Intel KMS driver

Welcome to Intel DRM/KMS Extreme Graphics!

The xorg-video-intel package is the open-source 2D graphics driver for the X Window System as implemented by X.org. It supports a variety of Intel graphics chipsets including:

•     i830M,845G,852GM,855GM,865G,
•     915G/GM,945G/GM/GME,946GZ
•     G/GM/GME/Q965,
•     G/Q33,G/Q35,G41,G/Q43,G/GM/Q45
•     PineView-M (Atom N400 series)
•     PineView-D (Atom D400/D500 series)
•     Intel HD Graphics: 2000-6000,
•     Intel Iris Graphics: 5100/6100, and
•     Intel Iris Pro Graphics: 5200/6200/P6300.

Support for Intel DRM modules: https://www.illumos.org/projects/gfx-drm

Open source kernel driver(s) by Oracle:

• S11: https://hg.openindiana.org/upstream/oracle/x-cons/x-s11-update-clone/file/221e9d9cc9cb/open-src/kernel
• S12: https://hg.openindiana.org/upstream/oracle/x-cons/x-s12-clone/file/42bcaa2f7d25/open-src/kernel

Relevant kernel code is located in drm and i915 subfolders.

illumos port of Oracle code is available here:

https://github.com/illumos/gfx-drm

Martin Bochnig, creator of OpenSXCE, initially backported the S12 driver to illumos, available in oi-userland until December 20. 2016.

It was then superseeded by the new gate (#2678) providing improvements to the gfx_private interface and agpgart driver, as well as containing userland libraries used by graphics, like libdrm.

References

Alan Coopersmith pointed to the following documents regarding DRI/KMS: 

• http://www.phoronix.com/scan.php?page=news_item&px=Solaris-DRM-KMS-2015
• http://www.x.org/wiki/Events/XDC2015/Program/#Fishel_status_drm_i915_solaris
• https://en.wikipedia.org/wiki/Direct_Rendering_Manager
• http://dri.freedesktop.org/wiki/
• https://wiki.archlinux.org/index.php/kernel_mode_setting
• http://lanyrd.com/topics/x-window-system

Additionally, information about driver development:

• https://01.org/linuxgraphics
• http://dri.freedesktop.org/docs/drm/
• http://blog.ffwll.ch/2013/01/i915gem-crashcourse-overview.html
• blog posts from the i915 Linux maintainer http://blog.ffwll.ch/

Known Issues

SNA

May causes segmentation fault if enabled. If so, just disable SNA and you can copy attached 20-intel-uxa.conf to /etc/X11/xorg.conf.d/.

For now, UXA mode is set by default.

Sandy Bridge GT1

A hardware bug requires implementing a workaround in the Intel ringbuffer implementation, occasional 1-2 second hangs may occur.

Gen >= 8

Generation 8 specifics in Intel ringbuffer implementation are not committed yet.

Hardware Matrix

Reference:

• https://cgit.freedesktop.org/xorg/driver/xf86-video-intel/tree/src/i915_pciids.h
• https://en.wikipedia.org/wiki/List_of_Intel_graphics_processing_units
• http://src.illumos.org/source/xref/gfx-drm/usr/src/uts/intel/io/i915/i915_drv.c#294

Testing