The brightness adjustment in Ubuntu doesn't seem to affect the screen's brightness on your laptop.
The brightness adjustment in Ubuntu doesn't seem to affect the screen's brightness on your laptop.
You're experiencing an issue where the screen remains stuck at maximum brightness despite working brightness controls and OS settings. The problem seems to be hardware-related, as software adjustments aren't resolving it. Consider checking the display driver, ensuring the graphics card is properly recognized, and verifying that the power supply can handle the load. If needed, try resetting the display or consulting Asus support for further assistance.
You might explore these adjustments. https://askubuntu.com/questions/1049681/...us-rog-lap
I think the same problem is involved, though the description was phrased differently. The issue wasn't that the function keys didn't work, just as yours isn't, but the brightness function keys didn't change screen brightness, just like yours aren't. You might want to try another approach first. This method offers a much cleaner solution if it works for you. https://askubuntu.com/questions/1045624/...63#1045763
I attempted the method from the previous link you shared, but it didn’t work. The second link appears to be exactly what I needed, though I don’t have a nv_backlight folder in /sys/class/backlight. I only have acpi_video0 and acpi_video1, which don’t seem to affect brightness. Searching for ways to access nv_backlight didn’t yield results, as most sources assumed the backlight was already present. Some suggested using gmux_brightness, but I also lack that folder. I recently updated the NVIDIA drivers to verify, but it didn’t help.