The problem is that i have another trackpad. the ELAN trackpad. So i installed the right drivers for my trackpad. But the brightness keys are not working. I need to do a DSDT patch so that my brightness keys will work. but i can't compile the DSDT. Even without making any changes. I hope someone...
How did you fix it? I have exactly the same problem as you. i deleetd "{}" but one error remains.
The error at If (IGDS (^^^GFX0.GHDS (Zero), Sleep (0x01F4)))
(have also the lenovo Y50}
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