Taskbar appearance changes between xorg-server 11 series and 12.0 series

Eliot Moss moss@cs.umass.edu
Sat Apr 7 04:01:00 GMT 2012

On 4/6/2012 1:01 PM, Jon TURNEY wrote:
> On 05/04/2012 16:54, Eliot Moss wrote:
>> Something seems to have changed between the last 1.11 release and
>> the 1.12.0 (up through the 1.12.0-2 release made yesterday).

>> The window for StartXWin, which is minimized, did not previously
>> result in an X icon in the taskbar, but now does, and it is
>> distinct from the stack of X icons for my several launched
>> xterms.  I feel it is clutter and want to suppress it, but I
>> don't know how at this point.
> I guess the window you are seeing is the terminal window in which bash is
> being run? It's the job of the run command to hide that window, and why it
> should suddenly stop doing so when the XWin at the bottom of the process tree
> changes, I have no idea.

Yes, which is why I, too, was surprised.

> This might perhaps be related to a bug in cygwin 1.7.12 where cygwin
> executables were wrongly handled as native, non-cygwin executables?

I just installed 1.7.13, and the behavior is still there.
It goes away when something completes, which happens when
all the windows started by .startxwinrc are gone.  If I kill
it, then all those initial windows die.  Perhaps this is all
normal, *except* that the run window is displayed.

>> Separately, going from 1.12.0-1 to 1.12.0-2 changed my xemacs
>> icon, to one that is nearly transparent (there's something
>> there, but very hard to discern).  In the past xemacs gave
>> its own icon (which I could never find or override).
> Thanks for pointing this out.  I'd introduced a couple of bugs into the
> fallback icon conversion code for a bitmap pointed to by WM_HINTS (which is
> only used when a NET_WM_ICON property isn't present)
> I've applied a couple of fixes, so hopefully this works better now. I've
> uploaded a snapshot at [2]. Perhaps you could try that out and see if that
> improves things for you?

Yes!  Now the xemacs icon is back to the way it used to be.

> I suspect that the 'XE' icon from
> /usr/share/xemacs-21.4.22/etc/xemacs-icon.xpm is baked into the Xemacs
> executable.  If Xemacs itself doesn't provide a way to change it, you could
> override it for multiwindow mode by using the ICONS directive in XWinrc.

Maybe; if I find one I like :-) ...

>> These various commands / files all seem to be seen and used.  And by the way,
>> the xemacs1 MINIMIZE does not seem to work -- it always starts maximized and I
>> have to minimize it manually.  Hints on that?
> Using -name to set the xemacs resource name does not set the window class
> name, apparently by design [1], so this style directive will not match the
> window title or window class name of your xemacs window.
> Fortunately, you could probably achieve the same effect by adding the
> '-iconic' command line option to the xemacs invocation.

Actually, -iconic does not work; neither does it work to set the iconic
resource to true.  Seems to be an xemacs thing.  In fact, here is a quote
from the FAQ:

"Ugh, this stuff is such an incredible mess that I've about given up getting it to work. The 
principal problem is numerous window-manager bugs... "

However, I find that the .XWinrc MINIMIZE style *does* work ... but of course
only for windows I create later.  And the class name is "emacs", not "xemacs",
hence a STYLE entry of: emacs MINIMIZE ...

Does this suggest to you any other way that might work to get an iconified
xemacs from the .startxwinrc file?

> On 05/04/2012 17:11, Eliot Moss wrote:
>> On xorg-server 1.12.0-2, doing
>> a reload of .XWinrc via the .XWinrc menu cases an
>> exception that kills the X server.  I does put up
>> an error window saying what happened (a
>> segmentation fault).
> This was also related to the icon conversion changes and should be fixed in
> the latest snapshot.

That is indeed now fixed.

Thanks for all the fixes!     E

> [1] http://www.nada.kth.se/cgi-bin/info?%28xemacs-faq.info%29Q3.1.7
> [2] ftp://cygwin.com/pub/cygwinx/XWin.20120406-git-b309f093d6e90201.exe.bz2

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