Thanks. I updated my BIOS, but the problem still occurs and there seems to be no difference.
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date [sudo] password for avraham: X556UJ.405 05/20/2016 ** Changed in: xorg (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1604070 Title: Xorg freeze Status in xorg package in Ubuntu: New Bug description: Sometimes after resuming from suspend the screen becomes black with a single text line: [ 8483.420032] [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun The computer does not respond any further and the fan starts working full strength. I have to press the power button to turn off the computer and boot again. This does not happen after each suspend, but happens occasionally and I could not find any particular pattern that would cause it. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13 Uname: Linux 4.4.0-28-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia .proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 361.42 Tue Mar 22 18:10:58 PDT 2016 GCC version: gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2.1) .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Mon Jul 18 19:26:13 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: bbswitch, 0.8, 4.4.0-28-generic, x86_64: installed btusb-lp1600623, 0.1, 4.4.0-28-generic, x86_64: installed nvidia-361, 361.42, 4.4.0-28-generic, x86_64: installed ExtraDebuggingInterest: Yes, if not too technical GpuHangFrequency: Several times a week GpuHangReproducibility: Occurs more often under certain circumstances GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: Intel Corporation Sky Lake Integrated Graphics [8086:1916] (rev 07) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Skylake Integrated Graphics [1043:246a] Subsystem: ASUSTeK Computer Inc. GK208M [GeForce 920M] [1043:246a] InstallationDate: Installed on 2016-07-08 (10 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: ASUSTeK COMPUTER INC. X556UJ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-28-generic.efi.signed root=UUID=73a9e974-ef96-4d81-aa12-68ea97b2c0ad ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X556UJ.302 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X556UJ dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX556UJ.302:bd12/09/2015:svnASUSTeKCOMPUTERINC.:pnX556UJ:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX556UJ:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: X556UJ dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. version.compiz: compiz 1:0.9.12.2+16.04.20160526-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Mon Jul 18 18:58:49 2016 xserver.configfile: /etc/X11/xorg.conf xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.3-1ubuntu2.2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1604070/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp