*How much testing have you done to try to narrow down which component is at issue? * video card driver * X server * window management and/or desktop environment * VirtualBox application * guest
While i haven't thought through all details of isolating which component, here are some thoughts on a start: * do you have any different hardware with which to test? * test with GNOME, KDE, FVWM, and maybe other. * is there any other native virtualization utility with seamless mode feature, that can be compared to VirtualBox? * test with different guest OS & guest applications. Another thought, you might cross-post this question on LUG*IE, which had a presentation on VirtualBox early this year: **http://rd-foerster.com/LUGIE/jan2010.htm* <http://rd-foerster.com/LUGIE/jan2010.htm>* HtH / Randall* Thank you. I checked more. My first setup was a laptop with intel graphics, and running Linux Mint LXDE, then virtualbox 3.16 and Win 7 as guest. I set up on another machine, with an ATI video card, Ubuntu (GNOME). I first tried virtualbox 3.16 running a Win 7 client and VMware (don't know the version) running Win XP. It wouldn't do extended display for the guest with the open source graphics drivers, so I configured Ubuntu to use the binary drivers. After that, VMware worked, but VirtualBox didn't. I manually added the repositories, and got the latest version of VBox. After that it would configure an additional virtual monitor for Vbox. This worked in windowed or fullscreen mode, but seamless mode would crash it. This is a test machine, somewhat older dual Xeon processors, and only 2GB ram. I'm ready to get a very modern machine with 6 GB ram or more and IOMMU so that should play nicer. Given that the AMD platform I'm looking at only supports Crossfire, not SLI, I'll probably go for ATI discrete graphics. Your suggestions helped a lot, Randall -- Christopher Craig Craig Digital Systems, Owner Kiwanis Director and Division Newsletter Editor 951. 522.9323
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