Intel i915 integrated graphics under Debian: how to get rid of sluggish 2D performance

Bogdan — Sun, 07 Feb 2010 19:04:49 +0000

To the best of my knowledge, X.org is targeting for a xorg.conf-less operations - this is why xorg.conf may actually be absent from recent Debian systems. To be sure, run `locate xorg.conf`. If that shows no results - just create a new xorg.conf file under /etc/X11/ (this is where it has to be put). There used to be some packages which generated "skeleton" xorg.conf files - e.g. 'dexconf', but they seem to be discontinued. Looks like your only option is just writing a new xorg.conf. Below is mine (from a home computer, so it has entries for ATI card); it was mostly written manually, and it does work fine. Hopefully, this will give you a place to start.

# xorg.conf (X.Org X Window System server configuration file)
#                                                            
# Edit this file with caution, and see the xorg.conf manual page.           
# (Type "man xorg.conf" at the shell prompt.)                               
#                                                                           
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg    
# package.                                                                  
#                                                                           
# If you have edited this file but would like it to be automatically updated
# again, run the following command:                                         
#   sudo dpkg-reconfigure -phigh xserver-xorg                               

Section "InputDevice"
        Identifier      "Millenium"
        Driver          "kbd"      
EndSection                         

Section "InputDevice"
        Identifier      "X6-60D"
        Driver          "mouse" 
EndSection                      

Section "Device"
        Identifier      "ATI Technologies Inc Radeon HD 3300 Graphics"
        BusID "PCI:1:5:0"
        Driver "fglrx"
        #Driver "radeonhd"
        #Option "DRI" "on"
        #Option "UseConfiguredMonitor" "on"
        ##Screen 0
EndSection

Section "Monitor"
        Identifier      "SyncMaster913N"
        Option "DPMS" "on"
        Option "PreferredMode" "1280x1024"
        # 1280x1024 @ 60.00 Hz (GTF) hsync: 63.60 kHz; pclk: 108.88 MHz
        Modeline "1280x1024"  108.88  1280 1360 1496 1712  1024 1025 1028 1060  -HSync +Vsync
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device  "ATI Technologies Inc Radeon HD 3300 Graphics"
        Monitor "SyncMaster913N"
        DefaultDepth 24
        #Option "Accel" "on"
        SubSection "Display"
                Depth 24
                Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
        EndSubSection
#       SubSection "Display"
#               Depth 16
#               Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
#       EndSubSection
EndSection

Section "DRI"
        Mode 0666
EndSection

Intel i915 integrated graphics under Debian: how to get rid of sluggish 2D performance

Ozy — Sat, 06 Feb 2010 23:40:15 +0000

Hi,

I have the same problem and found FPS 250. tried to amend the xorg.conf but didn’t find it under /etc/Xll. Tried to generate another one but joy. Could you please advise. running debian squeeze

Intel i915 integrated graphics under Debian: how to get rid of sluggish 2D performance

Bogdan — Tue, 02 Jun 2009 07:04:27 +0000

I think it doesn’t belong to the “i915″ family, but is similar (because of being Intel integrated video solution). I’m sure you could google for X3100-specific advice. Or, at the very least, try various options from this post one-by-one, measuring performance somehow after each change.
Please write back what you achieve.

Intel i915 integrated graphics under Debian: how to get rid of sluggish 2D performance

geo909 — Tue, 02 Jun 2009 02:08:10 +0000

Hi,

thanks for posting that! I was wondering if this applies to my situation (I run debian
and i have issues with my performance). My graphics is an Intel Graphics Media Accelerator
X3100. Does that belong to the i915 family?

Thanks in advance..

Intel i915 integrated graphics under Debian: how to get rid of sluggish 2D performance

joe — Sat, 30 May 2009 03:41:06 +0000

Thanks for the article and the suggestions. I did play with the same settings and increased the fps to 1370 by using one of the methods for fixing MTRR. See my post bellow for more details.

note by blog owner: the page linked to is a forum with restricted access, and requires forum registration to view content
http://www.pclinuxos.com/index.php?option=com_smf&Itemid=58&topic=58215.0

Hope that helps,
GregPCLOS