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Text is not readable in a Win10 guest

PostPosted: 25. Dec 2018, 20:21
by Teufelchen
Hi
I use virtual box the first time. I installed Win10 and then the guest extensions. Grafik RAM 256 MB and 2D and 3D enabled. The problem is, that most of the written text is not readable, because of the text is double in big font, black lines and more.

Re: Text is not readable in a Win10 guest

PostPosted: 25. Dec 2018, 20:33
by socratis
I changed the title from "not readable" to something that better describes the situation.

You didn't give us too much information to go on, but if you're on a Mac with HiDPI, you should go to the VirtualBox Preferences » Display » set the Scale Factor to 200%.

Re: Text is not readable in a Win10 guest

PostPosted: 27. Dec 2018, 10:12
by Teufelchen
I tried a lot of scale, but nothing works. In the att., there is the startmenu as an example.

Re: Text is not readable in a Win10 guest

PostPosted: 27. Dec 2018, 10:40
by Teufelchen
It seems, that the video driver in Oracle VM VirtualBox Guest Additions 6.0.0 sucks. After deinstalling, the text ist OK. So I hope for a new working driver.

Re: Text is not readable in a Win10 guest

PostPosted: 27. Dec 2018, 11:27
by socratis
Can you try switching the Graphics controller from the "VBoxSVGA" to the "VBoxVGA" one (no S)? With the VM shutdown of course, that's all the change needed.

If that doesn't work, we need to see a complete VBox.log, from a complete VM run, where the problem occurs:
  • Start the VM from cold-boot (not from a paused or saved state) / Observe problem / 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.

PS: For screenshots, it's better if you use the PNG file type, instead of JPG/GIF/other.

Re: Text is not readable in a Win10 guest

PostPosted: 27. Dec 2018, 18:56
by helgeb
Same effect for me: with 3D unreadable, without unusable slow on MacBook Pro 2018.

Changing the video driver to 'VBoxVGA' (without 'S') works perfect: Not artifacts, readable text, good response time.

So thanks for solving my problem.
Helge

Re: Text is not readable in a Win10 guest

PostPosted: 27. Dec 2018, 19:01
by socratis
Thanks @helgeb for confirming. Unfortunately I can't mark this as [Solved] because it's not your thread, I'd like to wait for the thread's owner.

Funny thing is that my Win10 guests (32- and 64-bit) work just fine with either vGPU option; VBoxVGA or VBoxSVGA. That's where a log comes in handy...

Re: Text is not readable in a Win10 guest

PostPosted: 28. Dec 2018, 09:52
by helgeb
This is what I have done:
  1. Changed my display controller to VBoxSVGA
  2. Started my Windows 10
  3. Logged in (text distortion even on the login panel!)
  4. Opened Start menu (display like screenshot of @teufelchen)
  5. Shut down
Hope the log helps.

Re: Text is not readable in a Win10 guest

PostPosted: 2. Jan 2019, 17:23
by AntonioDL
I experience the very same problem when using the VBoxSVGA. Using VBoxVGA (without S) still show a few artefacts here and there, but is alright.

It seems to affect only Direct3D. Aero stuff (like the Win 10 menus, dedicated apps like Settings) will show it especially as the window refreshes, or mouse hover over, like a screen refresh problem where pixels are not "cleaned". Windows programs like the File Explorer is not affected.

I'm running on macOS Mojave 10.14.2 in a MacBook Pro 15-inch 2018 with the AMD Radeon Pro 560X. Can upload logs/picture/screen recording if needed.

As already reported by other users, disabling 3D in the VM solves it (but the VM response is completely unresponsive).

Re: Text is not readable in a Win10 guest

PostPosted: 15. Jan 2019, 19:14
by helgeb
The problems still occur with VB 6.0.2

Re: Text is not readable in a Win10 guest

PostPosted: 26. Jan 2019, 12:06
by AntonioDL
helgeb wrote:The problems still occur with VB 6.0.2

I can only confirm that. 6.0.2 have not solved the issue. (and before someone asks, I've updated not only the host, but the guest additions as well. I could verify that the Oracle VirtualBox display driver was 6.0.2.0). VBoxVGA is still the only viable choice, at least on macOS hosts.

Re: Text is not readable in a Win10 guest

PostPosted: 29. Apr 2019, 16:20
by AntonioDL
Issue still exists with 6.0.6.

Re: Text is not readable in a Win10 guest

PostPosted: 30. Apr 2019, 04:08
by SirMoony
Hello, I running Windows 10 Guest on

Model: MacBook Pro 2018 15,1
CPU: Intel Core i7 6 X 2.6 GHz
Mem: 16 Go
Video: Radeon Pro 560X 4Go

With VirtualBox Version 6.0.6 r130049 + extension pack 6.0.6

I see the same glitches as the others whenever I select VBoxVGA or VBoxSVGA.
The only thing that make the glitches stop is to uncheck use 3D hardware acceleration.
So I get poor 3D video I guess, is there something I can do?

Christian

Re: Text is not readable in a Win10 guest

PostPosted: 30. Apr 2019, 05:56
by socratis
SirMoony wrote:whenever I select VBoxVGA or VBoxSVGA

I only see the glitches with the VBoxSVGA, the new VirtualBox 6.x option. Are you sure?

Switch to VBoxVGA. We need to see a complete VBox.log, from a complete VM run, where the problem occurs:
  • Start the VM from cold-boot (not from a paused or saved state) / Observe problem / 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.
Image

Re: Text is not readable in a Win10 guest

PostPosted: 1. May 2019, 14:45
by SirMoony
The glitches are not the same or same but there is still glitches occurring in both modes. I've attached two zip files. One for the VBoxVGA mode and the other VBoxSVGA mode. I included the log file and screen shots in each zip files to show you.

Best regards,
Christian