Comments on: How to Fix macOS High Sierra Screen Resolution on VirtualBox

By: anon

anon — Tue, 04 Dec 2018 08:42:19 +0000

In reply to Suwon.

thanks dud it’s worked for me after many tries of other solutions,
VBoxManage modifyvm “VM name” –firmware efi
it’s that 🙂

By: Mukhtar Jafari

Mukhtar Jafari — Sat, 10 Feb 2018 01:37:02 +0000

In reply to daVinci. Awesome! Thanks for sharing your feedback.

By: daVinci

daVinci — Fri, 09 Feb 2018 20:39:44 +0000

Guys, if you have an issue with the following command:

VBoxManage setextradata “macOS 10.13 High Sierra” “VBoxInternal2/EfiGraphicsResolution” 1920×1080

Then check twice if the “x” at 1920×1080 is really an x… Sometimes copy and paste out of the browser creates a symbol which only looks like x… for example × not x

By: Garry

Garry — Fri, 02 Feb 2018 15:16:35 +0000

In reply to Derek. Thanks a lot! Now works, at last.

By: Steffen

Steffen — Sun, 31 Dec 2017 11:11:10 +0000

In reply to Steffen. Vres=1080 btw

By: Steffen

Steffen — Sun, 31 Dec 2017 11:10:31 +0000

The following code worked for VB 5.2:
VBoxManage setextradata “Machine Name” VBoxInternal2/EfiHorizontalResolution “1920”
VBoxManage setextradata “Machine Name” VBoxInternal2/EfiVerticalResolution “Vres”

Note: remove the “” from “Machine Name”, if not you get errors saying it can’t fint machine name.

By: Mukhtar Jafari

Mukhtar Jafari — Sat, 30 Dec 2017 15:45:26 +0000

In reply to reggie. Welcome and thank you for sharing your feedback dear Reggie

By: reggie

reggie — Wed, 27 Dec 2017 20:19:00 +0000

In reply to Derek. worked also for me, thanks

By: Mukhtar Jafari

Mukhtar Jafari — Wed, 20 Dec 2017 03:22:37 +0000

In reply to moet.

Here is another guide that we’ve recently published on wikigain
https://www.wikigain.com/fix-virtualbox-macos-high-sierra-screen-resolution-1920×1080-4k-5k/

By: Tomasz

Tomasz — Thu, 14 Dec 2017 13:55:12 +0000

🙁

By: Tomasz

Tomasz — Thu, 14 Dec 2017 13:53:04 +0000

In reply to Tomasz. The working one was: and this low res one was:

By: Tomasz

Tomasz — Thu, 14 Dec 2017 13:50:41 +0000

In reply to Tomasz.

just need to update bacause wordpress has changed special charactes in my post. I will use a “space” before each character now:
The working one was:
and this low res one was:

I changed manualy value=” 1 9 2 0 & # x D 7 ; 1 0 8 0 ”
to value=”1 9 2 0 x 1 0 8 0 “

By: Tomasz

Tomasz — Thu, 14 Dec 2017 13:45:22 +0000

For those who have problems with 5.2 (or maybe not only 5.2):

Yesterday I deleted the wrong version of 10.12 Sierra and had been left with 1024×768. Happy that since I upgraded to VBox 5.2 my macOS magically switched to 1920×1080 itself I just run: VBoxManage setextradata “VM Name” VBoxInternal2/EfiGraphicsResolution 1920×1080… but no luck at all!

Before I decided to downgrade to VBox 5.1 and do all the steps I did before, I found the full version of the working macOS in one of automatic Acronis True Image disk images 🙂 Exactly the one I deleted by mistake yesterday!

To check what the problem was I compared config files (*.vbox ) of both machines.

I found out that there was a slight difference.
The working one was:

and this low res one was:

I changed manualy
value=”1920×1080″
to
value=”1920×1080″
(use notepad++ or any other that recognizes special characters’ codes)

and the second one (low res) is FullHD now!

Be careful when you edit those files! And always make a safe copy before you start!

By: moet

moet — Thu, 14 Dec 2017 00:11:17 +0000

Some advices for those who can’t set higher resolution on VirtualBox 5.2.2:
– if you are running virtualbox on limited windows account (not admin), you should also run normal Command Prompt – without admin rights
– you can use only resolutions supported by VB, listened there: https://www.virtualbox.org/manual/ch03.html#efividmode
– try to change video memory size to 256
VBoxManage modifyvm “yourVMname” –vram 256
– use both mentioned methods:
VBoxManage setextradata “yourVMname” VBoxInternal2/EfiHorizontalResolution 1440
VBoxManage setextradata “yourVMname” VBoxInternal2/EfiVerticalResolution 900
VBoxManage setextradata “yourVMname” VBoxInternal2/EfiGraphicsResolution 1440×900
– to check if you enter all correctly run:
VBoxManage getextradata “yourVMname” enumerate