windows xp guest stops updated screen after switching from scaled to default

[Jay Howard]

Host OS: OS X 10.6.8 Hardware: MacBook Pro6,2 (Intel HD Graphics + Nvidia GeForce GT 330M) Guest OS: Windows XP SP3 2D and 3D acceleration both enabled

When I start up in "default" mode (i.e. Windows XP is shown in a non-full-screen window without any scaling) I can press "Apple-C" to switch to scale mode. This is successful and everything works as expected in scale mode. However, if I hit "Apple-C" again to switch back to default mode, I lose all screen output in the Guest OS Window. It still accepts keyboard and mouse *input*, but the screen isn't updated to reflect the affects of that input. Switching to a different application in OS X (that covers up the Virtual Box window) and then switching back to the VirtualBox window will cause the screen updates to be displayed.

[Jay Howard]

VBox.log

[Danial]

Host type can be changed to all, this issue affects Windows XP guests on Windows 7 host as well

[fmDevMan]

OSX 10.6.8, hosting WinXP, no 3D acceleration

Behavior occurs most notably coming out of scaled mode.

On OSX, notice that if I bring up the Dashboard and click back and forth between the guest window, the window will update and so it's possible to navigate to a proper guest shutdown. You must exit the host process to escape the problem altogether as a simple restart of guest is not sufficient.