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Using Virtualbox 4.2.10 with Windows 7 as host and guest.
If I press Ctrl+F, the OS goes full screen. If I check the resolution, it says 1680×1050 -- same size as my host OS that has many (approximately 20) other options, including MUCH bigger resolutions.
Now if I press Ctrl+F again (I want it to just fill the available window), it goes back down to 1024×732.
If I shrink the window, the resolution DOES scale down, BUT will not scale back up when I resize the window again. When I check the resolution after resizing it down, it's at 640×480 (no other options available).
Here is a video describing the problem.
Could someone please help me fix this odd problem?
Configuration:
Host
- Windows 7
- 16 GB RAM
- 2 Nvidia 680's (factory overclock) on SLI (4GB for each video card)
- CPU virtualization turned on
Guest
- Windows 7
- 4 GB RAM
- Guest tools installed
the video links are dead – Tim Abell – 2016-05-27T14:27:52.280
What happens if you disable or take out one of the Nvidia cards? How many monitors ? Are you trying to use multiple monitors (if yes, what does "full screen" mean) ? – harrymc – 2013-04-17T07:36:52.530
"Full Screen" to fill the entire screen? No box, no border, goes over my task bar. I can't remove my video cards, I don't have on board video. I'm only running 1 monitor currently. – Josh – 2013-04-17T14:00:23.480
Would it help if I took a screen capture video of what's going on? – Josh – 2013-04-17T14:02:21.017
It would certainly not hurt. – harrymc – 2013-04-17T14:21:29.037
I added the video into the body (last line) – Josh – 2013-04-17T15:49:22.680
I think I noticed that the display adapter in the VM is a generic. With guest tools you should have other options, so try changing it to some other supported and more sophisticated make. – harrymc – 2013-04-17T16:56:32.603
Says generic for VirtualBox (no other options...) Maybe I need to update my guest OS? – Josh – 2013-04-17T17:10:33.943
The video was very low resolution, so hard to read. But I think you should update everything you can and define a better virtual display adapter. – harrymc – 2013-04-17T17:12:40.290
Sorry about the resolution, I had to compress it down because the file was over 1 GB, now it's like 2 MB, I will try and update my guest OS Windows 7 (It has like 200 pending updates). Once that is done I will try and reinstall guest tools, restart and see if I get a different result. I will update as soon as possible.... – Josh – 2013-04-17T17:24:32.563
Upgrade to VirtualBox 4.2.12 and install the WDDM video driver and ensure it is used. Search also for WDDM in here for possible problems. If WDDM does not work, see Guest Additions for Windows that says "For the basic Direct3D acceleration to work in a Windows Guest, you have to install the Guest Additions in Safe Mode". Use absolutely a non-generic video adapter. Fully patch Windows including optional updates.
– harrymc – 2013-04-17T18:50:44.517I have updated to 4.2.12, installed all updates, and I'm still having the same problem.... – Josh – 2013-04-17T21:18:14.990
Which display adapter in the guest? Also a video of a better quality, please, where the text is readable. – harrymc – 2013-04-18T07:25:37.470
Added an HD version of the video. – Josh – 2013-04-18T16:49:06.117
I can now see that you have the VirtualBox Graphics Adapter, but your monitor is not recognized. You don't show the Windows Update optional updates - device drivers are usually optional, so better install them all and keep rebooting and updating as long as more updates exist. After you do that, right-click the guest screen / Screen Resolution / Advanced settings and post screenshots of the Adapter and Monitor tabs. In the Monitor tab, set Colors to the highest possible setting and OK. – harrymc – 2013-04-18T17:21:09.113
Here are the images you asked for: Other Images 1 Other Images 2 Other Images 3
– Josh – 2013-04-18T18:23:23.167Still that generic monitor. Try this advice of using
– harrymc – 2013-04-18T19:52:34.037VBoxManage setextradata global GUI/MaxGuestResolution any
. If it doesn't work, boot the guest in Safe mode, uninstall guest tools, reboot in Safe mode, reinstall guest tools, reboot normally. As a last effort (and my last advice), you might download the guest tools iso and repeat with it.@harrymc Woot! VBoxManage setextradata global GUI/MaxGuestResolution any fixed the problem! please post that as the solution so I can award you the points! It will now resize just fine (up and down) as I adjust the window size. – Josh – 2013-04-18T22:35:57.360
Done - answer posted. Have fun. – harrymc – 2013-04-19T16:33:44.680