If video is lagging in the browser too then this is either a general graphics performance issue or you have multiple issues.
That said, you do seem to be using your Intel GPU more than the Nvidia one according to the above logs, so please try this for smoother video playback: 1. sudo apt install ubuntu-restricted-addons vainfo mpv 2. Try playing video in 'totem' or 'mpv' If that doesn't solve then problem then please run 'vainfo' and send us the output. ** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: 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/1777384 Title: video lags Status in Ubuntu: Incomplete Bug description: video lagging in browser and vlc too. audio is okey, but video is lagging. Cheese lagging too. Sorry for my english. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7 ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 Uname: Linux 4.15.0-23-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Mon Jun 18 10:54:42 2018 DistUpgraded: 2018-06-15 19:45:16,063 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: bionic DistroVariant: ubuntu DkmsStatus: virtualbox, 5.2.10, 4.13.0-43-generic, x86_64: installed virtualbox, 5.2.10, 4.15.0-23-generic, x86_64: installed ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 620 [8086:5916] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company HD Graphics 620 [103c:8231] Subsystem: Hewlett-Packard Company GM108M [GeForce 930MX] [103c:8232] InstallationDate: Installed on 2018-04-22 (56 days ago) InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 138a:003f Validity Sensors, Inc. VFS495 Fingerprint Reader Bus 001 Device 003: ID 8087:0a2a Intel Corp. Bus 001 Device 002: ID 04f2:b5ae Chicony Electronics Co., Ltd Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP ProBook 450 G4 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic root=UUID=846c7c97-d714-4172-acce-be790f53c7ca ro quiet splash vt.handoff=1 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to bionic on 2018-06-15 (2 days ago) dmi.bios.date: 06/18/2017 dmi.bios.vendor: HP dmi.bios.version: P85 Ver. 01.06 dmi.board.name: 8231 dmi.board.vendor: HP dmi.board.version: KBC Version 42.65 dmi.chassis.asset.tag: 5CD7335MGS dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrP85Ver.01.06:bd06/18/2017:svnHP:pnHPProBook450G4:pvr:rvnHP:rn8231:rvrKBCVersion42.65:cvnHP:ct10:cvr: dmi.product.family: 103C_5336AN HP ProBook dmi.product.name: HP ProBook 450 G4 dmi.sys.vendor: HP version.compiz: compiz 1:0.9.13.1+18.04.20180302-0ubuntu1 version.libdrm2: libdrm2 2.4.91-2 version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc5-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc5-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 xserver.bootTime: Wed Jun 13 09:35:49 2018 xserver.configfile: default xserver.errors: Failed to load module "nvidia" (module does not exist, 0) Failed to load module "nvidia" (module does not exist, 0) NOUVEAU(G0): [XvMC] Failed to initialize extension. xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.19.5-0ubuntu2~16.04.1 xserver.video_driver: modeset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1777384/+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