Red Hat Bugzilla – Bug 511270
metacity maps new windows on wrong monitor head
Last modified: 2010-12-05 01:43:09 EST
Metacity seems to employ a window placement algorithm that minimizes overlap. This makes sense within one monitor head, but does not make sense across all monitors.
Right now multihead users end up in a situation where some dialog for a maximized window ends up on a different head than the maximized window.
I think we should probably make new windows show up on the head the the mouse pointer if we don't know better.
I looked at this a bit today.
It looks like I misdiagnosed what was going on. Looking through the code, metacity already restricts placement to the monitor the mouse cursor is positioned on.
The problem I was seeing was specific to one app, Firefox. When running a maximized firefox window and opening its Preferences dialog, the Preferences dialog shows up on the wrong head.
Assuming my gdb session lacks mistakes, it appears firefox is doing a few bad things here:
1) It's setting a PPosition size hint on the window
2) It's not making the window TYPE_DIALOG
3) It's not setting the window as transient to its parent
4) It's passing in the wrong x and y values for its initial configure request
This bug appears to have been reported against 'rawhide' during the Fedora 12 development cycle.
Changing version to '12'.
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