I have same behaviour on notebook with AMD A4-5000 APU with embedded [AMD/ATI] Kabini [Radeon HD 8330]. When I press "Log Out ..." button or make screenshot - Xorg starts eating 100% of one CPU core for long time. Ctrl-Alt-F1, Ctrl-Alt-F7 pop ups logout selector window immediately. Changing driver to proprietary fglrx is helped too. I have tried to install 4.2 kernel with "apt-get install linux-generic-lts-wily", but it does not helped. $ uname -a Linux hp17 4.2.0-23-generic #28~14.04.1-Ubuntu SMP Thu Dec 31 13:40:42 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1456326 Title: XServer eats up 100% cpu and is very slow on specific tasks with xfce desktop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1456326/+subscriptions _______________________________________________ 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
