I cannot adjust screen brightness in Windows 10
I have Lenovo Ideapad Z510 with Intel(R) HD Graphics 4600 and NVIDIA GeForce 840M and I cannot adjust the screen brightness, I think now it is 100%.
Yesterday there was no problems and it wasn't 100% bright. Might be due to an update. Normally I was adjusting the brightness with F11 and F12, they don't work now. Other keys suchs as F7 and F9 work without problem. When I search for "adjust screen brightness" I can see that there is a menu for that but when I click it shows me search results page with all settings, and there is no "adjust screen brightness".
Also I have tried to adjust screen brightness from power options but "screen brightness" doesn't exit there anymore. And I have reinstalled Intel drivers for graphics, it didn't help. What else I can do?
- Search for Device Manager in Start Menu
- Expand the Monitors section
- Right click on Generic PnP Monitor and
- Click on Enable and you are good!
Source
This problem might appear with any graphics card on any laptop brand if you have installed the TeamViewer monitor driver to speed up change tracking on the screen.
To uninstall it, right click the Windows Start icon, choose Device Manager, expand Monitors, double click the Generic PnP Monitor and press Uninstall on the Driver tab. Now you have brightness controls again :)
There is an Uninstall button in TeamViewer next to the Extras->Options->Advanced->Advanced Network Options->Install monitor driver label if you have installed this driver, but that did not work for me.
In my Lenovo G500 laptop after installing Windows 10 I couldn't adjust the screen brightness. And I couldn't see the Generic PnP Monitor option under the Monitor section of my device manager list. I had installed the Intel HD 4000 Graphics and AMD Radeon Graphics drivers. Enabling and disabling it doesn't help either.
But the thing is I haven't installed the Intel Chipset Driver software. After installing the motherboard driver software I was able to adjust the screen brightness after a system restart. And now under Display settings Windows has the Screen brightness slider added. Also the shortcut to increase and decrease using F11 and F12 also works. You can also click the battery icon near the tray and change the battery percentages to 0%, 25%, 75% & 100%. These options were not enabled before installing the motherboard(Chipset) drivers.
If all else fails, most laptops (especially newer ones) allow you to change the main monitor's brightness in the BIOS. Of course this isn't ideal, but if nothing else works, it's better than nothing.