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rated 0 times [ 1] [ 0] / answers: 1 / hits: 1832 / 1 Year ago, wed, may 3, 2023, 5:51:38

Cannot adjust brightness on my Thinkpad T430.

Is there another way to fix this?

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1 Year ago

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answered 1 Year ago pipeag · Accepted Answer

Already found a solution. Add a acpi_osi='!Windows 2012' option to /etc/default/grub:

GRUB_CMDLINE_LINUX_DEFAULT="splash quiet acpi_osi='!Windows 2012'"

And then run:

sudo update-grub