I decided I add the tag: 'kernel-fixed-upstream', because I couldn't reproduce it when I tested it 2nd and 3rd time for minutes.
** Tags added: kernel-fixed-upstream -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1777238 Title: video lag Status in linux package in Ubuntu: Confirmed Bug description: The problem exists for months and I didn't find a good answer on it. It affects many softwares: Cheese, Super Tux Cart, VLC (when I rewind the video the sounds continues, but the video stops), youtube, Hangouts and every software where video is played. I experienced that there are 2 things that can break it: - if I move the mouse out and in on the affected window (it doesn't work in full screen) - if I open the system monitor, the problem also disappears other people also face with this problem: https://unix.stackexchange.com/questions/447696/ubuntu-16-04-18-04-video-playback-lags-stutters https://askubuntu.com/questions/1032035/ubuntu-18-04-budgie-desktop-video-lag-youtube-twitch-in-chrome https://askubuntu.com/questions/1030074/my-video-player-in-ubuntu-18-04-lts-lags/1030194 https://askubuntu.com/questions/1030155/youtube-video-lag-on-18-04 Ubuntu 4.15.0-23.25-generic 4.15.18 it was upgraded from 16.04 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: cheese 3.28.0-1ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 Uname: Linux 4.15.0-23-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sat Jun 16 14:34:26 2018 ExecutablePath: /usr/bin/cheese InstallationDate: Installed on 2016-08-04 (680 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Dell Inc. Latitude E5440 RelatedPackageVersions: cheese 3.28.0-1ubuntu1 cheese-common 3.28.0-1ubuntu1 SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-04-02 (74 days ago) dmi.bios.date: 05/01/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 009TY8 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA06:bd05/01/2014:svnDellInc.:pnLatitudeE5440:pvr01:rvnDellInc.:rn009TY8:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E5440 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: vandor 3436 F.... pulseaudio /dev/snd/controlC1: vandor 3436 F.... pulseaudio /dev/snd/controlC0: vandor 3436 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=b5a3c617-9443-458f-92a3-63eea1f57d5c InstallationDate: Installed on 2016-08-04 (681 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Dell Inc. Latitude E5440 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic root=UUID=38affd30-88f0-4a36-b9ae-6b5c210844b4 ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-23-generic N/A linux-backports-modules-4.15.0-23-generic N/A linux-firmware 1.173.1 Tags: bionic Uname: Linux 4.15.0-23-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-04-02 (74 days ago) UserGroups: adm bumblebee cdrom dip docker libvirt libvirtd lpadmin mail plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 05/01/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 009TY8 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA06:bd05/01/2014:svnDellInc.:pnLatitudeE5440:pvr01:rvnDellInc.:rn009TY8:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E5440 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1777238/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp