VirtualBox

Opened 6 years ago

Last modified 23 months ago

#17345 new defect

Display showing at 1/4 size, mouse input area normal (Windows host / Linux guest)

Reported by: mizzao Owned by:
Component: 3D support Version: VirtualBox 5.2.0
Keywords: hidpi display scaling Cc:
Guest type: Linux Host type: Windows

Description

The guest displays over 1/2 x 1/2 (a quarter) of the top left of the total screen area, while the mouse responds over the whole area. If I want to click the system menu in the top right of the screen, for example, I have to click at the top right of the black space, and the menu responds as shown.

This is definitely a HiDPI issue. As you can also see in the picture, the title bar is half the size it should be, the menu bar is twice the size it should be (like the scaling was applied twice), and the icons at the bottom are also twice as large. Scaling is at 200%, so I think the title bar is at 100% and the title bar is at 400%. However, some of this is probably confounded with having a HiDPI and a normal screen on different monitors.

Changing resolution on the guest or scaling on the host doesn't fix the problem; it makes the overall window change as expected but the visible area is still a quarter of the size.

Disabling 3D acceleration fixes the issue, but it just makes everything a whole lot laggier to use as compositing is not available.

I ran into this issue after updating from 5.1.22. Several versions I tried from 5.1.24 to 5.2.2 have the same problem, so I think some change in 5.1.24 broke it.

Related thread: https://forums.virtualbox.org/viewtopic.php?f=6&t=83223 . In that thread someone with an Ubuntu host / Win 8 guest claims to have the same problem.

Attachments (1)

vbox-resized.png (122.9 KB ) - added by mizzao 6 years ago.

Download all attachments as: .zip

Change History (5)

by mizzao, 6 years ago

Attachment: vbox-resized.png added

comment:1 by mizzao, 6 years ago

https://www.virtualbox.org/attachment/ticket/17345/vbox-resized.png

comment:2 by mizzao, 6 years ago

https://www.virtualbox.org/attachment/ticket/17345/vbox-resized.png

comment:3 by mizzao, 6 years ago

https://www.virtualbox.org/raw-attachment/ticket/17345/vbox-resized.png

comment:4 by IMDJ, 23 months ago

This behave still there, my difference was after upgrade from 6.1.30 to 6.1.32/34/34a my screen looks like full but just was showing 1/4 of the full screen (top left corner). (Every time had to rollback to 6.1.30).

Guess this behave is because I've connected external monitor of the laptop, I've set the 2 monitors on Display settings, and it seems is showing back the full screen (6.1.34a).

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