The "MUTTER_DEBUG_DISABLE_TRIPLE_BUFFERING" option only exists in Ubuntu 22.04. It has changed names a couple of times since then, but I doubt that was actually fixing your issue. More likely it is MUTTER_DEBUG_USE_KMS_MODIFIERS=0 helping. But since it sounds like you're on 22.04 then there could be a number of other problems with the Nouveau driver, so please log a new bug from the affected machine instead of commenting on this one.
-- 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/2097566 Title: Black screen with nouveau after system update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097566/+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