id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
16991,Virtual box stuck trying to auto-resize after boot -> no longer reproducible,zaxter,,"I have been using VirtualBox for quite some time now - Ubuntu 16.04 guest on OSX 10.12.4 host. It was all working fine until today.
VirtualBox starts to boot Ubuntu 16.04, shows initial boot logs, then Ubuntu logo with progress, and then tries to change its (app window) size. The window goes all black and it keeps maximizing-minimizing (just a little, not fullscreen) indefinitely.
I haven't changed anything in the settings today. I tried enabling/disabling `2D acceleration` and `Unscaled HiDPI video output`, but nothing worked.
I was using an older version, so I even updated to 5.1.26 today to see if that works, but it didn't.
PFA logs.

Thank you.",defect,closed,other,VirtualBox 5.1.26,invalid,,,Linux,Mac OS X