Ouch, I think the log in comment #19 is pretty definitive. Does everyone/most people have those log messages in Xorg.0.log?...
[ 8.690] (II) AIGLX: Screen 0 is not DRI2 capable [ 8.690] (EE) AIGLX: reverting to software rendering -- 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/1632165 Title: modesetting driver unbearably slow on intel graphics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1632165/+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
