[Bug 98897] Macbook pro 11,5 screen flicker when AC adapter plugged in

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98897

--- Comment #13 from berg <berglh at gmail.com> ---
I can confirm this bug does not affect 4.8.6 kernel on MacBook Pro 11,5.

I built the 4.8.6 kernel this morning and do not have the same flickering
problem as I had 4.8.7 onward. I did notice a very big jump in GPU performance
though from 4.7.0 to 4.8.6 (around 35-40% improvement on OpenGL benchmark) on
the MacBook Pro 11,5 with the radeon driver. 

I did find that the GPU fan was full speed on initial first boot on 4.8.6+,
noticeably very noisy but quietened down after some time.

While I'm not experiencing any flickering on 4.8.6, I have noticed some subtle
screen tearing on Gnome Shell transitions; such as when you hit the super key.
In the past with the fglrx driver, there was an option to enable in the ATI/AMD
configuration manager to address this tearing. I just noticed this tearing as I
was looking for the flickering that this bug mentions.

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