Comments on: Intel 945 Video Hint

By: Vincent

Vincent — Sat, 14 Feb 2009 00:48:18 +0000

Hi,
I use Intrepid and I have the minimal xorg.conf from Xorg 7.4. Where should I add these options?

By: A suzerBuzer

A suzerBuzer — Fri, 06 Feb 2009 01:33:50 +0000

Well it’s official, from some of the metrics above, it seems that ubuntu is faster than opensuse (slightly) (I’m currently on opensuse because of their better KDE4/3 focus) PS. to optimize your Intel 945 GM/GMA/GML/etc try the following in Section “Device” of your xorg.conf file:

Option “AccelMethod” “XAA”
Option “PageFlip” “true”
Option “TripleBuffer” “true”
Option “XvMC” “true”
Option “XvMCSurfaces” “7″

force 2D Acceleration to XAA, since EXA is still unstable/wierd
as of intel driver 2.5.0. XAA and EXA are 2D acceleration methods (EXA will be superior in the future, just not yet) the folks at Suse turned this on as default in opensuse 11.1 and it caused suse to come out dead last in graphic benchmarks of 4 major distros: Ubuntu, Fedora, Mandriva, Gentoo, so beware of EXA on Intel 945 and prior.

2D accel method:
Option “AccelMethod” “XAA”

3D accel optimizations:
Option “PageFlip” “true”
Option “TripleBuffer” “true”
(the above 2 option may cause instability with some peoples systems, test these and remove BOTH [as they work together] if it causes any problems)

Finally, explicitly turning ON Intel’s hardware, MPEG2 Motion Compensation
Decoder logic with following options:

VIDEO Accel: Hardware Video Decode:
Option “XvMC” “true”
Option “XvMCSurfaces” “7″

Note well: despite claims by the developers at Intel and Mesa,
you MUST specify the exact path of the libIntelXvMC.so in the
file /etc/X11/XvMCConfig (if it doesn’t exist on ur system, create it and
place the entry on the first line of /etc/X11/XvMCConfig as follows:
(as an example) Line 1 of my XvMCConfig contains the following:
/usr/lib64/libIntelXvMC.so

search for this lib file on ur system as it maybe in a different place on ur system

make sure to set your video player software to use Xvideo with Motion Compensation instead of plain Xv, for example KMPLAYER;s video output should be set to XvMC instead of Xv; results…–> much lower CPU and smooth video playback of DVD (Mpeg2) video.

By: Sam Weber

Sam Weber — Sun, 28 Sep 2008 06:39:54 +0000

THANKS! Went from 400 fps to 1000! no wonder things felt sluggish on kde4…

By: SIO

SIO — Thu, 07 Feb 2008 15:35:41 +0000

Brian Curran
This file is in your home directory. For example /home/USERNAME/.bashrc

2 author
THX a lot!! This hint increased my fps a lot (according to glxgears from 1090 to 1780)

By: Brian Curran

Brian Curran — Sat, 26 Jan 2008 21:21:49 +0000

hi all pretty new to linux and this is probabley not the right place to ask this was just wondering if someone could tell me where I can find the ~/.bashrc file is had no problem editing Xorg.conf but can’t find that file to add
export Intel_Batch=1 line again sorry for asking this here
Thanks

By: fanfantasy7

fanfantasy7 — Wed, 23 Jan 2008 10:07:30 +0000

i have VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)

with (Option “AccelMethod” “xaa”) glxgears result 808 FPS
with (Option “AccelMethod” “exa”) glxgears result 801 FPS
without (Option “AccelMethod”) glxgears result 799 FPS