[Bug 198885] amdgpu.dc=1 on CIK (R4 Mullins APU) brightness impossible to change. by Fn or "echo".

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=198885

--- Comment #5 from Przemek (soprwa at gmail.com) ---
(In reply to Harry Wentland from comment #4)
> Thanks for reporting this. It's currently not hooked up for ASICs older than
> Carrizo. We'll take a look. 
> 
> You're right that it clashes with the kernel's 'no regressions' policy
> should we change pre-VEGA ASIC support with DC to enabled by default.

Hi Harry,

I am glad to hear that the reason is already known, and we are not searching it
blindly.

There is still time till 4.17 merge window ends, so if you would like me to try
out some patches, please do not hesitate.

Thanks,
Przemek.

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