Medi 13, 2017

Fix Can’t adjust screen brightness in Windows 10

Fix Can’t adjust screen brightness in Windows 10: If you have recently upgraded to Windows 10 then you may be facing this annoying issue where you can’t adjust the screen brightness, in short, screen brightness settings stopped working. If you try to adjust the brightness using Windows Settings apps, you won’t be able to change anything, as dragging the brightness level up or down will do nothing. Now if you try to adjust brightness using the brightness keys on the keyword then it would display the brightness level going up and down, but nothing would actually happen.

Fix Can't Adjust Screen Brightness in Windows 10 [SOLVED]

Why I am unable to adjust screen brightness on Windows 10?

If you have enabled automatic battery management then if the battery starts to become low the brightness will be automatically changed to dim settings. And you won’t be able to adjust the brightness again until you will change the battery management settings or charge your laptop. But the issue can be a number of different things for example corrupted drivers, incorrect battery configuration, ATI bug, Ac ati

This is quite a common issue which a lot of Windows 10 users are facing right now. This issue can also be caused because of the corrupt or incompatible display driver and thankfully this issue can be easily resolved. So without wasting any more time let’s see how to actually fix can’t adjust screen brightness in Windows 10 with the help of below-listed steps.

Fix Can’t Adjust Screen Brightness in Windows 10

Gwnewch yn siŵr eich bod chi'n creu pwynt adfer rhag ofn i rywbeth fynd o'i le.

Dull 1: Diweddaru Gyrwyr Addasydd Arddangos

1. Pwyswch Windows Key + R yna teipiwch devmgmt.msc a tharo Enter i agor Rheolwr Dyfais.

rheolwr dyfais devmgmt.msc

2. Ehangu Arddangosyddion arddangos and then right-click on the integrated graphics card and select Diweddaru Gyrrwr.

Need to update the display driver

Nodyn: The integrated graphics card would be something like Graffeg HD Intel 4000.

3. Yna cliciwch Chwiliwch yn awtomatig am feddalwedd gyrrwr diweddar and let it install the driver automatically.

Nodyn: Make sure you have a good internet connection in order for Windows to automatically download the latest drivers.

chwilio'n awtomatig am feddalwedd gyrrwr wedi'i ddiweddaru

4. Reboot your PC and see if the issue is resolved or not.

5. If not then again select Diweddaru Gyrrwr and this time click on Porwch fy nghyfrifiadur ar gyfer meddalwedd gyrwyr.

6. Nesaf, cliciwch ar Gadewch i mi ddewis o restr o yrwyr sydd ar gael ar fy nghyfrifiadur opsiwn ar y gwaelod.

Gadewch i mi ddewis o restr o yrwyr sydd ar gael ar fy nghyfrifiadur

7. Nawr checkmark "Dangos caledwedd cydnaws” then from the list select Addasydd Arddangos Sylfaenol Microsoft a chliciwch Nesaf.

select Microsoft Basic Display Adapter and then click Next

8. Let it install the basic Microsoft display driver and reboot your PC to save changes.

Method 2: Adjust the brightness from Graphics Settings

1. Right-click in an empty area on the desktop then select Gosodiadau Graffeg Intel.

Right-click in an empty area on the desktop then select Intel Graphics Settings

2. Nawr cliciwch ar arddangos from the Intel HD Graphics Control Panel.

Now click on Display from the Intel HD Graphics Control Panel

3. O'r ddewislen ar y chwith, dewiswch Color Settings.

4. Adjust the Brightness slider according to your liking and once done, click Gwneud cais.

Adjust the Brightness slider under Color Settings then click Apply

Dull 3: Adjust screen brightness using Power Options

1. De-gliciwch ar y Eicon pŵer ar y bar tasgau a dewiswch Dewisiadau Pŵer.

De-gliciwch ar yr eicon Power a dewiswch Power Options

2. Nawr cliciwch Newid gosodiadau'r cynllun next to currently active power plan.

Click on Change plan settings next to your selected power plan

3. Cliciwch Newid gosodiadau pŵer uwch ar y gwaelod.

Click Change advanced power settings at the bottom | Fix Can't Adjust Screen Brightness in Windows 10

4. From the Advanced settings window, find and expand Arddangos.

5. Now locate and click each of the following to expand their respective settings:

Arddangos disgleirdeb
Dimmed display brightness
Galluogi disgleirdeb addasol

From the Advanced settings window find and expand Display then change Display brightness, Dimmed display brightness and Enable adaptive brightness settings

5. Change each of these to the settings you wish, but make sure “Galluogi disgleirdeb addasol”Yw wedi diffodd. 

6. Once done, click Apply followed by OK.

7. Ailgychwyn eich PC i arbed newidiadau.

Dull 4: Galluogi Monitor PnP Generig

1. Pwyswch Windows Key + R yna teipiwch devmgmt.msc a tharo Enter i agor Rheolwr Dyfais.

rheolwr dyfais devmgmt.msc

2. Ehangu Monitro ac yna cliciwch ar y dde Monitor PnP Generig a dewis Galluogi.

Expand Monitors and then right-click on Generic PnP Monitor & select Enable device

3. Ailgychwyn eich PC i arbed newidiadau a gweld a allwch fix can’t adjust screen brightness in Windows 10 issue.

Dull 5: Diweddaru Gyrrwr Monitor PnP Generig

1. Pwyswch Windows Key + R yna teipiwch devmgmt.msc a daro Enter.

rheolwr dyfais devmgmt.msc

2. Ehangu Monitro ac yna cliciwch ar y dde Monitor PnP Generig a dewis Diweddaru Gyrrwr.

Expand Monitors then right-click on Generic PnP Monitor and select Update Driver

3. Dewiswch Porwch fy nghyfrifiadur ar gyfer meddalwedd gyrwyr.

pori fy nghyfrifiadur am feddalwedd gyrrwr

4. Nesaf, cliciwch ar Gadewch i mi ddewis o restr o yrwyr sydd ar gael ar fy nghyfrifiadur opsiwn ar y gwaelod.

Gadewch i mi ddewis o restr o yrwyr sydd ar gael ar fy nghyfrifiadur

5. Nawr dewiswch Monitor PnP Generig a chliciwch ar Next.

select Generic PnP Monitor from the list and click Next | Fix Can't Adjust Screen Brightness in Windows 10

6. Ailgychwyn eich PC i arbed newidiadau a gweld a allwch fix unable to adjust screen brightness on Windows 10 issue.

Dull 6: Diweddaru Gyrrwr Cerdyn Graffeg

If the Nvidia Graphics drivers are corrupted, outdated or incompatible then you won’t be able to adjust screen brightness in Windows 10. When you update Windows or install a third-party app then it can corrupt the video drivers of your system. In order to resolve this issue, you need to update your graphics card drivers in order to fix the underlying cause. If you face any such issues then you can easily update graphics card drivers with the help of this guide.

Update your Graphics Card Driver | Fix Can't Adjust Screen Brightness in Windows 10

Method 7: Delete hidden devices under PnP Monitors

1. Pwyswch Windows Key + R yna teipiwch devmgmt.msc a daro Enter.

2. Now from Device Manager menu click Gweld> Dangos dyfeisiau cudd.

In the Views tab click on Show Hidden Devices

3. Right-click on each of the hidden devices listed under Monitro a dewis Uninstall Dyfais.

Right-click on each of the hidden devices listed under Monitors and select Uninstall Device

4. Ailgychwyn eich PC i arbed newidiadau a gweld a allwch adjust screen brightness in Windows 10.

Dull 8: Trwsio'r Gofrestrfa

Nodyn: This method is only for users who have ATI graphics card and have Catalyst installed.

1. Pwyswch Windows Key + R yna teipiwch regedit a tharo Enter i agor Golygydd y Gofrestrfa.

Pwyswch Windows Key + R yna teipiwch regedit a tharo Enter i agor Golygydd y Gofrestrfa

2. Llywiwch i'r allwedd Gofrestrfa ganlynol:

HKEY_LOCAL_MACHINE  SYSTEM  ControlSet001  ControlClass  {4d36e968-e325-11ce-bfc1-08002be10318}  0000

3. Now double-click on the following Registry keys and set their value to 0 then click OK:

MD_EnableBrightnesslf2
KMD_EnableBrightnessInterface2

4. Next, navigate to the following key:

HKEY_LOCAL_MACHINE  SYSTEM  CurrentControlSet  Control  Class {4d36e968-e325-11ce-bfc1-08002be10318}  0001

5. Again double-click on MD_EnableBrightnesslf2 and KMD_EnableBrightnessInterface2 then set their value’s to 0.

6. Close everything and restart your PC to save changes.

Argymhellir ichi:

Rwy'n gobeithio bod y camau uchod wedi bod yn ddefnyddiol ac roeddech chi'n gallu fix Can’t Adjust Screen Brightness in Windows 10 but if you still have any questions regarding this post feel free to ask them in the comment section.