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Increasing brightness on Thinkpad t480

Posted: Mon Jan 18, 2021 12:48 am
by behappy
I installed the latest release of GhostBSD. I am using a Thinkpad t480. I noticed the screen isn't very bright. How do I adjust it? I am using the Mate desktop.

Thanks

Re: Increasing brightness on Thinkpad t480

Posted: Mon Jan 18, 2021 9:29 am
by ericbsd
Does the Brightness key on your laptop works?

Re: Increasing brightness on Thinkpad t480

Posted: Mon Jan 18, 2021 5:00 pm
by Vermilion
behappy wrote: Mon Jan 18, 2021 12:48 am I installed the latest release of GhostBSD. I am using a Thinkpad t480. I noticed the screen isn't very bright. How do I adjust it? I am using the Mate desktop.

Thanks
If the brightness key is not working I use

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# sudo pkg install intel-backlight

# intel_backlight XY
XY is a value from 1 to 100 percentage of the screen brightness.

Re: Increasing brightness on Thinkpad t480

Posted: Sat Feb 06, 2021 10:33 am
by Huck
Wow. I was having the same issue and did a search and landed in here.. and that code solved the problem. Thank you, Vermilion. I just wish my brightness buttons worked. Anyway to address that? This is an HP "Envy" laptop with traditional (American) English keyboard.

- huck

Re: Increasing brightness on Thinkpad t480

Posted: Mon Feb 08, 2021 8:14 am
by Vermilion
Does

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kldstat
show

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acpi_video
?