amdgpu – FreeSync does not work for me

I was wondering if someone could point out what to do wrong are my specifications

Ubuntu 18.04

5.0.7-050007-generic

ppa table 19.0.2: ubuntu-x-swat / updates

I am using an RX-580

the file in (/usr/share/X11/xorg.conf.d/10-amdgpu.conf) is

"Device" section

Identifier "AMD"

Driver "amdgpu"

Option "DRI" "3"

Option "VariableRefresh" "true"

EndSection

the output of (xrandr –props) includes (vrr_capable: 1)

the output of (cat ~ / .local / share / xorg / Xorg.0.log | grep amdgpu) is

[ 14.653] (II) LoadModule: "amdgpu"

[ 14.654] (II) Loading /usr/lib/xorg/modules/drivers/amdgpu_drv.so

[ 14.656] (II) amdgpu module: vendor = "X.Org Foundation"

All GPUs compatible with the amdgpu kernel unit

and unfortunately the output of (cat ~ / .local / share / xorg / Xorg.0.log | grep Variable) is

[ 14.794] (WW) AMDGPU (0): the option "VariableRefresh" is not used[ 14.794] (WW) AMDGPU (0): the option "VariableRefresh" is not used