Video Resolution VM Windows10

Discussions about using Windows guests in VirtualBox.

Video Resolution VM Windows10

Postby ricardoclaus » 4. Nov 2017, 14:52

Dear,
I'm using VirtualBox 5.2 on Linux Mint. I Virtualize Windows10.
However, my difficulty is to leave the VM in full screen mode.
Even installing guest addons, the resolution does not stay full screen.
Does anyone know how to solve it?
Attachment, the log of my VM.
Thank you
Attachments
VBox.log.zip
(29.41 KiB) Downloaded 5 times
ricardoclaus
 
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Re: Video Resolution VM Windows10

Postby Perryg » 4. Nov 2017, 15:35

Logs show a happy camper as far as VirtualBox and the Linux host is concerned. Moving to Windows guests.

Be prepared to explain your issue in more detail so the Windows folks can figure out exactly what you are having issues with.
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Re: Video Resolution VM Windows10

Postby mpack » 4. Nov 2017, 18:05

I would like an explanation of what "stay full screen" means. Do you mean that it won't switch to full screen mode? Or that it does switch but then switches back by itself? (a problem which I've never heard of).

I'm finding no indication in the log that any display size higher than 1024x768x24bpp was ever selected. Btw I assume that 24bpp is a mistake: modern PCs usually use 32bpp, and if that's what the host uses then you'll have problems using accelerated graphics with a 24bpp guest.
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Re: Video Resolution VM Windows10

Postby mpack » 4. Nov 2017, 18:16

Belay that, I do see a later change to 1024x768x32bpp. Do make sure to only use 32bpp settings.

However, I also see this :-
VBox.log wrote:00:00:08.402580 VMMDev: Guest Log: VBoxMP::vboxWddmVModesAdd: WARNING! :resolution 1152x864 not accepted by the frontend
00:00:08.402676 VMMDev: Guest Log: VBoxMP::vboxWddmVModesAdd: WARNING! :resolution 1280x960 not accepted by the frontend
00:00:08.402772 VMMDev: Guest Log: VBoxMP::vboxWddmVModesAdd: WARNING! :resolution 1280x1024 not accepted by the frontend
00:00:08.402935 VMMDev: Guest Log: VBoxMP::vboxWddmVModesAdd: WARNING! :resolution 1400x1050 not accepted by the frontend
00:00:08.403029 VMMDev: Guest Log: VBoxMP::vboxWddmVModesAdd: WARNING! :resolution 1600x1200 not accepted by the frontend
00:00:08.403112 VMMDev: Guest Log: VBoxMP::vboxWddmVModesAdd: WARNING! :resolution 1920x1440 not accepted by the frontend
00:00:08.403221 VMMDev: Guest Log: VBoxMP::voxWddmVModesInitForTarget: WARNING! :vps(0x57)!=NO_ERROR
00:00:08.403298 VMMDev: Guest Log: VBoxMP::voxWddmVModesInitForTarget: WARNING! :vps(0x57)!=NO_ERROR
00:00:08.408711 VMMDev: Guest Log: VBoxMP::DxgkDdiQueryAdapterInfo: DXGKQAITYPE_QUERYSEGMENT3 treating as unsupported!
00:00:08.462110 VBVA: InfoScreen: [0] @0,0 1024x768, line 0x1000, BPP 32, flags 0x1
00:00:08.462237 Display::handleDisplayResize: uScreenId=0 pvVRAM=00007fbadc000000 w=1024 h=768 bpp=32 cbLine=0x1000 flags=0x1

I've seen several reports of this "resolution xxx not accepted by frontend" problem, and still have not bottomed it out. I SUSPECT it may be related to the old problem whereby the guest is expecting 4:3 aspect ratios and is rejecting 16:9 etc (or vice versa), but I really don't know yet. I would try different settings for the UI preference File|Preferences|Display|Max Guest Screen Size, i.e. try setting it to Automatic or None. Don't bother with Hint.
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Re: Video Resolution VM Windows10

Postby ricardoclaus » 5. Nov 2017, 13:29

Dear Mpack
I need to run the VM in full screen, ie use the screen resolution that my notebook is using (widescreen). However, within the Windows10 VM, the maximum resolution is 1024x768. The screen is not widescreen full, when I press control + f.
The resolution of my notebook is 1366x768.

Where do I change from 32bpp to 24bpp?

In Virtualbox, preference / screen, I tried to leave it in automatic, but it did not solve the problem.
Another curious fact, I was in the VM drivers manager, excludes the virtualbox video driver. The surprise was that after deleting the driver, I can select other video resolutions, even at 1600x1200.
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Re: Video Resolution VM Windows10

Postby ricardoclaus » 8. Nov 2017, 13:04

Hello everyone,

Would anyone have any more tips to get me through?
In my tests, I deactivated the 3D acceleration of the video card. even then the problem still persists.
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Re: Video Resolution VM Windows10

Postby mpack » 8. Nov 2017, 14:44

Try downloading the updated GAs ISO from the downloads area. It only claims to fix some Linux guest problems, but I guess it would do no harm to try it.
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Re: Video Resolution VM Windows10

Postby ricardoclaus » 8. Nov 2017, 22:49

Dear Mpack
I downloaded ISO Guest VBoxGuestAdditions_5.2.1-118918.iso.
I uninstalled the previous one and installed again.
Without success, the problem still persists.
I am attaching a new log.
Thanks for the help.
Attachments
VBox.log.zip
(26.76 KiB) Downloaded 1 time
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