Patrik Bubák, thank you for reporting this and helping make Ubuntu better.
Could you please run the following command once from a terminal by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information: apport-collect -p mesa 1334721 When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs. ** Changed in: mesa (Ubuntu) Importance: Undecided => Low ** Changed in: mesa (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1334721 Title: Multicore rendering causes performance issues Status in mesa package in Ubuntu: Incomplete Bug description: https://github.com/ValveSoftware/Source-1-Games/issues/1739 I've had an issue on my system with most games with the Multicore Rendering feature, even though disabled in most cases the performance for the same game on Windows 7 was significantly lower, the game was unplayable. The current version I'm running is 10.1.3 on Ubuntu 14.04 x64. I'll provide the necessary logs just post the commands for them. It was difficult for me to trace the exact package via "ubuntu-bug". To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1334721/+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
