Hi, I can't reproduce this issue with a fresh installed Artful on the I+A system[1] with gfx - Intel Corporation HD Graphics 520 [8086:1916] (rev 07) - Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445] [1002:6900] (rev 81) I might need more information to reproduce and make sure this issue on Artful as well. --- [1] Test machine - CID 201507-18697 - Dell Latitude E5570 [2] More information for reference (including 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. 359 frames in 5.0 seconds = 71.667 FPS 300 frames in 5.0 seconds = 59.997 FPS 301 frames in 5.0 seconds = 60.002 FPS 300 frames in 5.0 seconds = 59.996 FPS 300 frames in 5.0 seconds = 60.000 FPS 301 frames in 5.0 seconds = 60.002 FPS 300 frames in 5.0 seconds = 59.996 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. 302 frames in 5.0 seconds = 60.321 FPS 301 frames in 5.0 seconds = 59.996 FPS 301 frames in 5.0 seconds = 60.005 FPS 301 frames in 5.0 seconds = 59.989 FPS 301 frames in 5.0 seconds = 60.008 FPS ubuntu@201507-18697:~$ uname -a Linux 201507-18697 4.13.0-16-generic #19-Ubuntu SMP Wed Oct 11 18:35:14 UTC 2017 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:~$ apt-cache policy libdrm-amdgpu1 libdrm-amdgpu1: Installed: 2.4.83-1 Candidate: 2.4.83-1 Version table: *** 2.4.83-1 500 500 http://us.archive.ubuntu.com/ubuntu artful/main amd64 Packages 500 http://archive.ubuntu.com/ubuntu artful/main amd64 Packages 100 /var/lib/dpkg/status ubuntu@201507-18697:~$ apt-cache policy libgl1-mesa-dri libgl1-mesa-dri: Installed: 17.2.2-0ubuntu1 Candidate: 17.2.2-0ubuntu1 Version table: *** 17.2.2-0ubuntu1 500 500 http://us.archive.ubuntu.com/ubuntu artful/main amd64 Packages 500 http://archive.ubuntu.com/ubuntu artful/main amd64 Packages 100 /var/lib/dpkg/status 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 17.2.2-0ubuntu1 amd64 free implementation of the EGL API -- runtime ii libgbm1:amd64 17.2.2-0ubuntu1 amd64 generic buffer management API -- runtime ii libgl1-mesa-dri:amd64 17.2.2-0ubuntu1 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 17.2.2-0ubuntu1 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)