[Solved] Dell Inspiron N5040 - Unable to adjust screen brightness

Today something broke unexpectedly and I can't adjust the brightness of the screen. The screen is dark and I cannot brighten it. Rolling back the previous driver didn't help, and when I wanted to update from Device Manager, I got a message that the system detected that the driver was up-to-date.

Graphics: Intel HD Graphics 8.15.10.2900

Quote:

The screen is dark and I cannot brighten it.

Highlight the lamp on the side, see if you have the image content under this "darkness"> eg Win desktop
What do you have after other exits?

ps
Dell Inspiron N5040 (platform 48.4IP01.011 UMA MB 10263-1)

But it wasn't that it was completely dark, just that I just couldn't make it brighter.

After rebooting, the screen is very bright and I cannot dim it.

This is what it is like in the end?

x you write that dark, now that very bright ????????????

If it is Windows 10, and "yesterday" update was downloaded, the symptom may be due to it. In this case, you can try to roll back the previous driver versions.
If the system is different, then also in this case changing / reinstalling the driver will not hurt.

The problem appeared after the update of the dozen. I will try with the latest drivers, downloaded from the manufacturer.

Added after 2 [minutes]:

lisek wrote:

This is what it is like in the end?

x you write that dark, now that very bright ????????????

After reboot. he got bright.

Recently, when installing a new Windows, I had it too, but I have dell 5010 I downloaded ati drivers from della and everything worked

I can't install the latest drivers from Intel for the graphics card because I have the message "This system does not meet the minimum requirements (...)".

Did you try on Dell's side?

No, I'll try.

Dell's drivers also don't work.

I can only change the brightness when starting my computer when the Dell logo appears.

Will someone help?