1534089 - Wrong Popup Menu position under Wayland

Status: RESOLVED DUPLICATE of bug 1543035

(Core :: Widget: Gtk, defect)

Description

[plumerlis]

Attachment: 选区_728.png

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:65.0) Gecko/20100101 Firefox/65.0

Steps to reproduce:

1 Enable Gnome Shell fractional scaling and set it to 150%(or 125%), and maybe also need a large display.
2 Launch Firefox with Wayland backend
3 Maximum Firefox's window
4 Try to click Firefox Menu and see the position where menu pop up
5 Try to right click at the right side of the page and see the position where menu pop up

Actual results:

The pop up menu seems limited in a left side area and will never appear to the right side

Expected results:

Pop up menu(Right click menu) should be following the mouse pointer

Comment 1

[plumerlis]

Attachment: 选区_729.png

Right clicked

Comment 2

[Jan Alexander Steffens [:heftig]]

I can confirm this.

Nightly on Wayland, GNOME 3.32, two 3840x2160 screens at 150% scale (so the client scale is 2x).

Popups from right-clicks or toolbar buttons behave poorly:

• Popups are limited to an area of a quarter of a screen, attached to the top left corner of the window; they behave as if this is the screen bound.

• Popups ignore the actual screen bounds; they can place themselves partially outside the desktop or be split by the edge between two screens.

Comment 3

[Jan Vlug]

I confirm this behaviour. What I also observe is that the popup window becomes sometimes smaller and smaller if I right click several times at different places in the same page. Usually I have to right click about ten times. I also right click to make the popup disappear. Sometimes the popup window is barely more that the scroll up and scroll down arrows.

Comment 4

[Jan Vlug]

Attachment: Too small popup window

I added a screenshot with a too small popup window.

Comment 5

[Jan Alexander Steffens [:heftig]]

(In reply to Jan Alexander Steffens [:heftig] from comment #2)

• Popups are limited to an area of a quarter of a screen

To trigger this, GNOME Shell must have the "scale-monitor-framebuffer" feature enabled and the scale must be greater than 1.

Comment 6

[Jan Alexander Steffens [:heftig]]

It appears this is caused by Mutter/GDK reporting bogus values for the monitor sizes. The GdkMonitor for 3840x2160@2 has a size of just 960x540.

Hacking mutter to report the unscaled size independent of the layout mode seems to fix popups being limited to a quarter of the screen, but not the other issues.

Comment 7

[Martin Stránský [:stransky] (ni? me)]

Let's track it at Bug 1543035