Further information here: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1598593
(Please advise if I should mark this as duplicate or refer the previous report to someone else) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-lts-transitional in Ubuntu. https://bugs.launchpad.net/bugs/1604077 Title: Performance regression and no DRI3 acceleration in xserver-xorg-video- radeon-lts-wily Status in xorg-lts-transitional package in Ubuntu: New Status in xorg-lts-wily package in Ubuntu: New Bug description: Performance regression and no DRI3 acceleration in xserver-xorg-video- radeon-lts-wily, unless one specifies Option "DRI3" "1" in xorg.conf. Then, performance is *even worse*, in comparison to xserver-xorg-video-radeon-lts-vivid: Desktop is laggy, video playback is choppy, tearing occurs. Package is official Ubuntu 14.04. I've been sticking to the -lts-vivid stack for stability, but when upgrading to the -lts-wily stack for kernel 4.2, while the system runs a bit smoother, video performance is severely affected. System is a dual-core x86 Pentium laptop, 2Gb RAM. This report was previously dismissed ad invalid. I'm reporting it again, as it is not. Please test both scenarios, without and with xorg.conf enabling DRI3; running glmark2 showed correlation with performance degradation. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-lts-transitional/+bug/1604077/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
