VirtualBox

Windows 7 guest online resizes downwards

• Problem: Even with the guest tools installed and "View | Auto-resize Guest Display" ticked, Windows 7 only resizes downwards and does not resize to 1440p (or larger) fullscreen.
• Solution: In the Display tab of the machine's settings, increase the video memory from 48MB to 128MB.

PowerPoint slides have glitches

• Problem: PowerPoint shows weird UI glitches such as a slide moving a bit uup and down, left and right when clickin g otn it (in an oscillating manner).
• Solution: In the Display tab of the machine's settings, uncheck Enable 3D Acceleration.

Guest crashes abruptly

• Problem: While running PowerPoint on a Windows 7 guest (starting to see a pattern here?), the virtual machine crashed repeatedly when using the clipboard. There was no trace of the crash in the VirtualBox logs and journalctl was also very brief:

  $ journalctl -xe | grep Virtualbox
  [...] audit[74104]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=74104 comm="SHCLX11" exe="/usr/lib/virtualbox/VirtualBoxVM" sig=6 res=1

• Solution: Disable the shared clipboard until this issue is fixed.