Hello, lovely X11 people:
This has got to be an FAQ, but I've been unable to find something in the
FAQ or list archives.
I am using XQuartz 1.18.4 (installed via MacPorts xorg-server 1.18.4_1).
I have a Mac OS X 10.10.5 laptop, with multiple displays:
* Main laptop screen is Retina "built-in display", 15.4-inch, with
2880x1800 resolution.
* I have the Built-in Display resolution to "default", a medium
setting between lots of windows with tiny text, and fewer windows
with larger text.
* External display is a SyncMaster Display, 24-inch, with 1920x1200
resolution.
* Display "Arrangement" is with the Built-in display below, holding
the primary menu bar, and the external monitor above it, with the
left edges aligned.
* The external SyncMaster display looks larger: both physically, and
in Display Preferences.
* The "Displays have separate Spaces" box in System Preferences --
Mission Control is UNchecked.
When I run the X server (double-click Applications/MacPorts/X11.app)
then run an X application "freeciv-gtk", the X display surface is a
rectangle which is the union of both displays. It includes some area to
the right of the Built-in Display and below the SyncMaster Display which
is not on either display. I can move X-client windows into this area
and they disappear. This is all on localhost, by the way.
My problem is app menus pulling down off the bottom of the SyncMaster
display. The X application "freeciv-gtk" has pop-up menus at the bottom
of its windows. When I position the app's window on the SyncMaster
display, and click to open the menus, they fall off the bottom of the
SyncMaster Display and into the Built-in Display below. There is a menu
bar at the top of the Built-in Display. Both the menu bar and the
physical gap between the displays makes the menus crossing this boundary
hard to use.
I believe that if the X app thinks its window is near the bottom of the
X display, these menus will pop upwards instead of downwards. That would
be good for me.
I would like to configure X11 on my Mac some way so that these menus
stay within the same physical display as the app window is on. How can I
do this?
This may require changing the Xquartz configuration so that it treats
the two Mac displays as two X display surfaces (I don't know the right
terminology). Alternatively, it's OK to have Xquartz limit the X
display surface only to my external SyncMaster display. Is this possible?
I'm having a hard time finding even a description of how Xquartz system
presents the Mac OS displays and preferences (size, resolution, etc) in
X windows terms. I remember reading that the "Displays have separate
Spaces" setting is significant. Surely all that is an FAQ, and is
written down somewhere?
In case it's useful, here's what xrandr shows when the Built-in Display
is at default, medium resolution:
% xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1920 x 2100, maximum 2880 x 2422
default connected 1920x2100+0+0 0mm x 0mm
[list of resolutions omitted]
And here's what xrandr shows when I set the Built-in Display to maximum,
tiny-text resolution:
% xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1920 x 2400, maximum 2880 x 2422
default connected 1920x2400+0+0 0mm x 0mm
[list of resolutions omitted]
The pixel width of the X display is 1920 pixels in each case. When the
Built-in Display is at medium resolution, the pixel height is (pixel
height of SyncMaster display + (pixel height of Built-in Display)/2).
When the Built-in Display is at maximum resolution, the pixel height is
(pixel height of SyncMaster display)*2, or ((pixel height of SyncMaster
display)/2 + (pixel height of Built-in Display)). I'm willing to
believe that maximum resolution for the Retina display is twice as fine
as default resolution. That makes these pixel heights plausible, but
doesn't explain them.
If this is written down somewhere, just giving me the link would be a
good start.
Thank you in advance!
--Jim DeLaHunt, Vancouver, Canada
--
--Jim DeLaHunt, [email protected] http://blog.jdlh.com/ (http://jdlh.com/)
multilingual websites consultant
157-2906 West Broadway, Vancouver BC V6K 2G8, Canada
Canada mobile +1-604-376-8953
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