Sidebar: is that the right strace binary?
It doesn't appear to be decoding the MXCFB_SEND_UPDATES ioctl properly (that's supposed to be the _IOC(_IOC_WRITE, 0x46, 0x2e, ...) stuff), which is weird, since I could have sworn someone used it to send me nightmode dumps at one point...
(Might have been from a Zelda, though).
Remind me to do a fresh build to double-check

.
EDIT: Done, links updated above.