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Chris Wilson a44a63d2ff Wait for any pending rendering before switching modes. 
A perennial problem we have is the accursed WAIT_FOR_EVENT hangs, which
occur when we switch the framebuffer before the WAIT_FOR_EVENT completes
and upsets the GPU.

We have tried more subtle approaches to detected these and fix them up in
the kernel, to no avail. What we need to do is to delay the framebuffer
flip until the WAIT completes, which is quite tricky in the kernel
without new ioctls and round-trips. Instead, apply the big hammer from
userspace and synchronise all rendering before changing the framebuffer.
I expect this not to cause noticeable latency on switching modes (far
less than the actual modeswitch) and should stop these hangs once and
for all.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31401 (...)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 		2010-11-05 10:07:46 +00:00
man intel: Listen for hotplug uevents (V3) 2010-10-22 08:35:29 -07:00
src Wait for any pending rendering before switching modes. 2010-11-05 10:07:46 +00:00
uxa uxa: Skip a pixmap lookup if there is no driver finish access function 2010-10-06 12:17:14 +01:00
.gitignore add cscope files to gitignore 2010-07-02 12:39:27 -07:00
AUTHORS AUTHORS: Add Robert Lowery to the authors file 2009-04-15 18:07:17 -07:00
COPYING COPYING: replace stub file with actual Copyright notices. 2010-06-12 20:24:10 -04:00
Makefile.am Makefile.am: add ChangeLog and INSTALL on MAINTAINERCLEANFILES 2009-11-23 09:25:05 -05:00
NEWS Add release notes for the 2.12.902 snapshot. 2010-09-28 20:49:10 -07:00
README Take note for Pineview support in README and manpage 2010-01-04 14:15:41 -08:00
RELEASING Increment version to 2.9.0 2009-09-28 20:03:39 -07:00
autogen.sh Update autogen.sh to one that does objdir != srcdir. 2005-08-18 09:03:47 +00:00
configure.ac Xv: fragments for xv on Sandybridge. 2010-11-01 08:46:14 +08:00

README 

xf86-video-intel
Open-source X.org graphics driver for Intel graphics
http://www.intellinuxgraphics.com/

What is xf86-video-intel
------------------------
The xf86-video-intel module is an open-source 2D graphics driver for
the X Window System as implemented by X.org. It supports a variety of
Intel graphics chipsets including:

	i810/i810e/i810-dc100,i815,
	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)

Where to get more information about the driver
----------------------------------------------
The primary source of information about this and other open-source
drivers for Intel graphics is:

	http://intellinuxgraphics.org/

Documentation specific to the xf86-video-intel driver including
possible configuration options for the xorg.conf file can be found in
the intel(4) manual page. After installing the driver this
documentation can be read with the following command:

	man intel

Mailing list for communication with users and developers of
xf86-video-intel:

	intel-gfx@lists.freedesktop.org

	Note: Subscription is required before posting, but anyone is
	free to subscribe. See instructions (and archives) here:

	http://lists.freedesktop.org/mailman/listinfo/intel-gfx

To report bugs encountered with the driver, see:

	http://intellinuxgraphics.org/how_to_report_bug.html

To see bugs that are targeted to be fixed in the next release:

	https://bugs.freedesktop.org/show_bug.cgi?id=intel-2d-release