The problem was confirmed by Ilia Mirkin at the xorg bug tracker, and nobody will look into the problem, because "resume issues are notoriously difficult to investigate".
https://bugs.freedesktop.org/show_bug.cgi?id=88946 Please set this bug report to "Won't Fix'. Best regards, Bernhard ** Changed in: xserver-xorg-video-nouveau-lts-utopic (Ubuntu) Status: New => Confirmed ** Bug watch added: freedesktop.org Bugzilla #88946 https://bugs.freedesktop.org/show_bug.cgi?id=88946 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1421992 Title: [nouveau] NVC1 (GT 430) black screen after resuming from hibernate To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau-lts-utopic/+bug/1421992/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs