[Bug 101877] R9 390 with multiple monitors always using highest memory clock

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101877

--- Comment #5 from Alexandre Pereira <pereira.alex at gmail.com> ---
I have a similar problem.

I have a Rx 580 with 2 exactly equal monitors. On windows, there is no issue
and memory clock is always at 300mhz, except when gaming.

When on linux, If using graphical display, memory clock is always MAX.
If i am only on the tty's ( text mode only ) I can set it to 300mhz, after
changing memory clock pp setting ( echo 1 > pp_mclk_od ).

Like the op, drawing 40 watts more power than windows, is very undesirable,
besides also running much cooler on windows. Also on windows I never saw any
problem whatsoever with it running at minimum 300mhz.

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