Bug 183507

Summary:	Borderless window's rendering order wrong with Intel KMS
Product:	Base System	Reporter:	Johannes Lundberg <johalun0>
Component:	misc	Assignee:	freebsd-bugs (Nobody) <bugs>
Status:	Closed Overcome By Events
Severity:	Affects Only Me
Priority:	Normal
Version:	Unspecified
Hardware:	Any
OS:	Any

Description Johannes Lundberg 2013-10-31 01:20:00 UTC

On a system with X11 and openbox window manager windows get render in correct order as long as they have border (window decorations). If I create a borderless window and configure it to stay always on top, it stays on top of other windows that have a border but it does not stay on top of windows that are borderless.

Same result if run without window manager.

On a machine with Intel HD4000 graphics this happens only with the Intel driver. This problem does NOT occur with vesa driver or on vmware with vmware driver.

This problem did not exist in HEAD about two months ago.

How-To-Repeat: Open two borderless x11 windows, configure window 1 to stay always on top and give focus to window 2. Window 2 should stay behind window 1 but it does not.