https://bugs.freedesktop.org/show_bug.cgi?id=18953

--- Comment #3 from Christian Volkmann haveaniceday@cv-sv.de 2011-09-11 02:38:33 PDT --- May be I can reproduce this bug on a openSUSE:

https://bugzilla.novell.com/show_bug.cgi?id=716220

It looks for me that xrandr does not resize the "system buffer" (exa_migration_mixed.c)

I have doubled the allocated memory at exa_migration_mixed.c line 205 for a test. The crash is gone. There are now copy of the images (shown by display) on the other screen. => The problems are more complex than missing increased buffers.

/* Do we need to allocate our system buffer? */ if (!pExaPixmap->sys_ptr) { pExaPixmap->sys_ptr = malloc(pExaPixmap->sys_pitch * pPixmap->drawable.height); if (!pExaPixmap->sys_ptr) FatalError("EXA: malloc failed for size %d bytes\n", pExaPixmap->sys_pitch * pPixmap->drawable.height); }

valgrind ( as root ) with the x-server showed a write after the buffer "pExaPixmap->sys_ptr". But may be mine is a different error ?