Now from time to time (≈ once a week) when I wake it up, the screen remains black in both X and text console. Nothing can bring it back, but everything else works just fine. No errors in logs either.
I am having the same problem on my Fujitsu T900, 64-bit ArchLinux. Tried both pm-suspend and s2ram, and while s2ram *appeared* to not cause this problem as much, it still happened. At first I thought my screen was entirely blank, but on closer inspection realized my screen was simply very dim--flashing a flashlight at the screen helped a lot. Was able to navigate to my brightness settings, and the brightness was on max, as it was before suspend. I have the testing repo enabled, and everything is up-to-date. I don't know if this problem occurred with older kernel versions on the Fujitsu, as this is a recent install. Sara