I'm experiencing the same issue. When using kernel 3.17 everything's fine but with kernel 3.18 or 3.19 the screen goes black intermittently but pretty often.
If I change the brightness of my screen I can see the black goes a bit brighter if that makes sense. Sometimes I can press the sleep button and it goes to sleep. However when it comes back it goes into the black screen soon enough and most of the time the sleep button doesn't react anymore. One other thing I managed to nailed down is when I used a secondary monitor instead of my laptop one, nothing goes wrong. Hope this helps. Francois -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1489820 Title: kernel 3.19 and frozen screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1489820/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
