** Summary changed: - bad double buffering or vertical sync + Video tearing with KMS (no video overlay available)
** Description changed: - Binary package hint: xserver-xorg-video-ati + [Problem] + Videos tear (show portions of two consecutive frames simultaneously) when KMS is used. In Karmic it did not do this because of video overlay, which is not yet available with KMS. - Reproducing video with totem or mplayer does not go smoothly, - consecutive frames are mixed. It looks as if that double buffering was - not being use or the buffer swapping was not synchronized with video - vertical sync. + [Workarounds] + a) Turn off kernel modesetting by using the radeon.modeset=0 option on the kernel boot line. + + or + + b) Use xvattr to set XV_BICUBIC to 0. Note that some IGPs are not + powerful enough to support bicubic filtering so turning it off may help. + + [Original Report] + Reproducing video with totem or mplayer does not go smoothly, consecutive frames are mixed. It looks as if that double buffering was not being use or the buffer swapping was not synchronized with video vertical sync. It happens both in full screen and in window mode. I didn't have this problem with Ubuntu 9.10. ProblemType: Bug Architecture: amd64 Date: Fri Jan 29 12:17:36 2010 DistroRelease: Ubuntu 10.04 DkmsStatus: - virtualbox-ose, 3.1.2, 2.6.32-12-generic, x86_64: installed - virtualbox-ose, 3.1.2, 2.6.32-11-generic, x86_64: installed - virtualbox-ose, 3.1.2, 2.6.32-10-generic, x86_64: installed + virtualbox-ose, 3.1.2, 2.6.32-12-generic, x86_64: installed + virtualbox-ose, 3.1.2, 2.6.32-11-generic, x86_64: installed + virtualbox-ose, 3.1.2, 2.6.32-10-generic, x86_64: installed InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20091209) MachineType: Hewlett-Packard HP dx5150 SFF Package: xserver-xorg-video-radeon 1:6.12.99+git20100126.e5933fd7-0ubuntu1 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-12-generic root=UUID=564eb7dd-0d11-4482-b882-f3794a37eb34 ro quiet splash ProcEnviron: - LANG=en_US.utf8 - SHELL=/bin/bash + LANG=en_US.utf8 + SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.32-12.16-generic RelatedPackageVersions: - xserver-xorg 1:7.5+1ubuntu2 - libgl1-mesa-glx 7.7-0ubuntu8 - libdrm2 2.4.17-0ubuntu2 - xserver-xorg-video-intel 2:2.9.1-1ubuntu3 + xserver-xorg 1:7.5+1ubuntu2 + libgl1-mesa-glx 7.7-0ubuntu8 + libdrm2 2.4.17-0ubuntu2 + xserver-xorg-video-intel 2:2.9.1-1ubuntu3 SourcePackage: xserver-xorg-video-ati Uname: Linux 2.6.32-12-generic x86_64 dmi.bios.date: 02/24/2006 dmi.bios.vendor: Phoenix Technologies, LTD dmi.bios.version: 1.13 dmi.board.name: 09AC dmi.board.vendor: MSI dmi.chassis.asset.tag: CZC62933NH dmi.chassis.type: 3 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr1.13:bd02/24/2006:svnHewlett-Packard:pnHPdx5150SFF:pvr:rvnMSI:rn09AC:rvr:cvnHewlett-Packard:ct3:cvr: dmi.product.name: HP dx5150 SFF dmi.sys.vendor: Hewlett-Packard glxinfo: Error: [Errno 2] No such file or directory system: - distro: Ubuntu - architecture: x86_64kernel: 2.6.32-12-generic + distro: Ubuntu + architecture: x86_64kernel: 2.6.32-12-generic -- Video tearing with KMS (no video overlay available) https://bugs.launchpad.net/bugs/514245 You received this bug notification because you are a member of Ubuntu-X, which is the registrant for xserver-xorg-driver-ati. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
