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I bought thinkpad t14 (AMD) and downloaded eOS to it. But i can't change the brightness in anyway. the brightness window pops up but brightness does not change. I have found Intel fixes from command line but not anything for AMD.

$ ls /sys/class/backlight -gives me only acpi_video0.

Is there way to fix it? (New to linux)

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  • Same problem, using a Lenovo Yoga 6 13ARE05. Any help much appreciated. – erj Feb 8 at 17:56

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