X, backingstore and opengl

Jon TURNEY jon.turney@dronecode.org.uk
Tue Nov 25 13:39:00 GMT 2008

Angelo Graziosi wrote:
> Regarding the problems I have flagged in [1], the first (related to the 
> option +bs of XWin, i.e. the backing store) is still there, also with 
> the recent xorg-server-1.5.3-4.

I'm a little bit confused what problems remain, so I'll tell you my results 
and you can tell me if you agree

                hsimple.C test

1.5.3-3 +bs    server segfault
1.5.3-4 +bs    ok (redrawing of area under menus is messed up)
1.5.3-4        ok

                geom/shapes.C test

1.5.3-3 +bs    root segfault
1.5.3-4 +bs    root segfault
1.5.3-4        root segfault
fixed by adding XLIB_SKIP_ARGB_VISUALS

> For the second (that related to OpenGL applications), I have found the 
> workaround described here [2].
> Now, if
>> nedit needs rebuilding with a patch to work around an issue in lesstif 
>> with
>> the latest X server.
> how can I do the same for ROOT? Which is that patch? or what else?

If you follow the chain of emails back, they lead to


I'm not 100% convinced this is the core issue there, you might like to ask the 
  ROOT developers if it can handle the server reporting visuals with alpha

Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://x.cygwin.com/docs/
FAQ:                   http://x.cygwin.com/docs/faq/

More information about the Cygwin-xfree mailing list