Hello Jonathan,
Finally I was able to find time to check whether this issue is
reproducible for me.
I had installed fresh Kubuntu 17.04 on my HiDPI laptop (HP Envy with
3840x2160 screen). Then updated everything.
To be sure we have similar setup, fresh after installation I had
scaled host fonts up to 192dpi and Kubuntu icons to be twice larger.
That’s all.
Then I tried VBox with WinXP, Win7 and Win10 guests.
I was not able to reproduce the issue with WinXP or Win10, but I have
something with Win7 (with WDDM driver).
Here with the Win7 guest I am unable to adjust guest-screen up to
host-screen resolution in full-screen mode only, the usual black
margins **around** the guest content (not just to the right and below,
but from each side). I can resize guest-screen in usual (non
full-screen) mode up to maximum (which is less than available area but
quite close to it). Maximized machine-window gets guest-screen
adjusted properly, but full-screen is not. That happens only if Win7
have WDDM driver installed within the Guest Additions package (enable
Direct3D Support check-box during GA installation then answer NO, that
will install WDDM). If XPDM driver is installed (for that do not
enable Direct3D Support check-box during GA installation) I have no
such issue with Win7. Opposing to Win7, Win10 guest goes with WDDM by
default (during GA installation) but I have no any resize issues with
Win10 at all. Guest being resized up to full host-screen resolution
here. I would also note that I have no custom scaling factor set for
VM window (it’s 1.0 by default) so guest resolution in full-screen
mode equal to host-resolution for me. Maximum Guest Screen Size option
from Global VBox Properties set to None.
As I understand that’s not the case you have there, on your host the
situation is much worse. It’s worth creating public VirtualBox defect
and provide us with VBox.log and screenshots/videos of the issue you have.
Thanks in advance!
WBR,
[Oracle/VirtualBox] Sergey Dubov
*From: *Jonathan Pratschke <mailto:[email protected]>
*Sent: *26 октября 2017 г. 1:49
*To: *[email protected]
<mailto:[email protected]>
*Subject: *Re: [VBox-users] Windows VMs do not adapt to high-res screen
Dear Sergey,
sorry for the delay in getting back to you. Setting the environment
variable affects the appearance of the virtualbox manager and causes
the VM to start in an even smaller part of the screen (literally a
stamp-sized box in the middle of the screen). Once fully loaded, it
resizes, but just to original faulty behaviour, with no change from
there on.
Thanks!
J
Il 24/10/2017 01:01, Sergey Dubov ha scritto:
Hello Jonathan,
Could you please check one small thing for me?
There is HiDPI scaling support flag in the underlaying Qt library.
It can be forced by setting environment variable
QT_AUTO_SCREEN_SCALE_FACTORto 1 (right before starting VM).
Please try it and let me know if that affects the issue somehow.
Thanks in advance!
WBR,
[Oracle/VirtualBox] Sergey Dubov
*From: *Jonathan Pratschke <mailto:[email protected]>
*Sent: *23 октября 2017 г. 22:48
*To: *[email protected]
<mailto:[email protected]>
*Subject: *Re: [VBox-users] Windows VMs do not adapt to high-res
screen
Dear Ron,
I have a Linux host, the guests are Windows. But there is clearly
something going wrong which usually gets handled automatically,
presumably due to the combination of new hardware or the new version
17.04 of the host OS KUbuntu.
Thanks,
Jonathan
Il 23/10/2017 18:08, Ron Hunter-Duvar ha scritto:
> With Linux guests, you may need to look at how the X server is
> configured.
>
> Depending on the distro and version, you may need to edit your
> /etc/X11/xorg.conf, /etc/X11/xorg.conf.d/*, or use GUI tools
> (typically "System Settings" in KDE5, can't say for Gnome or others).
>
> xrandr should tell you want X sees as the current and valid settings.
>
> With most modern distros and hardware, this usually all gets handled
> automatically with edid. But I suspect the guest is not getting that
> info from VBox.
>
> Ron
>
>
> On 23/10/17 08:43 AM, Jonathan Pratschke wrote:
>> Dear Michael,
>>
>> I have read the information on this and linked pages and verified
>> that every time the host sends a hint there is a matching entry in
>> the machine log file on the host. The option "automatically resize"
>> is selectable and selected. The correct guest additions are
>> installed. There are no errors in the log file and no indication
that
>> the host window manager refuses requests from the guest. But the host
>> does not appear to understand the screen resolution and the guest is
>> unable to adapt to it. I can set the resolution manually to
>> 1920x1440, but the VM at that stage is larger than the Desktop,
which
>> means that it is mis-recognising the definition of the screen itself
>> (which is actually 2560x1440). And the mouse pointer continues to be
>> wildly out of alignment.
>>
>> Thanks,
>> Jonathan
>>
>>
>>
>> Il 23/10/2017 12:27, Michael Thayer ha scritto:
>>> Hello Both,
>>>
>>> Please take a look at our wiki page about debugging guest resizing
>>> issues[1]. I'm afraid that it is a bit rudimentary just now, and
more
>>> for Linux guests than Windows ones.
>>>
>>> [1] https://www.virtualbox.org/wiki/DynamicResizingDebug
>>>
>>> Regards
>>> Michael
>>>
>>> 21.10.2017 07:40, Patrice Oliver wrote:
>>>> Dear all,
>>>>
>>>> It’s annoying.
>>>> I sait for a vmware player to se if it’s abble to give me the good
>>>> resolution.
>>>> I will tell you the result.
>>>> Will Oracle adjust virtualbox capabilities ?
>>>>
>>>> Regards.
>>>> Patrice.
>>>>
>>>> Le ven. 20 oct. 2017 à 22:13, Jonathan Pratschke
<[email protected] <mailto:[email protected]>
>>>> <mailto:[email protected]> <mailto:[email protected]>> a écrit :
>>>>
>>>> Dear Sergey,
>>>>
>>>> I have upgraded to 5.2, and I can confirm that the problem
>>>> remains,
>>>> in both Win7 and Win10 VMs. In Win7, the desktop maximises
>>>> correctly
>>>> to fill the monitor, and the mouse pointer is correctly
>>>> aligned, but
>>>> the resolution is low (grainy appearance). In Win10, the desktop
>>>> does not fill the monitor (wide black margin remains), it does
>>>> not
>>>> have the correct resolution and the mouse pointer is not
aligned,
>>>> making it impossible to do anything but start and stop the VM.
>>>>
>>>> Thanks,
>>>> Jonathan
>>>>
>>>>
>>>>
>>>> Il 20/10/2017 19:01, Sergey Dubov ha scritto:
>>>>> >Are you to check
>>>>>
>>>>> I mean "Are you **able** to check…”____
>>>>>
>>>>> Sorry for the typo..
>>>>>
>>>>> __ __
>>>>>
>>>>> WBR,
>>>>>
>>>>> [Oracle/VirtualBox] Sergey Dubov
>>>>>
>>>>> __ __
>>>>>
>>>>> *From: *Sergey Dubov <mailto:[email protected]>
<mailto:[email protected]>
>>>>> *Sent: *20 октября 2017 г. 19:59
>>>>> *To: *Community mailing list of VirtualBox users
>>>>> <mailto:[email protected]>
<mailto:[email protected]>
>>>>> *Subject: *Re: [VBox-users] Windows VMs do not adapt to high-res
>>>>> screen
>>>>>
>>>>> __ __
>>>>>
>>>>> Hello Jonathan,____
>>>>>
>>>>> Are you to check whether the same issue is reproducible with the
>>>>> newly released VBox 5.2?____
>>>>>
>>>>> Even if not, it will be easier to analyze it on the basis of
>>>>> that
>>>>> release.____
>>>>>
>>>>> Thanks in advance!____
>>>>>
>>>>> __ __
>>>>>
>>>>> WBR,____
>>>>>
>>>>> [Oracle/VirtualBox] Sergey Dubov____
>>>>>
>>>>> __ __
>>>>>
>>>>> *From: *Jonathan Pratschke <mailto:[email protected]>
<mailto:[email protected]>
>>>>> *Sent: *17 октября 2017 г. 0:21
>>>>> *To: *[email protected]
>>>>> <mailto:[email protected]>
<mailto:[email protected]>
>>>>> *Subject: *Re: [VBox-users] Windows VMs do not adapt to high-res
>>>>> screen____
>>>>>
>>>>> __ __
>>>>>
>>>>> Dear Sergey,
>>>>>
>>>>> this doesn't work either - whatever settings are used in the
>>>>> File
>>>>> - Preferences - Display menu, there is no change. In the
>>>>> meantime
>>>>> I have also tried installing the new release (5.1.30) with
>>>>> appropriate guest additions and extension pack. No change there
>>>>> either.
>>>>>
>>>>> Thanks,
>>>>> J
>>>>>
>>>>>
>>>>> Il 16/10/2017 22:48, Sergey Dubov ha scritto:____
>>>>>
>>>>> Hello guys,____
>>>>>
>>>>> ____
>>>>>
>>>>> What about global VirtualBox display preference called
>>>>> “Maximum Guest Screen Size” – is it affect this bug in any
>>>>> way?____
>>>>>
>>>>> ____
>>>>>
>>>>> WBR,____
>>>>>
>>>>> [Oracle/VirtualBox] Sergey Dubov____
>>>>>
>>>>> __ __
>>>>>
>>>>> __ __
>>>>>
>>>>> __ __
>>>>>
>>>>>
>>>>>
>>>>>
------------------------------------------------------------------------------
>>>>>
>>>>> Check out the vibrant tech community on one of the world's most
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>>>>>
>>>>>
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>>>>>
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>>>>
>>>> --
>>>> __________________________________
>>>>
>>>> Dr. Jonathan Pratschke
>>>> Research Fellow
>>>> Department of Economics and Statistics (DISES)
>>>>
>>>> University of Salerno
>>>> via Giovanni Paolo II, 132
>>>> Fisciano (SA) 84084, Italy
>>>>
>>>> email: [email protected] <mailto:[email protected]>
<mailto:[email protected]> <mailto:[email protected]>
>>>>
>>>> Tel. 089 962284
>>>> Cell. 320 4640577
>>>>
>>>>
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__________________________________
Dr. Jonathan Pratschke
Research Fellow
Department of Economics and Statistics (DISES)
University of Salerno
via Giovanni Paolo II, 132
Fisciano (SA) 84084, Italy
email: [email protected] <mailto:[email protected]>
Tel. 089 962284
Cell. 320 4640577
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email:[email protected] <mailto:[email protected]>
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