Comment 16 for bug 1727401

Test the same hardware as comment #15. This time I use proposed stack. I could not reproduce the issue.

More information for reference (including the package information):

ubuntu@201507-18697:~$ DISPLAY=:0 glxgears
Running synchronized to the vertical refresh. The framerate should be
approximately the same as the monitor refresh rate.
308 frames in 5.0 seconds = 61.559 FPS
299 frames in 5.0 seconds = 59.612 FPS
299 frames in 5.0 seconds = 59.598 FPS

ubuntu@201507-18697:~$ DISPLAY=:0 DRI_PRIME=1 glxgears
Running synchronized to the vertical refresh. The framerate should be
approximately the same as the monitor refresh rate.
325 frames in 5.0 seconds = 64.859 FPS
300 frames in 5.0 seconds = 59.990 FPS
300 frames in 5.0 seconds = 59.792 FPS
297 frames in 5.0 seconds = 59.214 FPS
298 frames in 5.0 seconds = 59.584 FPS
301 frames in 5.0 seconds = 60.008 FPS
301 frames in 5.0 seconds = 60.000 FPS

ubuntu@201507-18697:~$ uname -a
Linux 201507-18697 4.13.0-25-generic #29-Ubuntu SMP Mon Jan 8 21:14:41 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

ubuntu@201507-18697:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful
ubuntu@201507-18697:~$

ubuntu@201507-18697:~$ dpkg -l libdrm-common libdrm2 libcapnp-0.5.3 libdrm-amdgpu1 libwayland-egl1-mesa libwayland-client0 libwayland-server0 libegl1-mesa libgbm1 libmircore1 libmircommon7 libmirprotobuf3 libmirclient9 libllvm5.0 libgl1-mesa-dri
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-=============================================-===========================-===========================-===============================================================================================
ii libcapnp-0.5.3:amd64 0.5.3-2ubuntu2 amd64 Cap'n Proto C++ library
ii libdrm-amdgpu1:amd64 2.4.83-1 amd64 Userspace interface to amdgpu-specific kernel DRM services -- runtime
ii libdrm-common 2.4.83-1 all Userspace interface to kernel DRM services -- common files
ii libdrm2:amd64 2.4.83-1 amd64 Userspace interface to kernel DRM services -- runtime
ii libegl1-mesa:amd64 17.2.4-0ubuntu1~17.10.2 amd64 free implementation of the EGL API -- runtime
ii libgbm1:amd64 17.2.4-0ubuntu1~17.10.2 amd64 generic buffer management API -- runtime
ii libgl1-mesa-dri:amd64 17.2.4-0ubuntu1~17.10.2 amd64 free implementation of the OpenGL API -- DRI modules
ii libllvm5.0:amd64 1:5.0-3 amd64 Modular compiler and toolchain technologies, runtime library
ii libmirclient9:amd64 0.28.0+17.10.20171011.1-0ub amd64 Display server for Ubuntu - client library
ii libmircommon7:amd64 0.28.0+17.10.20171011.1-0ub amd64 Display server for Ubuntu - shared library
ii libmircore1:amd64 0.28.0+17.10.20171011.1-0ub amd64 Display server for Ubuntu - shared library
ii libmirprotobuf3:amd64 0.28.0+17.10.20171011.1-0ub amd64 Display server for Ubuntu - RPC definitions
ii libwayland-client0:amd64 1.14.0-1 amd64 wayland compositor infrastructure - client library
ii libwayland-egl1-mesa:amd64 17.2.4-0ubuntu1~17.10.2 amd64 implementation of the Wayland EGL platform -- runtime
ii libwayland-server0:amd64 1.14.0-1 amd64 wayland compositor infrastructure - server library

ubuntu@201507-18697:~$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Skylake Host Bridge/DRAM Registers [8086:1904] (rev 08)
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 520 [8086:1916] (rev 07)
00:04.0 Signal processing controller [1180]: Intel Corporation Skylake Processor Thermal Subsystem [8086:1903] (rev 08)
00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller [8086:9d2f] (rev 20)
00:14.2 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Thermal subsystem [8086:9d31] (rev 20)
00:16.0 Communication controller [0780]: Intel Corporation Sunrise Point-LP CSME HECI #1 [8086:9d3a] (rev 20)
00:16.3 Serial controller [0700]: Intel Corporation Device [8086:9d3d] (rev 20)
00:17.0 SATA controller [0106]: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] [8086:9d03] (rev 20)
00:1c.0 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port [8086:9d10] (rev f0)
00:1c.4 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 [8086:9d14] (rev f0)
00:1d.0 PCI bridge [0604]: Intel Corporation Device [8086:9d1a] (rev f0)
00:1f.0 ISA bridge [0601]: Intel Corporation Sunrise Point-LP LPC Controller [8086:9d48] (rev 20)
00:1f.2 Memory controller [0580]: Intel Corporation Sunrise Point-LP PMC [8086:9d21] (rev 20)
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-LP HD Audio [8086:9d70] (rev 20)
00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-LP SMBus [8086:9d23] (rev 20)
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection I219-LM [8086:156f] (rev 20)
01:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445] [1002:6900] (rev 81)
02:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 2a)
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader [10ec:525a] (rev 01)
ubuntu@201507-18697:~$