Windows Guest: Resolution falls back to 600x480 when changing user the second time

[ceugster]

Hi, I don't know, if it is a problem of virtual box or of Windows: When I start Windows Guest System (Windows 7) on my MacOS X Host everything is ok. I login as normal user. Then I change user (to Administrator), work a little and then go back to the first user. Every thing is ok. Now, when I change the second time to the second user, the screen resolution of the guest changes to 600x480 and the maximum colors to the minimum possible. After that, I have to restart the guest to get back the original settings. Does anybody have a similar behavior? Virtualbox 5.2.18.
Christian

[socratis]

work a little

Doing what? I suspect that one of the programs you're using as User2 might be causing this. Have you installed the GAs? We're going to need to see a VM log from a complete VM run:

• Start the VM from cold-boot (not from a paused or saved state) / Observe error / Shutdown the VM (force close it if you have to).
• With the VM completely shut down (not paused or saved), right-click on the VM in the VirtualBox Manager and select "Show Log".
• Save only the first "VBox.log", ZIP it and attach it to your response. See the "Upload attachment" tab below the reply form.

[ceugster]

Hi, as attachment, I send the log file. Thank you!

[socratis]

00:00:03.935373 SharedFolders host service: Adding host mapping
00:00:03.935395     Host path '/Users/brigitte/Downloads', map name 'BrigittesDownloads', writable, automount=true, create_symlinks=false, missing=false
00:00:03.935715 SharedFolders host service: Adding host mapping
00:00:03.935727     Host path '/Users/christian/Downloads', map name 'Downloads', writable, automount=true, create_symlinks=false, missing=false

How exactly are you sharing the folders from two different users? You're not supposed to have access to '/Users/brigitte/Downloads'. How do you explain that?

00:00:15.709379 VMMDev: Guest Additions information report: Version 5.2.8 r121009 '5.2.8'

Your Guest Additions are outdated. You need to update them.

Finally, you didn't answer my original question; what exactly do you do when you log in as Administrator?