I’d been running Windows 10 on VirtualBox on Mac for a month without problems (I had Guest Additions enabled, used it in full screen (host 1280 × 800; the guest was 800 height × <1280)), but then I accidentally tapped ⌘C and the full screen bumped down to 800 × 600. When I tried to go back to full screen, the guest remains 800 × 600 at the center of the screen with letterbox on all sides).
How do I restore the guest to an unscaled 800 height? Ideally, I’d also like the guest width to finally increase to 1280 to match the host. Thank you!
Accidentally resized guest screen will not re-enlarge
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Re: Accidentally resized guest screen will not re-enlarge
The red and the blue highlighted statements are conflicting. If your guest was full screen, then the resolution would be 1280x800, just like your host, not something smaller. Can you explain the situation/setup?LL wrote:full screen (host 1280 × 800; the guest was 800 height × <1280)
Also, did you try the View menu? Host+C is for scaled mode. Did you check to see if it not enabled? Did you try to switch the resolution from within Windows?
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Re: Accidentally resized guest screen will not re-enlarge
Thank you! We’re already ≥halfway there:
- I could’ve sworn I’d tried before, but this time I was able to increase the guest resolution—from within Windows—back up to 1024 × 768 from 800 × 600
- my guest display is still surrounded by letterbox, but the stripes at the top and bottom are reasonable at 16px each ((800 − 768) ÷ 2)
- the letterbox stripes on left and right are less reasonable at 128px wide each ((1280 − 1024) ÷ 2)
- These left‑ and right‑side black stripes are the source of the discrepancy you noted
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Re: Accidentally resized guest screen will not re-enlarge
You are NOT running full screen then, you're running the VM maximized. To enter full screen mode press Host+F.
Another piece of advice would be to change the Host key to something other than the Left-Cmd. It's very common on OSX and just wanting to press Cmd-C (for "copy") you're thrown into scale mode. Not what you intended. I have mine set as the Rgt-Opt, which I rarely use. VirtualBox Manager » Preferences » Input » Virtual Machine » Host Key Combination.
Another piece of advice would be to change the Host key to something other than the Left-Cmd. It's very common on OSX and just wanting to press Cmd-C (for "copy") you're thrown into scale mode. Not what you intended. I have mine set as the Rgt-Opt, which I rarely use. VirtualBox Manager » Preferences » Input » Virtual Machine » Host Key Combination.
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Re: Accidentally resized guest screen will not re-enlarge
I’m pretty sure that I am in Full-screen Mode. My screenshot’s 1280 px wide but the guest display’s active Windows content will only go to 1024 px, which leaves black stripes on the left and right sides of the screen.
Thank you!
To be clear, you helped me fix my initial problem; I’m now onto the luxury problem, which is that my guest display’s highest resolution offering is 1024 × 768, but I wish it were 1280 × 800, just like my host.Thank you!
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Re: Accidentally resized guest screen will not re-enlarge
mpack recently wrote:Usually the display size you're stuck in is the highest possible 4:3 ratio, because VirtualBox and the Window guest have gotten tied into a knot telling/asking each other only about 4:3 ratio options, because that's the size of your default virtual monitor (your actual monitor of course isn't relevant to the VM). If you shut down all VMs, then in the UI go to File|Preferences|Display and set MaxGuestDisplaySize to "None" then you should be able to select any display size you like in any VM.
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Re: Accidentally resized guest screen will not re-enlarge
My god, this is the best day of my life. In terms of VMs. It worked—thank you!!!
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Re: Accidentally resized guest screen will not re-enlarge
Thank mpack for putting the instructions in a how-can-I-help-you, n00b-style, paragraph
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