Super User Asked by Pouriya on January 1, 2021
I installed FreeBSD 10.3 stable on my HP laptop and installed Mate desktop, but I can not change laptop’s brightness.
I used xrandr, xbacklight, redshift and they did not work. I loaded acpi_video too, but it has not hw.apic.video.
Is there a way to change brightness?
On FreeBSD 12.1 and ThinkPad I have sysctl hw.acpi.video.lcd0.brightness
Answered by user1712200 on January 1, 2021
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