Public bug reported: After updating the Ubuntu HWE stack in 14.04 to Wily (kernel 4.2 and xserver-xorg-video-radeon-lts-wily), system boots up fine, but screen is laggy; although DRI3 is now enabled (according to Xorg.0.log), 2D acceleration seems to be gone.
System is an older Pentium laptop (Packard Bell EasyNote) with a Radeon Xpress 200M chip (r300 driver). Video acceleration was working with DRI2 under the Vivid stack (kernel 3.19-64-lowlatency + xserver-xorg-video- radeon-lts-vivid). I'm using a 14.04 LTS-based distro, ElementaryOS, with vanilla Ubuntu HWE stacks. (Testing with Oibaf's PPA or Xorg-edgers repo did not solve the problem either, so I purged the PPAs and reverted to official Ubuntu sources) We already bisected and tested Xorg versions with the package maintainers, and could not determine a consistent culprit, so the suggestion is that perhaps a newer Mesa version after Vivid is impairing video acceleration in 2D content display. Which Mesa package could be showing a regression, I do not know how to assess, so I'm eager for your input. Here is the original report, with logs and bisect results: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1598593 Tell me what else you need, I'll get it for you. ** Affects: mesa (Ubuntu) Importance: Undecided Status: New ** Tags: acceleration dri mesa radeon -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1646140 Title: Radeon Xpress 200M - performance regression in video playback with Wily stack (Vivid is last working stack) Status in mesa package in Ubuntu: New Bug description: After updating the Ubuntu HWE stack in 14.04 to Wily (kernel 4.2 and xserver-xorg-video-radeon-lts-wily), system boots up fine, but screen is laggy; although DRI3 is now enabled (according to Xorg.0.log), 2D acceleration seems to be gone. System is an older Pentium laptop (Packard Bell EasyNote) with a Radeon Xpress 200M chip (r300 driver). Video acceleration was working with DRI2 under the Vivid stack (kernel 3.19-64-lowlatency + xserver- xorg-video-radeon-lts-vivid). I'm using a 14.04 LTS-based distro, ElementaryOS, with vanilla Ubuntu HWE stacks. (Testing with Oibaf's PPA or Xorg-edgers repo did not solve the problem either, so I purged the PPAs and reverted to official Ubuntu sources) We already bisected and tested Xorg versions with the package maintainers, and could not determine a consistent culprit, so the suggestion is that perhaps a newer Mesa version after Vivid is impairing video acceleration in 2D content display. Which Mesa package could be showing a regression, I do not know how to assess, so I'm eager for your input. Here is the original report, with logs and bisect results: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1598593 Tell me what else you need, I'll get it for you. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1646140/+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
