Hi, For another data point, I've attached the output to the following: lsb_release -a > graphics-stack.txt && echo >> graphics-stack.txt && dpkg -l linux-image-4.4.14.20160627 *drm* xserver-xorg-video-intel *mesa* libva* i965-va-driver | sed '/<none>/d' >> graphics-stack.txt
As Sebastian notes, I also think it's unlikely that the libva subsystem is exclusively at fault. Norbert, does your system exhibit this behaviour if you install libva.*=1.7.1, but use an older version of i965-va-driver? To provide more useful debugging info, could you please install the following: linux-image-4.6.0-1-amd64=4.6.2-2, xserver-xorg-video-intel-dbg, and i965-va-driver-dbg? Then boot linux-4.6.2 with drm.debug=0xe. Please specify which applications exhibit the corruption. What compositing window manager are you using, and what CPU and GPU ? Also, please attach your "dmesg > ~/dmesg.log" and "lspci -nn | grep -e "\[03..\]: > ~/gpu.info && echo && cat /proc/mtrr >> ~/gpu.info" What Norbert describes as " * redrawing of applications full of failures (no redrawing in many cases!)" reminds me of when Kwin is configured to "Re-use screen content". Also, a long time ago I had similar symptoms on my Sandybridge (2000-series i5) Thinkpad. I believe it only affected Iceweasel/Firefox, but it was so long ago I'm not sure... It might have been caused by an interaction between kernel version and i965-va-driver version I was using. Cheers, Nicholas
Distributor ID: Debian Description: Debian GNU/Linux 8.5 (jessie) Release: 8.5 Codename: jessie Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-============================-===============================-============-====================================================================== ii i965-va-driver:amd64 1.4.1-2 amd64 VAAPI driver for Intel G45 & HD Graphics family ii i965-va-driver:i386 1.4.1-2 i386 VAAPI driver for Intel G45 & HD Graphics family ii libdrm-amdgpu1:amd64 2.4.68-1~bpo8+1 amd64 Userspace interface to amdgpu-specific kernel DRM services -- runtime ii libdrm-amdgpu1:i386 2.4.68-1~bpo8+1 i386 Userspace interface to amdgpu-specific kernel DRM services -- runtime ii libdrm-dev:amd64 2.4.68-1~bpo8+1 amd64 Userspace interface to kernel DRM services -- development files ii libdrm-intel1:amd64 2.4.68-1~bpo8+1 amd64 Userspace interface to intel-specific kernel DRM services -- runtime ii libdrm-intel1:i386 2.4.68-1~bpo8+1 i386 Userspace interface to intel-specific kernel DRM services -- runtime ii libdrm-nouveau2:amd64 2.4.68-1~bpo8+1 amd64 Userspace interface to nouveau-specific kernel DRM services -- runtime ii libdrm-nouveau2:i386 2.4.68-1~bpo8+1 i386 Userspace interface to nouveau-specific kernel DRM services -- runtime ii libdrm-radeon1:amd64 2.4.68-1~bpo8+1 amd64 Userspace interface to radeon-specific kernel DRM services -- runtime ii libdrm-radeon1:i386 2.4.68-1~bpo8+1 i386 Userspace interface to radeon-specific kernel DRM services -- runtime ii libdrm2:amd64 2.4.68-1~bpo8+1 amd64 Userspace interface to kernel DRM services -- runtime ii libdrm2:i386 2.4.68-1~bpo8+1 i386 Userspace interface to kernel DRM services -- runtime ii libegl1-mesa:amd64 11.1.3-1~bpo8+1 amd64 free implementation of the EGL API -- runtime ii libegl1-mesa-dev:amd64 11.1.3-1~bpo8+1 amd64 free implementation of the EGL API -- development files ii libegl1-mesa-drivers:amd64 11.1.3-1~bpo8+1 amd64 transitional dummy package ii libgl1-mesa-dev:amd64 11.1.3-1~bpo8+1 amd64 free implementation of the OpenGL API -- GLX development files ii libgl1-mesa-dri:amd64 11.1.3-1~bpo8+1 amd64 free implementation of the OpenGL API -- DRI modules ii libgl1-mesa-dri:i386 11.1.3-1~bpo8+1 i386 free implementation of the OpenGL API -- DRI modules ii libgl1-mesa-glx:amd64 11.1.3-1~bpo8+1 amd64 free implementation of the OpenGL API -- GLX runtime ii libgl1-mesa-glx:i386 11.1.3-1~bpo8+1 i386 free implementation of the OpenGL API -- GLX runtime ii libglapi-mesa:amd64 11.1.3-1~bpo8+1 amd64 free implementation of the GL API -- shared library ii libglapi-mesa:i386 11.1.3-1~bpo8+1 i386 free implementation of the GL API -- shared library ii libgles1-mesa:amd64 11.1.3-1~bpo8+1 amd64 free implementation of the OpenGL|ES 1.x API -- runtime ii libgles2-mesa:amd64 11.1.3-1~bpo8+1 amd64 free implementation of the OpenGL|ES 2.x API -- runtime ii libgles2-mesa-dev:amd64 11.1.3-1~bpo8+1 amd64 free implementation of the OpenGL|ES 2.x API -- development files ii libglu1-mesa:amd64 9.0.0-2 amd64 Mesa OpenGL utility library (GLU) ii libglu1-mesa:i386 9.0.0-2 i386 Mesa OpenGL utility library (GLU) ii libglu1-mesa-dev 9.0.0-2 amd64 Mesa OpenGL utility library -- development files rc libosmesa6:i386 8.0.5-4+deb7u2 i386 Mesa Off-screen rendering extension ii libva-dev:amd64 1.7.1-1~bpo8+1 amd64 Video Acceleration (VA) API for Linux -- development files ii libva-drm1:amd64 1.7.1-1~bpo8+1 amd64 Video Acceleration (VA) API for Linux -- DRM runtime ii libva-egl1:amd64 1.7.1-1~bpo8+1 amd64 Video Acceleration (VA) API for Linux -- EGL runtime ii libva-glx1:amd64 1.7.1-1~bpo8+1 amd64 Video Acceleration (VA) API for Linux -- GLX runtime ii libva-tpi1:amd64 1.7.1-1~bpo8+1 amd64 Video Acceleration (VA) API for Linux -- TPI runtime ii libva-wayland1:amd64 1.7.1-1~bpo8+1 amd64 Video Acceleration (VA) API for Linux -- Wayland runtime ii libva-x11-1:amd64 1.7.1-1~bpo8+1 amd64 Video Acceleration (VA) API for Linux -- X11 runtime ii libva1:amd64 1.7.1-1~bpo8+1 amd64 Video Acceleration (VA) API for Linux -- runtime ii libva1:i386 1.7.1-1~bpo8+1 i386 Video Acceleration (VA) API for Linux -- runtime ii libval14:amd64 2.0-1.1 amd64 DNSSEC validation library (shared library) ii libwayland-egl1-mesa:amd64 11.1.3-1~bpo8+1 amd64 implementation of the Wayland EGL platform -- runtime ii linux-image-4.4.14.20160627 4.4.14.20160627-10.00.Custom amd64 Linux kernel binary image for version 4.4.14.20160627 ii mesa-common-dev:amd64 11.1.3-1~bpo8+1 amd64 Developer documentation for Mesa ii mesa-utils 8.2.0-1 amd64 Miscellaneous Mesa GL utilities ii xserver-xorg-video-intel 2:2.99.917+git20160522-1~bpo8+1 amd64 X.Org X server -- Intel i8xx, i9xx display driver