<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [IVB/HSW/BYT-M regression] Ubuntu graphics inverse with gnome-session" href="https://bugs.freedesktop.org/show_bug.cgi?id=71250#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [IVB/HSW/BYT-M regression] Ubuntu graphics inverse with gnome-session" href="https://bugs.freedesktop.org/show_bug.cgi?id=71250">bug 71250</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>No, I haven't tried, but it looks like: commit 2eedf42c229e2251035d716a96b654222155cd51 Author: Adam Jackson <<a href="mailto:ajax@redhat.com">ajax@redhat.com</a>> Date: Thu Oct 31 09:23:52 2013 -0400 dri: Fix GLX_Y_INVERTED_EXT fbconfig attribute We're Y-inverted from GL's coordinates, so this is correct. gnome-shell doesn't seem to check this - somewhat reasonable since the only server that answered the other way around was Xglx - but kwin does, and upside-down hilarity ensues. Tested-by: maelcum on #xorg-devel Signed-off-by: Adam Jackson <<a href="mailto:ajax@redhat.com">ajax@redhat.com</a>> Signed-off-by: Keith Packard <<a href="mailto:keithp@keithp.com">keithp@keithp.com</a>> and so should have been fixed by: commit 17ed7ac1fe7426d66f688087c09da5ff1dbb41d3 Author: Adam Jackson <<a href="mailto:ajax@redhat.com">ajax@redhat.com</a>> Date: Thu Oct 31 18:39:22 2013 -0400 glx: Lie about GLX_Y_INVERTED_EXT Well, that was lame. The problem with reporting y inversion honestly is that libGL asks the driver _its_ opinion of Y inversion, which it just fabricates from whole cloth. So then when libGL goes to compare the driver's idea of fbconfigs with that of the server - a fairly dumb idea to begin with - nothing matches, and direct rendering fails, and sadness. So until the DRI drivers are fixed we should just continue to lie about Y inversion. GLX_DONT_CARE is what libGL would make up for that attribute if we hadn't sent it, so just send that instead. Signed-off-by: Adam Jackson <<a href="mailto:ajax@redhat.com">ajax@redhat.com</a>> Tested-by: Keith Packard <<a href="mailto:keithp@keithp.com">keithp@keithp.com</a>> Signed-off-by: Keith Packard <<a href="mailto:keithp@keithp.com">keithp@keithp.com</a>></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>