[Resolved] VirtualBox manager screen scaled/low res?

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[Resolved] VirtualBox manager screen scaled/low res?

Postby YoungJules » 24. Aug 2019, 00:43

Have VirtualBox v6.0.10.r132072 (Qt5.9.5) on Ubuntu 18.04

The manager screen is too big, looks like it's in a really low resolution. All other applications are ok. When I go to make a new VM, the Next button is not visible.

Have tried uninstalling and re-installing but doesn't make any difference.

I have a feeling I tweaked something at some point because one of my VMs was unreadable due to having really tiny text, but I can't for the life of me remember what...

Thanks for any help or suggestions... Google has a hard job distinguishing my search from those of someone wanting to change Guest resolutions but my problem is the resolution or scaling of the actual VirtualBox manager screen.

Thanks!
Last edited by socratis on 28. Aug 2019, 07:55, edited 1 time in total.
Reason: Marked as [Resolved].
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Re: VirtualBox manager screen scaled/low res?

Postby socratis » 24. Aug 2019, 19:44

Can you post a screenshot so that we know what we're talking about? We don't need to see your whole desktop, just the area of interest. Also, if you're using a HiDPI setup, please shrink the image by at least 50%. And use the "Preview" to make sure that your image looks alright and it's legible.
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Re: VirtualBox manager screen scaled/low res?

Postby YoungJules » 24. Aug 2019, 23:09

Thanks for the reply. Here are the requested screenshots...

Main manager screen
Screenshot from 2019-08-24 22-57-21.png
Main manager screen
Screenshot from 2019-08-24 22-57-21.png (121.2 KiB) Viewed 131 times

Make new VM
Screenshot from 2019-08-24 23-03-06.png
Make new VM
Screenshot from 2019-08-24 23-03-06.png (104.83 KiB) Viewed 131 times
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Re: VirtualBox manager screen scaled/low res?

Postby fth0 » 25. Aug 2019, 00:56

YoungJules wrote:Google has a hard job distinguishing my search from those of someone wanting to change Guest resolutions

Just in case you don't get the answer you need in this forum: I searched Google with 'linux scale application window' and got a lot of results matching your problem description ...
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Re: VirtualBox manager screen scaled/low res?

Postby socratis » 25. Aug 2019, 19:20

YoungJules wrote:Have tried uninstalling and re-installing but doesn't make any difference.

Can you try the Test Builds, or the All Distributions (for 6.0.10)? They both include embedded the Qt libraries, and don't depend on the system-installed Qt ones. BTW, what's the Qt version that you're using? It's recorded in the "About" dialog.

On a more personal note, do you really think that this is "too big"? It looks just fine to me, very similar to what I'm seeing on all my hosts, including a Mint19. I'm not on HiDPI though...
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Re: VirtualBox manager screen scaled/low res?

Postby fth0 » 26. Aug 2019, 02:31

socratis wrote:On a more personal note, do you really think that this is "too big"?

If it's not "too big", then the font size in the window title line above is probably "too small". ;)
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Re: VirtualBox manager screen scaled/low res?

Postby YoungJules » 27. Aug 2019, 12:06

It's too big if I can't see the buttons. The screen shot is all I see.

And to the person who said the text in the title is too small, well of course I had to scale down the images to post them up here. So the 'small' stuff around VirtualBox is normal and perfectly readable...if the screenshot were at 100%. It's all scaled down to 35%...
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Re: VirtualBox manager screen scaled/low res?

Postby YoungJules » 27. Aug 2019, 12:11

Found it... in my .profile I have (errmmm HAD... :lol: )

export QT_SCALE_FACTOR=2
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Re: VirtualBox manager screen scaled/low res?

Postby fth0 » 28. Aug 2019, 01:33

YoungJules wrote:And to the person who said the text in the title is too small

I didn't say that. socratis question does make sense from the point of view of people who need larger fonts because of degrading eye sight. Reread my answer to that statement again. ;)
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Re: VirtualBox manager screen scaled/low res?

Postby socratis » 28. Aug 2019, 07:55

YoungJules wrote:Found it... export QT_SCALE_FACTOR=2

I should have thought about it. :?

In my notes I have the following as a snippet:
export QT_AUTO_SCREEN_SCALE_FACTOR= QT_SCREEN_SCALE_FACTORS= QT_SCALE_FACTOR=

Marking as [Resolved].
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
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