Package: libgl1-mesa-glx Version: 9.2.2-1 Severity: important Dear Maintainer,
after upgrading to XServer 1.15, compositing in KWin does not work anymore. Downgrading X back to 1.14 confirmed that indeed the issue was introduced by the upgrade. However, further research indicates that this is actually a bug in Mesa, which has been reported against Ubuntu at [1] and upstream at [2]. Upstream has patches [3][4]. It's not only kwin showing the bug, but also my small GL test application [5]: glXChooseFBConfig returns a GLXFBConfig that, when passed to glXGetVisualFromFBConfig, just yields NULL. The patch [3] indicates that the problem is incorrect default values for GLX_DRAWABLE_TYPE, and indeed if I explicitly request a GLX_DRAWABLE_TYPE of GLX_WINDOW_BIT in my test application, the bug is gone. $ sudo lspci -nn |grep -i vga 00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M [GeForce GT 630M] [10de:0de9] (rev ff) Kind regards Ralf [1] https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1278168 [2] https://bugs.freedesktop.org/show_bug.cgi?id=70706 [3] http://patchwork.freedesktop.org/patch/20458/ [4] http://patchwork.freedesktop.org/patch/20464/ [5] http://www.ralfj.de/git/gltest.git -- System Information: Debian Release: jessie/sid APT prefers testing APT policy: (990, 'testing'), (100, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.12-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages libgl1-mesa-glx:amd64 depends on: ii libc6 2.17-97 ii libdrm2 2.4.52-1 ii libglapi-mesa 9.2.2-1 ii libx11-6 2:1.6.2-1 ii libx11-xcb1 2:1.6.2-1 ii libxcb-dri2-0 1.10-2 ii libxcb-glx0 1.10-2 ii libxcb1 1.10-2 ii libxdamage1 1:1.1.4-1 ii libxext6 2:1.3.2-1 ii libxfixes3 1:5.0.1-1 ii libxxf86vm1 1:1.1.3-1 ii multiarch-support 2.17-97 Versions of packages libgl1-mesa-glx:amd64 recommends: ii libgl1-mesa-dri 9.2.2-1 libgl1-mesa-glx:amd64 suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org