Ticket #6502 (closed defect: fixed)

Opened 4 years ago

Last modified 3 years ago

Some WPF apps switch the desktop to 640x480

Reported by: wRAR Owned by:
Priority: major Component: guest additions
Version: VirtualBox 3.1.6 Keywords:
Cc: Guest type: Windows
Host type: Linux


Some .NET applications (such as Help Library Manager from VS2010 and the HgSccPackage commit dialog) automatically switch the guest desktop to 640x480. The original resolution is restored when the window is closed (the commit dialog apparently isn't destroyed when closed, so Visual Studio should be closed to restore the resolution). This happens only on the first launch in a session. These applications use WPF, but I can't say anything more specific about them, and most other WPF apps don't cause such behavior.

The log contains several lines such as

Display::handleDisplayResize(): uScreenId = 0, pvVRAM=b1659000 w=640 h=480 bpp=16 cbLine=0x500

Change History

comment:1 Changed 4 years ago by Technologov

But does it happen when running on real Windows OS ? (without VirtualBox)


comment:2 Changed 4 years ago by wRAR

Of course no.

comment:3 Changed 3 years ago by Technologov

If it works the same on real hardware and on VirtualBox, then I don't see why this behavior is wrong.

I don't see the bug.


comment:4 Changed 3 years ago by wRAR

I didn't say that in the real hardware the behavior is the same, I've said the opposite. Anyway, this bug no longer happens for me in the current VBox.

comment:5 Changed 3 years ago by frank

  • Status changed from new to closed
  • Resolution set to fixed

Thanks for the feedback!

Note: See TracTickets for help on using tickets.
ContactPrivacy policyTerms of Use