#5655 closed defect (fixed)

Full-screen guest applications corrupt host screen when VM is in seamless mode => fixed in SVN

Reported by:	Technologov	Owned by:
Component:	GUI/seamless	Version:	VirtualBox 3.1.0
Keywords:		Cc:
Guest type:	Windows	Host type:	other

Description (last modified by Frank Mehnert)

Host1: RHEL 5.3/x64, Core 2 P8600, VBox 3.1.0.

Host2: Windows Vista, 32-bit, Core 2 P8600, VBox 3.1.0.

Guest: Windows XP

When a Windows VM is in seamless mode, and some application enters full-screen mode in VM, it starts rendering garbage on host's screen. After an app exists, seamless mode restores.

Expected behavior: VM must exit seamless mode, when any application asks Full-Screen. VM must become windowed application.

-Technologov, 03.12.2009.

Attachments (1)

Windows XP Full 3D-2009-12-03-12-58-25.log (46.9 KB ) - added by Technologov 15 years ago.

Download all attachments as: .zip

Change History (12)

by Technologov, 15 years ago

Attachment:	Windows XP Full 3D-2009-12-03-12-58-25.log added

comment:1 by Technologov, 15 years ago

Examples: "Heroes of Might and Magic III" and "TuxRacer"

comment:2 by Technologov, 15 years ago

Another example: Windows 7, which asks to close applications.

See: http://forums.virtualbox.org/viewtopic.php?f=1&t=25311&p=113860#p113860

-Technologov

follow-up: 4 comment:3 by Technologov, 15 years ago

Can you please take a look at it ?

in reply to: 3 comment:4 by misha, 15 years ago

Replying to Technologov: I've reproduced the problem, it is reproducible with 3.0.x as well. We'll have a look into this.

follow-ups: 6 7 comment:5 by Technologov, 15 years ago

More info: (XP guest)

The problem is not with Full-screen applications per-se, but with their behavior to change guest's resolution.

Try those in seamless mode:

Example1: (Works) Internet Explorer 6, press F11 (enters full-screen). This Works perfectly, because guest resolution was not changed.

Example2: (Broken) Control Panel->Display->Change resolution. This renders garbage on host's screen.

Basically we need to detect any app in the guest that tries to change guest's resolution to become different than seamless mode, and switch VM to windowed mode automatically in this case.

This problem also exists with Linux guests.

-Technologov

in reply to: 5 comment:6 by misha, 15 years ago

Replying to Technologov: That's right. That's what we've discovered here as well. We have a fix already. I should be able to provide you a test build the next week.

in reply to: 5 comment:7 by misha, 15 years ago

Summary:	Full-screen guest applications corrupt host screen when VM is in seamless mode → Full-screen guest applications corrupt host screen when VM is in seamless mode => fixed in SVN

Replying to Technologov: We've fixed the issue. The fix should be included in the next release.
Please post me an email at mikhail dot sennikovsky at sun dot com if you're willing to try a test version with the fix, I'll then post you a link to the test version.