glitches. First, reset the BIOS by shorting the Clear BIOS pins or remove the battery (often CR2032) and close the contacts to which it was connected. Sometimes a rechargeable battery is installed in laptops, but they also lose capacity over time. After clearing the BIOS, you may need to configure it again. Most often, the default settings work.

It so happens that the EEPROM chip in which the BIOS is flashed fails. Here you will need a programmer to confirm this by reading byte and a new ROM chip for repair. Before repairing, you need to find the firmware file on the official website of the laptop manufacturer. How to unsolder the BIOS chip, see the video.

Solving BIOS-related tasks

If we reset the settings in the BIOS, then this action can help you if, before this reset was carried out, the user in the BIOS performed certain actions.

  • Immediately after the laptop has booted, you need to press the DEL button;
  • We will reset the settings with the F9 key;
  • Save the configuration with the F10 button;
  • We just have to restart our PC.

When you do not have time to press one of the indicated buttons and carry out these actions as quickly as possible, the BIOS settings may not change. And the computer screen will remain black because of this. In other cases, remove the CMOS (a small battery on the motherboard), in which the BIOS settings are saved, including when the PC is turned off.

Reinstalling the RAM module

The image may also not be displayed due to improper installation of the memory module or problems with contacts (very often this method helps to get rid of the problem “the laptop does not turn on and a black screen appears” after water or moisture gets on it, but before that, make sure that your laptop completely dry and in no case do not perform any actions if it is not dry).

To do this, you need to remove the RAM module, blow out the connectors.

Now let’s figure out how to extract RAM.

    When disassembling a laptop, the very first step is to disconnect it from the power supply, and also remove the battery, and then just proceed to the disassembly itself.

A little advice before you start taking apart your laptop. The bolts have different heights, so group them and put them in different boxes.

Many laptops have a dedicated compartment for RAM, which must be unscrewed. If you are unlucky and your laptop does not have such a compartment, you need to completely unscrew the back cover of the laptop.

The figure shows what the compartment for RAM looks like.

The RAM is held by 2 latches on the right and left sides, therefore, from the beginning it is necessary to bend these latches, and only then remove the RAM.

The figure under the number 1 shows where it is necessary to unscrew the clips.

Gently remove the RAM, blow out the connectors and you can swap them.

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RAM is inserted at an angle of 45 degrees and must be tightly fixed in the grooves.

After that, it is necessary to press on top of the RAM so that the latches work and they click into place. After that you can start assembling the laptop.

Reassemble the laptop, insert the battery and plug it in. Turn on your laptop.

If these steps do not give any result, you need to reinstall the BIOS.

To do this, go to the manufacturer’s website, find and download the latest BIOS version. The archive will contain a readme file with detailed instructions for installation.

BIOS reinstallation must be performed in the very last case, but in general it is better to contact the service center, because the problem may not be in the BIOS at all, but, for example, in the north or south bridges, video card, etc.

P.S If you notice that your laptop is systematically shutting down and a black screen appears, I recommend that you familiarize yourself with the “5 reasons for a sudden laptop shutdown”.

That’s all, I hope our article helped you cope with the problem “Why the laptop does not turn on and a black screen appears”

Why you can’t change the screen resolution

As a standard, you can change the resolution in Windows 10 in the settings by right-clicking on an empty spot on the desktop, selecting “Display settings” (or in Settings. System. Display). However, sometimes the resolution selection is not active or there is only one selection option in the list of permissions (it is also possible when the list is present, but it does not have the correct permission).

screen, laptop, does, light

There are several main reasons why the screen resolution may not change in Windows 10, which will be discussed in more detail below.

  • Lack of the required video card driver. At the same time, if you clicked “Update driver” in the device manager and received a message that the most suitable drivers for this device are already installed, this does not mean that you have and installed the correct driver.
  • Video card driver malfunctions.
  • Using poor-quality or damaged cables, adapters, converters to connect the monitor to the computer.

Other options are possible, but these are more common than others. Let’s move on to ways to rectify the situation.

Windows 10 screen resolution does not change

If you need to change the screen resolution in Windows 10, it is almost always very simple to do this, and the necessary steps were described in the article How to change the screen resolution of Windows 10. However, in some cases, a problem is possible. the resolution does not change, the item for changing it in the parameters is not active. as well as additional methods of change do not work.

In this manual, in detail about what to do if the screen resolution does not change Windows 10, how to fix the problem and return the ability to adjust the resolution on the computer and laptop, if possible.

How to fix the problem

  • Go to the Windows 10 Device Manager (to do this, you can right-click on the “Start” button and select the desired item in the context menu).
  • In Device Manager, open the “Display Adapters” section and see what is listed there. If it is Microsoft Basic Display or the Display Adapters section is missing, but the Other Devices section contains a Video Controller (VGA Compatible), the video driver is not installed. If the correct graphics card is listed (NVIDIA, AMD, Intel), you should still follow the next steps.
  • Always remember (not only in this situation) that right-clicking on the device in the device manager and selecting the “Update driver” item and the subsequent message that the drivers for this device are already installed say only that on Microsoft servers and in your Windows no other drivers, not that you have the correct driver installed.
  • Install the native driver. For a discrete video card on a PC. from the NVIDIA or AMD website. For a PC with an integrated video card. from the website of the motherboard manufacturer for your MP model. For a laptop. from the laptop manufacturer’s website for your model. In this case, for the last two cases, install the driver even if it is not the newest on the official website and there is no driver for Windows 10 (install for Windows 7 or 8, if it is not installed, we try to run the installer in compatibility mode).
  • If the installation fails, and some driver is already installed (i.e. not a basic video adapter and not a VGA-compatible video controller), try completely uninstalling the existing video card driver first, see How to completely uninstall a video card driver.
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As a result, if everything went smoothly, you should get the correct video card driver installed, as well as the ability to change the resolution.

Most often, the matter is in the video drivers, but other options are also possible, and, accordingly, the ways to fix it:

  • If the monitor is connected through some kind of adapter, or you recently purchased a new connection cable, this could be the problem. Other connection options are worth trying. If there is some kind of additional monitor with a different connection interface, you can conduct an experiment on it: if, when working with it, the choice of resolution is possible, then the matter is clearly in the cables or adapters (less often in the connector on the monitor).
  • Check if the choice of resolution appears after restarting Windows 10 (it is important to perform the restart, not shutdown and power on). If yes, install all chipset drivers from the official site. If the problem persists, try disabling Windows 10 Fast Startup.
  • If the problem appears spontaneously (for example, after a game), there is a way to restart the video card drivers using the Win Ctrl Shift B keyboard shortcut (however, you can end up with a black screen until a forced restart).
  • If the problem persists, check the NVIDIA Control Panel, AMD Catalyst Control Panel, or Intel HD Control Panel (Intel Graphics) to see if the screen resolution can be changed there.

I hope the guide was helpful and one of the ways will help you get back the ability to change the screen resolution to Windows 10.