Another video with an audio player and a progress bar and counter sometimes going backwards
** Attachment added: "stutter1.mp4" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1751191/+attachment/5060871/+files/stutter1.mp4 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1751191 Title: Using Vbox with 3D enabled, creates strange stuttering Status in xorg package in Ubuntu: New Bug description: It looks that the sequence of frames displayed at the screen is mixed up. The display goes back say ¼ a second and that gives a very strange effect. You type a letter, that letter is erased afterwards and reappears after ¼ of a second. See the ATTACHED video. You see the same type of going back a number of frames in e.g. YouTube videos, which gives a jittery effect. See also the Conky graphs going sometimes backward in both videos :) The problem only occurs if I have 3D acceleration enabled in Virtualbox and it occurred with both Ubuntu 16.04 and 17.10 hosts. It only occurs at Ubuntu 16.04 guests, the problem does not occur in Ubuntu 17.10 nor in other Linux distros including Ubuntu Mate and Xubuntu. I use Virtualbox 5.2.6 with Guest Additions 5.2.7 as recommended by Oracle on their website. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.13.0-36.40~16.04.1-generic 4.13.13 Uname: Linux 4.13.0-36-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.15 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: Thu Feb 22 23:35:36 2018 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef] (prog-if 00 [VGA controller]) InstallationDate: Installed on 2017-03-29 (330 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: innotek GmbH VirtualBox ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-36-generic root=UUID=82019235-3f7b-4b99-b622-d6bb790566d5 ro quiet splash zswap.enabled=1 Renderer: Software SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.board.name: VirtualBox dmi.board.vendor: Oracle Corporation dmi.board.version: 1.2 dmi.chassis.type: 1 dmi.chassis.vendor: Oracle Corporation dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr: dmi.product.family: Virtual Machine dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.83-1~16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.8-0ubuntu0~16.04.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.8-0ubuntu0~16.04.1 version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A xserver.bootTime: Thu Feb 22 23:13:23 2018 xserver.configfile: default xserver.errors: Failed to load module "vboxvideo" (module does not exist, 0) Failed to load module "vboxvideo" (module does not exist, 0) modeset(0): glamor initialization failed AIGLX: reverting to software rendering 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/+source/xorg/+bug/1751191/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
