I also have Intel graphics and can reproduce this bug with Ubuntu (on X) but not with Ubuntu on Wayland.
** Summary changed: - After login the screen "crumbles" for few seconds + After login the screen pixelates for few seconds on GNOME on X -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1753776 Title: After login the screen pixelates for few seconds on GNOME on X To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1753776/+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