which desktop environment? probably caused by the new mesa, which now defaults to the Iris driver on newer Intel GPU's, you can verify this by running firefox like:
"dri_driver=i965 firefox" from a terminal ** Package changed: firefox (Ubuntu) => mesa (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1864274 Title: crunchy pixels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1864274/+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
