14.04 - Graphics invert colors on HDMI monitor after waking from suspend

i have 2 monitors on computer, both of work in general. when wake suspend, colors on many system-specific windows (eg. file browser) inverted.

the colors inverted on right monitor, work fine on left monitor. repeatable, , happens when waking suspend. if screen capture, colors correct.

any ideas how fix this? here computer specifics:

add:

option         "colorspace" "rgb"

in section "screen" file etc/x11/xorg.conf

disable dpms if occur after suspend.

xset -dpms  <----- disble !

if file xorg.conf not exist:

sudo gedit  /etc/modprobe.d/radeon.conf option "colorspace" "rgb"

Primitatvve