desktop-packages team mailing list archive

[Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>]

At least in the case of -rootless -flatten, part of the problem appears
to be double-reparenting. Apps like GIMP seem to keep their menu windows
around even when they're not visible, presumably to help with menu
scrolling performance. However Xmir has to re-realize and hence tries to
re-reparent the menu windows each time. And it appears on the second and
subsequent opening, a menu's relative position shifts in an unwanted
way.

Without figuring out the root cause we could just avoid redundant
reparenting, however that seems to create  a worse problem whereby the
menu goes invisible. Because we seem to need the extra reparenting to
kick the XComposite logic into action. So more investigation required...

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https://bugs.launchpad.net/bugs/1498738

Title:
  Xmir -rootless: Menus/dialogs sometimes appear in the wrong place

Status in xorg-server package in Ubuntu:
  Triaged

Bug description:
  Xmir: Menus/dialogs sometimes appear in the wrong place when using
  -rootless

  In the past fortnight I've got menu placement working for the first
  time. However if you use an app for a little while its sub-surface
  placement (including menus) will sometimes get confused. And menus
  start to appear more around the middle of the app window.

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