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Old 06-24-09, 01:35 AM   #1
pegler
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Default 9400m poor performance

I recently built a machine and used zotac's itx-b motherboard. It says it has an onboard 9400M GPU. I am running Ubuntu 9.04. I installed the 185.18.14 driver as recommended from places I read. I restarted and now I have worse resolution than before. I can only select between 640x480 and 320x240. Any advise would be greatly appreciated.

Thanks,
Matt
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Old 06-24-09, 01:48 AM   #2
Lithorus
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Default Re: 9400m poor performance

My advice is to get rid of the manually installed drivers and use this repo instead :
Installing the drivers manually is just asking for trouble IMO. Ofcourse you couldn't possible have know.

Although from the log it does seem that it doesn't detect the CRT monitor correct.
Quote:
(WW) NVIDIA(GPU-0): The EDID read for display device CRT-0 is invalid:
(WW) NVIDIA(GPU-0): unrecognized EDID Header.
(II) NVIDIA(0): NVIDIA GPU ION (C79) at PCI:3:0:0 (GPU-0)
(--) NVIDIA(0): Memory: 524288 kBytes
(--) NVIDIA(0): VideoBIOS: 62.79.65.00.00
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on ION at PCI:3:0:0:
(--) NVIDIA(0): CRT-0
(--) NVIDIA(0): CRT-0: 300.0 MHz maximum pixel clock
(II) NVIDIA(0): Assigned Display Device: CRT-0
(==) NVIDIA(0):
(==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
(==) NVIDIA(0): will be used as the requested mode.
(==) NVIDIA(0):
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0): "nvidia-auto-select"
(II) NVIDIA(0): Virtual screen size determined to be 640 x 480
(WW) NVIDIA(0): Unable to get display device CRT-0's EDID; cannot compute DPI
Have you tried looking in the 'nvidia-settings' application?
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Old 06-24-09, 02:39 AM   #3
pegler
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Default Re: 9400m poor performance

I looked into the nvidia-settings application and didn't find anything that would let me specify my display, or force any sort of setting. Did I miss something or is there a command I can run from the command line to force a setting?

Thank for your quick response.
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Old 06-24-09, 06:37 AM   #4
Lithorus
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Default Re: 9400m poor performance

Quote:
Originally Posted by pegler View Post
I looked into the nvidia-settings application and didn't find anything that would let me specify my display, or force any sort of setting. Did I miss something or is there a command I can run from the command line to force a setting?

Thank for your quick response.
Nothing under "X Server Display Configuration"?

Yes, you can force a monitor setup in xorg.conf if you know the horizontal and vertical Hz. Don't remember what the settings are called, but I remember it being described in Nvidia's README file.
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Old 06-24-09, 02:24 PM   #5
pegler
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Default Re: 9400m poor performance

That worked. I ended up following the instructions here: http://ubuntuforums.org/showthread.p...379#post129379

Thanks for your help!
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Old 06-25-09, 12:49 AM   #6
Lithorus
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Default Re: 9400m poor performance

Glad I could help. Do also check up on using the ppa instead of manually installed driver. You'll thank yourself when the kernel gets updated.
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