apport information ** Tags added: apport-collected
** Description changed: Binary package hint: xserver-xorg-video-ati HTML5 videos embedded in web pages in a certain way are unusably slow with Radeon KMS and cause xorg process to use 100% CPU. Examples of web pages with videos that cripple Xorg: http://www.dailymotion.com/openvideodemo http://hacks.mozilla.org/2010/04/account-manager-coming-to-firefox/ http://videos.videoonwikipedia.org/ There is no crash, and situation is recoverable if web page with video is closed and/or video stopped and not in view. There is an upstream bug report here: https://bugs.freedesktop.org/show_bug.cgi?id=27139 There seems to be a problem with how Firefox uses Xrender and how this is implemented in the Xorg driver, which causes usage of software fallbacks. I would guess this bug causes many web pages with HTML5 video to become unusable in Ubuntu Lucid+Firefox for users of ATI graphics cards with radeon-KMS driver. I found no Ubuntu bug report tracking this problem, so I'm reporting it now. I've got an ATI X1400 (r500) card, but this also affects r600 (from upstream report). Ubuntu Lucid x86 xserver-xorg-video-ati 1:6.13.0-1ubuntu5 firefox 3.6.3+nobinonly-0ubuntu4 + --- + Architecture: i386 + DistroRelease: Ubuntu 10.04 + DkmsStatus: Error: [Errno 2] No such file or directory + InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate i386 (20100419.1) + MachineType: LENOVO 94503HG + Package: xserver-xorg-video-ati 1:6.13.0-1ubuntu5 + PackageArchitecture: i386 + PccardctlIdent: + Socket 0: + no product info available + PccardctlStatus: + Socket 0: + no card + ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=e3d4ba28-a8a8-4b5e-9ad6-dc8920e09f2b ro quiet splash + ProcEnviron: + LANGUAGE=nb_NO:nb:en + PATH=(custom, user) + LANG=nb_NO.UTF-8 + SHELL=/bin/bash + ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2 + Tags: lucid lucid + Uname: Linux 2.6.32-22-generic i686 + UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare + dmi.bios.date: 11/05/2008 + dmi.bios.vendor: LENOVO + dmi.bios.version: 7FETA8WW (2.26 ) + dmi.board.name: 94503HG + dmi.board.vendor: LENOVO + dmi.board.version: Not Available + dmi.chassis.asset.tag: No Asset Information + dmi.chassis.type: 10 + dmi.chassis.vendor: LENOVO + dmi.chassis.version: Not Available + dmi.modalias: dmi:bvnLENOVO:bvr7FETA8WW(2.26):bd11/05/2008:svnLENOVO:pn94503HG:pvrThinkPadZ61m:rvnLENOVO:rn94503HG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: + dmi.product.name: 94503HG + dmi.product.version: ThinkPad Z61m + dmi.sys.vendor: LENOVO + system: + distro: Ubuntu + codename: lucid + architecture: i686 + kernel: 2.6.32-22-generic ** Attachment added: "BootDmesg.txt" http://launchpadlibrarian.net/49489978/BootDmesg.txt -- Xorg 100% CPU usage with HTML5 video in Firefox [Radeon KMS] https://bugs.launchpad.net/bugs/587636 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs