Can’t control anymore the brightness with linux510.
linux58 had no problem and I run linux54 fine too.
Keys to control the brightness are inefficient, as the command xbacklight!
When I run linux54, there is a /sys/class/backlight/nvidia_0/brightness and the brightness control works OOB.
When I run linux510, there is a /sys/class/backlight/acpi_video0/brightness and the brightness control doesn’t work and the nvidia driver is in use.
I’m also facing similar situation after latest stable update. Tried every solution posted on different forums also but none worked.
Some common solutions are given in this post Can't adjust screen brightness (Lenovo Laptop, NVIDIA, XFCE) but it didn’t work.
After setting kernel param acpi_backlight=vendor, this path is accessible /sys/class/backlight/ideapad/brightness
Anyone having solutions to fix the problem with brightness control?
Is it a kernel issue or driver problem?