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Old 01-14-2008, 06:39 AM   #1
falcon56215
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Performance with an IGP 320M


I have a Compaq Presario 2195US with the IGP 320M graphics card. I know you are not supposed to use glxgears as a benchmark, but I am getting around 250FPS when I run it. Open Arena runs fairly decent, although I have noticed some maps exhibit strange behavior with lightmapping enabled, while others act strange with vertex lighting enabled. Is this about what I should expect with this card? It uses 64MB of shared video RAM, although I can set it to 128MB in the bios, I am not sure if that is supported by the card. I just want to tweak the card as best I can under linux. I have tried changing various parameters in xorg.conf, but consistently get about 250FPS from glxgears. Any suggestions or comments from others who have this card would be appreciated.
 
Old 01-15-2008, 09:27 AM   #2
falcon56215
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OK, I ran across a neat little utility called driconf that allowed me to really tweak my settings, especially turning on HyperZ. I am not sure which setting really made the most difference, but I now get >700 FPS on glxgears vs the consistant 250 FPS that I was getting before. Hope this helps others who may have the IGP320m or IGP340m.
 
Old 01-15-2008, 03:07 PM   #3
dracolich
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I would've said ~250 sounds low for 64MB. driconf sounds interesting. I have an HP ze4315 with the same IGP320M so I might check it out. Mine is set to 16MB in BIOS since the most graphic intensive thing I do is Doom Legacy, and I want to conserve system memory. With the man page for the Xorg radeon driver I was able to tweak mine to ~400, but would never expect this chip capable of >700! Thanks for the tip.
 
Old 01-16-2008, 03:31 PM   #4
dracolich
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Unbelievable! I just installed driconf and the only option I changed is enabling HyperZ. Now I'm getting over 1100fps in glxgears! Awesome tip, falcon56215. According to a quick Google search, HyperZ is a feature in ATI cards whose sole purpose is to improve rendering efficiency.
 
Old 01-16-2008, 03:37 PM   #5
falcon56215
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I'm glad it worked for you.
 
Old 01-16-2008, 03:39 PM   #6
falcon56215
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By the way, dracolich, can you post your xorg.conf file? I would like to see how you tweaked your card and maybe try some of those settings on mine.
 
Old 01-16-2008, 05:08 PM   #7
dracolich
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Sure, no problem. I'll just post the relevant sections.
Code:
Section "Module"

# This loads the DBE extension module.

    Load        "dbe"   # Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection

# This loads the font modules
    Load        "type1"
    Load        "freetype"
    Load        "speedo"

# This loads the GLX module
    Load        "GLcore"
    Load        "glx"

# This loads the DRI module
    Load        "dri"

EndSection
Code:
Section "Device"
    Identifier  "ATI Radeon Mobility"
    Driver      "radeon"
    VendorName  "ATI"
    BoardName   "Radeon Mobility U1"
    VideoRam    32768
    #Option     "UseFBDev"
    BusID       "PCI:1:5:0"
    Option      "AGPMode" "4"
    Option      "AGPFastWrite" "On"
    Option      "EnablePageFlip" "On"
    Option      "ColorTiling" "On"
    Option      "RenderAccel" "On"
    Option      "AccelMethod" "XAA"
    # Insert Clocks lines here if appropriate
EndSection
I thought it was only 16MB, maybe I increased it to 32 when I increased the system memory to 768.
 
  


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