hello everyone, I am beginner in linux, recently i installed Xubuntu in my old laptop. brightness controller not working, tried few blog and website nothing useless..!
installed brightness controller ,t it controlling brightness but screen look like dull..
previcous system driver was
/sys/class/backlight
Intel_video(something) was here.. its change acpi_video0
grub edit : GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=acpi_videdo0"
after install Brightness Controller, it changed acpi_video0.
someone please me to solve this issue. brightness controller not working
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