4.1.4 / skylake / /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so init failed

[Marc MERLIN <marc_xorg@merlins.org>]

I'm testing a new thinkpad skylake based P70 with dual graphics
legolas:~# lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Device 191b (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GM107GLM [Quadro M600M] (rev a2)
 
LIBVA_DRIVER_NAME=i965 VA_INTEL_DEBUG=1 vainfo
libva info: VA-API version 0.38.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'i965'
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_32
libva error: /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so init failed
libva info: va_openDriver() returns -1
vaInitialize failed with error code -1 (unknown libva error),exit

xserver-xorg-video-intel 2:2.99.917+git20151217-1~exp1

Currently, I cannot play 4K video at full speed with mplayer -vo xv or -vo gl, and -vo vdpau
does not work due to the above.
Suggestions appreciated :)

Xorg output below.

Thanks,
Marc

(**) AIGLX enabled
(II) LoadModule: "intel"
(II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
(II) Module intel: vendor="X.Org Foundation"
	compiled for 1.17.3, module version = 2.99.917
	Module class: X.Org Video Driver
	ABI class: X.Org Video Driver, version 19.0
(II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
 i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,
 E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,
iew G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,
 4 Series, G45/G43, Q45/Q43, G41, B43
(II) intel: Driver for Intel(R) HD Graphics: 2000-6000
(II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100, 6100
(II) intel: Driver for Intel(R) Iris(TM) Pro Graphics: 5200, 6200, P6300
(++) using VT number 7

(II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20150731
(II) intel(0): SNA compiled: xserver-xorg-video-intel 2:2.99.917+git20151217-1~exp1 (Timo Aaltonen <tjaalton@debian.org>)
(II) intel(0): SNA compiled for use with valgrind
(--) intel(0): gen9 engineering sample
(--) intel(0): CPU: x86-64, sse2, sse3, ssse3, sse4.1, sse4.2, avx, avx2; using a maximum of 4 threads
(==) intel(0): Depth 24, (--) framebuffer bpp 32
(==) intel(0): RGB weight 888
(==) intel(0): Default visual is TrueColor
(**) intel(0): Option "TearFree"
(II) intel(0): Output eDP1 using monitor section Monitor0
(--) intel(0): Found backlight control interface intel_backlight (type 'raw') for output eDP1
(II) intel(0): Enabled output eDP1
(--) intel(0): Using a maximum size of 256x256 for hardware cursors
(II) intel(0): Output VIRTUAL1 has no monitor section
(II) intel(0): Enabled output VIRTUAL1
(--) intel(0): Output eDP1 using initial mode 3840x2160 on pipe 0
(**) intel(0): TearFree enabled
(==) intel(0): DPI set to (96, 96)
(II) Loading sub module "dri2"
(II) LoadModule: "dri2"
(II) Module "dri2" already built-in
(II) Loading sub module "present"
(II) LoadModule: "present"
(II) Module "present" already built-in
(==) Depth 24 pixmap format is 32 bpp
(II) intel(0): SNA initialized with generic backend
(==) intel(0): Backing store enabled
(==) intel(0): Silken mouse enabled
(II) intel(0): HW Cursor enabled
(II) intel(0): RandR 1.2 enabled, ignore the following RandR disabled message.
(==) intel(0): DPMS enabled
(==) intel(0): Display hotplug detection enabled
(II) intel(0): Textured video not supported on this hardware or backend
(II) intel(0): [DRI2] Setup complete
(II) intel(0): [DRI2]   DRI driver: i965
(II) intel(0): [DRI2]   VDPAU driver: va_gl
(II) intel(0): direct rendering: DRI2 enabled
(II) intel(0): hardware support for Present enabled
(--) RandR disabled
(II) SELinux: Disabled on system
(II) AIGLX: enabled GLX_MESA_copy_sub_buffer
(II) AIGLX: enabled GLX_ARB_create_context
(II) AIGLX: enabled GLX_ARB_create_context_profile
(II) AIGLX: enabled GLX_EXT_create_context_es2_profile
(II) AIGLX: enabled GLX_INTEL_swap_event
(II) AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control
(II) AIGLX: enabled GLX_EXT_framebuffer_sRGB
(II) AIGLX: enabled GLX_ARB_fbconfig_float
(II) AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects
(II) AIGLX: enabled GLX_ARB_create_context_robustness
(II) AIGLX: Loaded and initialized i965
(II) GLX: Initialized DRI2 GL provider for screen 0
(II) intel(0): switch to mode 3840x2160@60.0 on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
(II) intel(0): Setting screen physical size to 1016 x 571

Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/  
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