@jbicha thanks for you explanation. So does it mean that the bug 1628866 is not a duplicated of this one ? Or that I am affected by another bug ? I saw around a few report about the same problem with chrome (in ubuntu 16.10 and 16.04).
I checked that also chromium is affected -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1615871 Title: Poor performance with WebKit on yakkety with Intel modesetting enabled Status in WebKit: Fix Released Status in xf86-video-intel: Unknown Status in webkit2gtk package in Ubuntu: Fix Released Status in webkitgtk package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: https://tjaalton.wordpress.com/2016/07/23/intel-graphics-gen4-and- newer-now-defaults-to-modesetting-driver-on-x/ There are reports that WebKitGTK performance is much worse with Intel's modesetting driver (which was enabled a month ago for yakkety). Upstream bug attached. To manage notifications about this bug go to: https://bugs.launchpad.net/webkit-open-source/+bug/1615871/+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

