Hi all,
WIth the release of GNOME Shell 3.10, I'm trying to update my extensions to
3.8...
In particular, I have an extension that undecorates windows when they are
maximized (maximus).
For various reasons one way the extension does this is to modify the
'_MOTIF_WM_HINTS' of the window as opposed to setting the
'GTK_SET_HIDE_TITLEBAR_WHEN_MAXIMIZED' flag (note - the extension *does* do
this by default but a couple of window themes, notably Ubuntu's Ambiance
and Radiance don't seem to support this and in these cases I fall back to
MOTIF_WM_HINTS).
I have noticed a bug (maybe?)::
I find that in GNOME 3.8 with any theme (e.g. Adwaita), if I go to the
command line and do:
xprop -f _MOTIF_WM_HINTS 32c -set _MOTIF_WM_HINTS '0x2, 0x0, 0x0, 0x0,
0x0'
(the above sets a window to be undecorated)
and then click on a maximized window of my choice to undecorate, the
contents of that window go blank. When I unmaximize the window, the
contents appear again. (Or, I can choose an unmaximized window and it
undecorates, but when I maximize it the contents go blank).
In either case the window is undecorated as I expect, it's just that when I
maximize it the window goes blank.
Note that this happens *even when I do not have my extension installed*, so
it is not an extension problem.
**How may I go about tracking down why this happens and how to fix it?**
I asked on IRC a long time ago and someone mentioned it could be to do with
frame synchronization in Mutter, and there was a particular person I was
meant to ask (don't remember the name) but they were not online at the time
(I'm from Australia so have trouble lurking when people are online).
Screenshot of what I mean by the window going "blank":
https://www.copy.com/s/4KM3qGD3vcVm/DeepinScrot-2453.png
cheers,
Amy
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