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

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

--- Comment #5 from Alexandre Pereira pereira.alex@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.