It did not re-occur recently, so I think it can be closed as "fixed" by the newer package for now.
** Changed in: mesa (Ubuntu) Status: New => Fix Released -- 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/2013533 Title: segfault in iris_dri.so when resuming from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/2013533/+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