Comment 2 for bug 1692038

I run into the same issue on 17.04. I have three monitors and the two secondary monitors become nonresponsive as well. If I logout out, it fixes the issue. My CPU and GPU below.

     *-cpu
          product: Intel(R) Xeon(R) CPU E3-1231 v3 @ 3.40GHz
           *-display
                description: VGA compatible controller
                product: Fiji [Radeon R9 FURY / NANO Series]
                vendor: Advanced Micro Devices, Inc. [AMD/ATI]
                physical id: 0
                bus info: pci@0000:01:00.0
                version: cb
                width: 64 bits
                clock: 33MHz
                capabilities: vga_controller bus_master cap_list rom
                configuration: driver=amdgpu latency=0