kylemanna
2/25/2017 - 11:13 PM

amdgpu.conf

# /etc/X11/xorg.conf.d/amdgpu.conf
#
# Due to the amdgpu driver having issues with not getting valid EDID data when
# resuming from wake, hardcode the preferred video mode after copying it form
# the EDID.
#

Section "Device"
	Identifier "GPU0"
	Driver "amdgpu"
	Option "Monitor-DisplayPort-0" "Monitor0"
	Option "Monitor-DisplayPort-1" "Monitor1"
EndSection

Section "Modes"
	Identifier "2160M"
	# EDID from LG 27UD58
	Modeline "3840x2160M"  533.25  3840 3888 3920 4000  2160 2214 2219 2222 +hsync -vsync
EndSection

Section "Monitor"
	Identifier "Monitor0"
	Option "Primary" "true"
	UseModes "2160M"
	Option "PreferredMode" "3840x2160M"
EndSection

Section "Monitor"
	Identifier "Monitor1"
	Option "RightOf" "Monitor0"
	UseModes "2160M"
	Option "PreferredMode" "3840x2160M"
EndSection