brightness control not working windows 7 lenovo

#BRIGHTNESS CONTROL NOT WORKING WINDOWS 7 LENOVO DRIVERS#
#BRIGHTNESS CONTROL NOT WORKING WINDOWS 7 LENOVO DRIVER#

Scroll through the file until you find the line: Section 'Device' then add: Option 'RegistryDwords' 'EnableBrightnessControl=1' In my case the nf file was generated in etc/X11/nf.įinally, navigate to that directory and edit the xorg configuration file by doing for example: Press the corresponding button (circled in the image below) in the same tab and take note of where the nf file was generated. Once you see that your screen has been detected you can now generate an xorg configuration file. You should see in the X server Display Configuration tab that your laptop screen has been detected as underlined in the image below (Without step 1 it will show that PRIME is selected).

#BRIGHTNESS CONTROL NOT WORKING WINDOWS 7 LENOVO DRIVER#

This should fix the problem for the nouveau driver but not the proprietary one.Īccess the nvidia-settings from the terminal. To fix that, when booting, enter the UEFI Firmware settings and change the graphics from switchable to discrete.

#BRIGHTNESS CONTROL NOT WORKING WINDOWS 7 LENOVO DRIVERS#

It turned out that when using switchable graphics,the ubuntu drivers are unable to detect the laptop screen. I managed to solve this issue by following a few steps: If anyone has found another fix for the Legion 5 or faced a similar issues, please advise. Here are some of the tutorials I have followed, with none working: I had to use Timeshift to return it to normal.

It is perhaps worth noting that with nf solutions, sometimes vertical green lines appear on the background and the fonts become all blurry or missing. I also tried editing files in /usr/share/X11/, like for example the nf and I tried creating a 20/nf file, but nothing has worked so far. I found an intel_backlight folder in /sys/class/backlight and I tried changing the GRUB several times adding acpi_backlight = vendor, none or video after quick splash. I managed to change the brightness by installing the brightness controller app but it is not a perfect solution. The brightness keys or slider don't work on Ubuntu, but they have no problem on windows. I have a Lenovo Legion 5 15IMH05H with a NVIDIA GeForce RTX 2060 6GB GDDR6/Intel Corporation UHD Graphics (rev 05) and an Intel Processor.Īfter dual booting windows and Ubuntu 20.04, I encountered a few issues with changing the display brightness.

Brightness control not working windows 7 lenovo