JTX1 Caught on Boot

When I turned on my monitor, all sidebar menus were gone, though the windows I had previously left up were still active (one was Terminal). I rebooted, and on startup the TX1 is now caught on:

[8.743995] Freeing alternatives memory: 52k (ffffffc0011ba000 - ffffffc0011c7000)

I’m not quite sure what to do, as I am not looking to reflash the OS right now. I’m running Ubuntu 16.04 and booting off an SSD.

In the past hour, it has done this:

[604.654972] tegradc tegradc.1: blank - normal
[3660.534283] tegradc tegradc.1: unblank

Would you please describe the detailed steps to reproduce the issue you met?
does that happen occasionally or frequently?

Generally, the blank/unblank will happen when screen turn off/on. And desktop will resume if mouse moving or key pressed.