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Ubuntu 16.04 (xenial) reached end-of-standard-support on April 29, 2021. I'm setting the status of this bug to 'Incomplete' as it's not seen any activity for some time. If this is still an issue when using a currently maintained release of Ubuntu then please let us know which one(s) otherwise this bug report can be left to expire in approximately 60 days time. ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- 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/1734487 Title: Nvidia optimus doesn't work for kernel later than 4.4.0-92 Status in xorg package in Ubuntu: Incomplete Bug description: Nvidia optimus driver (intel + nvidia video cards) has been working perfectly until kernel 4.4.0-92. However, after updating to later versions (96, 98, 101) it stopped working and the system is only usable by command line. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-101.124-generic 4.4.95 Uname: Linux 4.4.0-101-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia .proc.driver.nvidia.gpus.0000.09.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:09:00.0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 384.90 Tue Sep 19 19:17:35 PDT 2017 GCC version: gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.5) ApportVersion: 2.20.1-0ubuntu2.13 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' Date: Sat Nov 25 22:23:01 2017 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: bbswitch, 0.8, 4.4.0-101-generic, x86_64: installed nvidia-384, 384.90, 4.4.0-101-generic, x86_64: installed nvidia-384, 384.90, 4.4.0-92-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Haswell-ULT Integrated Graphics Controller [17aa:3800] Subsystem: Lenovo GK208M [GeForce GT 730M] [17aa:3800] InstallationDate: Installed on 2016-11-05 (385 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: LENOVO 20270 ProcEnviron: TERM=linux PATH=(custom, no user) LANG=es_ES.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-101-generic.efi.signed root=UUID=e10739b9-9c0c-4937-af9d-a7784b5bd023 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/15/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 7CCN34WW dmi.board.asset.tag: No Asset Tag dmi.board.name: Cherry 4A Touch dmi.board.vendor: LENOVO dmi.board.version: 31900058STD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: IdeaPad U430 Touch dmi.modalias: dmi:bvnLENOVO:bvr7CCN34WW:bd10/15/2013:svnLENOVO:pn20270:pvrIdeaPadU430Touch:rvnLENOVO:rnCherry4ATouch:rvr31900058STD:cvnLENOVO:ct10:cvrIdeaPadU430Touch: dmi.product.name: 20270 dmi.product.version: IdeaPad U430 Touch dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.76-1~ubuntu16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.7-0ubuntu0.16.04.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 17.0.7-0ubuntu0.16.04.2 version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.7 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+git20160325-1ubuntu1.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Sat Nov 25 22:06:20 2017 xserver.configfile: /etc/X11/xorg.conf xserver.devices: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.4-0ubuntu0.7 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1734487/+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