Difference between revisions of "Intel Extreme Graphics 2"

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= Intel video driver =
 +
The Intel opensource videodriver is maintained by Intel at [http://intellinuxgraphics.org/ intellinuxgraphics.org].
 +
Intel releases a new driver once per quarter. The latest stable release is 2.10.
  
−
=== Linux X.Org driver ===
+
== Kernel mode setting (KMS) ==
−
This chip is supported by the 'i810' driver as part of the X.Org distribution.
+
KMS (Kernel Mode Setting) as the name suggests moves some video setup functions to the kernel. This should have the following benefits over legacy mode setting
 +
* increased stability, because it removes the current contention between the X server and the kernel
 +
* ability to show kernel dump screens even when the X server was running
 +
* rapid mode switching
 +
* in theory should not allow the X video driver to hang the system
 +
* early graphical boot display with seamless login
 +
* should in the future allow for the X server to run without root privileges
  
−
Hardware 3-D acceleration is available using DRI and kernel i915 module (2.6 kernel)
+
Note that KMS does not eliminate the need for the Intel Xorg driver, it just frees that driver from the hardware setup functions.
−
for 16-bit depth.  
+
=== Status===
 +
Right now KMS is still in heavy development, and officially requires at least kernel 2.6.30 with version 2.7 of the Intel Xorg driver. But in reality you should really be running at least the 2.6.31 kernel and version 2.8 of the Intel driver.
  
−
You can configure 3-D acceleration by ensuring that the following is in your xorg.conf:
+
=== Configuration===
 +
In this mode, ideally you do not configure any settings through xorg.conf but by using xrandr, or a graphical front-end to RandR such as gnome-display-settings.
  
−
Section "Device"
+
=== Disabling KMS ===
−
        Identifier "Intel Corporation 82852/855GM Integrated Graphics Device"
+
If KMS causes you problems, you can disable it and return to legacy mode setting by booting with the {{bootparm|nomodeset|}} kernel boot option. But note that starting with the Intel Xorg driver version 2.10 legacy UMS mode is no longer supported.
−
        Driver "i810"
 
−
        BusID "PCI:0:2:0"
 
−
        Option "DRI" "true"
 
−
EndSection
 
  
−
To check that it's working, run glxinfo | grep direct and check that direct draw reports as "Yes"
+
== Legacy mode setting ==
 +
Legacy mode setting means the Intel Xorg driver does the mode setting. This is no longer supported as of version 2.10 of the Intel Xorg driver.
  
−
There are binary drivers for SuSE and a modified X.Org distribution available from Intel.
 
  
−
==== ThinkPad LCD ====
+
=== ThinkPad LCD ===
−
Display on the internal LCD works as long as you set the monitor settings correct.
+
Display on the internal LCD works fine, and is automatically detected.
  
−
==== External VGA port ====
+
=== External VGA port ===
  
−
===== X.org =====
+
=== SVideo port ===
 +
You should be able to activate Svideo using xrandr, similar to this [[How to get TV-Out working on ATI graphic cards]]
  
−
At least using X.org 6.9.0, the following will always enable the VGA port:
+
=== DVI port ===
−
 
 
−
Section "Device"
 
−
        Identifier "VideoCard0"
 
−
        Driver  "i810"
 
−
        Option  "VBERestore" "yes"
 
−
        Option  "Clone" "true"
 
−
        Option  "MonitorLayout" "CRT,LFP"
 
−
        Option  "DevicePresence" "yes"
 
−
EndSection
 
−
 
 
−
To change to which pipe the overlay is directed (e.g. when playing a movie in xine), use:
 
−
 
 
−
xvattr -a XV_PIPE -v ''DISPLAY''
 
−
 
 
−
Where ''DISPLAY'' is either 0 (with the above setup, the CRT) or 1 (with the above setup, the Local Flat Panal).
 
−
 
 
−
===== i855crt =====
 
−
 
 
−
There seems to be many issues trying to do this from within {{path|/etc/X11/xorg.conf}} or {{path|/etc/X11/XFree86.conf}}. The solution for basic projector or cloned output is to use the [http://i855crt.sourceforge.net/ i855-crt] program. Remember that this program is very raw and could damage your display equipment.
 
−
 
 
−
Once this is installed an example command would be (with root permissions):
 
−
:{{cmdroot|i855crt swcursor on "1024x786@85"}}
 
−
to stop it enter
 
−
:{{cmdroot|i855crt off}}
 
−
 
 
−
The video mode in quotes is defined in {{path|/etc/i855crt.conf}} or {{path|~/.i855crt.conf}}.
 
−
{{Fixme|This is specific usage information for that tool. Introducing an own tool page for it should be considered or joining this with other information in a display cloning howto page.}}
 
−
 
 
−
Using MonitorLayout and Clone options it is possible to setup cloned display with X.Org (tested with 6.9.0). Dualhead supported by Xorg driver.
 
−
 
 
−
==== SVideo port ====
 
−
?
 
−
 
 
−
==== DVI port ====
 
 
DVI Pass-through to a Dock or Port Replicator is not supported on any ThinkPad with this chipset.
 
DVI Pass-through to a Dock or Port Replicator is not supported on any ThinkPad with this chipset.
  
 
=== Linux kernel Framebuffer driver ===
 
=== Linux kernel Framebuffer driver ===
−
This chip will work with either the 'vesa' or 'intelfb' driver as part of any recent 2.4 or 2.6 kernel.
+
This chip will work with either the 'vesafb' or 'intelfb' driver. Note that these framebuffers cannot be used in combination with KMS as that provides its own framebuffer.
  
−
=== External Sources ===
+
== External Sources ==
 
*[http://www.intel.com/products/chipsets/eg2/ Intel Extreme Graphics 2 overview]
 
*[http://www.intel.com/products/chipsets/eg2/ Intel Extreme Graphics 2 overview]
  
−
=== ThinkPads this chip may be found in ===
+
== ThinkPads this chip may be found in ==
 
* {{G41}}
 
* {{G41}}
 
* {{R50e}}, {{R51}}
 
* {{R50e}}, {{R51}}
 
* {{X40}}
 
* {{X40}}
  
−
[[Category:Components]]
+
[[Category:Video Controllers]]

Latest revision as of 13:55, 22 January 2021

Intel Extreme Graphics 2

This is an Intel video adapter

Features

Intel video driver

The Intel opensource videodriver is maintained by Intel at intellinuxgraphics.org. Intel releases a new driver once per quarter. The latest stable release is 2.10.

Kernel mode setting (KMS)

KMS (Kernel Mode Setting) as the name suggests moves some video setup functions to the kernel. This should have the following benefits over legacy mode setting

  • increased stability, because it removes the current contention between the X server and the kernel
  • ability to show kernel dump screens even when the X server was running
  • rapid mode switching
  • in theory should not allow the X video driver to hang the system
  • early graphical boot display with seamless login
  • should in the future allow for the X server to run without root privileges

Note that KMS does not eliminate the need for the Intel Xorg driver, it just frees that driver from the hardware setup functions.

Status

Right now KMS is still in heavy development, and officially requires at least kernel 2.6.30 with version 2.7 of the Intel Xorg driver. But in reality you should really be running at least the 2.6.31 kernel and version 2.8 of the Intel driver.

Configuration

In this mode, ideally you do not configure any settings through xorg.conf but by using xrandr, or a graphical front-end to RandR such as gnome-display-settings.

Disabling KMS

If KMS causes you problems, you can disable it and return to legacy mode setting by booting with the nomodeset kernel boot option. But note that starting with the Intel Xorg driver version 2.10 legacy UMS mode is no longer supported.

Legacy mode setting

Legacy mode setting means the Intel Xorg driver does the mode setting. This is no longer supported as of version 2.10 of the Intel Xorg driver.


ThinkPad LCD

Display on the internal LCD works fine, and is automatically detected.

External VGA port

SVideo port

You should be able to activate Svideo using xrandr, similar to this How to get TV-Out working on ATI graphic cards

DVI port

DVI Pass-through to a Dock or Port Replicator is not supported on any ThinkPad with this chipset.

Linux kernel Framebuffer driver

This chip will work with either the 'vesafb' or 'intelfb' driver. Note that these framebuffers cannot be used in combination with KMS as that provides its own framebuffer.

External Sources

ThinkPads this chip may be found in

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