http://bugzilla.suse.com/show_bug.cgi?id=1097207 http://bugzilla.suse.com/show_bug.cgi?id=1097207#c7 Michal Srb <msrb@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |IN_PROGRESS Assignee|xorg-maintainer-bugs@forge. |msrb@suse.com |provo.novell.com | --- Comment #7 from Michal Srb <msrb@suse.com> --- More observations: It also happens in Wayland, both Plasma and Gnome. (With nouveau.) But on X it can be prevented by setting LIBGL_DRI3_DISABLE=1. Qt re-renders the window after it receives the expose event. It seems that at that moment the main framebuffer still has the previous size. So after maximizing the rendering goes into buffer that is too small and does not cover the window. After restoring back to the 200x200 size, the rendering draws into 200x200 rectangle in left bottom corner of the framebuffer, but the window then displays 200x200 rectangle from the left top corner which contains just white color. The main framebuffer seem to be resized after the rendering is done. I am still trying to find why. -- You are receiving this mail because: You are on the CC list for the bug.