first bad commit: [fc8c70526bd30733ea8667adb8b8ffebea30a8ed] drm/radeon: Prefer lower feedback dividers

[Borislav Petkov]

Hi,

this patch breaks X on my box - it is fully responsive and I can log in
into it from another machine but both monitors are black and show this:

"The current input timing is not supported by the monitor display. Please

change your input timing to 1920x1200 at 60Hz or any other monitor

listed timing as per the monitor specifications."

Reverting it fixes the issue.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette