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-   -   Geforce 7900 Go (http://www.nvnews.net/vbulletin/showthread.php?t=80630)

hsyl20 11-17-06 03:11 PM

Geforce 7900 Go
I would like to know if the support for the Geforce 7900 Go (mobile) card is planned on Linux? Because even with the latest driver, i get freezes of X and random pixel blinking.

netllama 11-17-06 03:16 PM

Re: Geforce 7900 Go
The Geforce 7900 Go has been supported for quite a while. If you're experiencing problems, see:

hsyl20 11-18-06 11:55 AM

Re: Geforce 7900 Go
1 Attachment(s)
Yes i'm experiencing problems and i have done what is said in the thread you mention but without success.

Problems are:
- X often freezes for a while
- some pixels blink randomly
- random glitchs

I attached a nvidia-bug-report to this message.

My configuration is:
Geforce 7900 Go
Screen resolution: 1920 x 1200
Keynux Ymax laptop:
Core duo
Mandriva 2007


netllama 11-18-06 07:21 PM

Re: Geforce 7900 Go
I have a few questions:
0) Have you verified that you're using the latest BIOS ?
1) Do these problems persist if you use a 2.6.18.x kernel.org kernel?


hsyl20 11-19-06 11:04 AM

Re: Geforce 7900 Go
0) I have mailed Keynux in order to know if a new Bios is available. I think i'll get the answer during the coming week.

1) I have tried to install the nvidia driver with the kernel-linus-2.6.18 mandriva package (i'm not sure it is the same kernel as the one on kernel.org) but X didn't start (and i get an annoying redundant acpi error (AE_NOT_FOUND.. or something like that)).

I will try different kernels later (when i will be back home in 2 weeks i guess).


hsyl20 11-28-06 01:06 AM

Re: Geforce 7900 Go
The trick mentionned here: http://nvnews.net/vbulletin/showthread.php?t=80888 worked for me too!! Thanks to "Naked"!

But a problem still remains: when i use a program which wants to switch the resolution (for instance from 1920x1200 to 800x600), X restarts. I will post a bug-report soon.

netllama 11-28-06 10:44 AM

Re: Geforce 7900 Go
The X restart when changing modes issue, is a known bug, which will be resolved in the next driver release.

f1f0 11-28-06 11:17 AM

Re: Geforce 7900 Go

Originally Posted by netllama
The X restart when changing modes issue, is a known bug, which will be resolved in the next driver release.


I forgot to apply the above mentioned trick, testing it now (without Beryl as it certainly hangs X). All mentioned cards are GeForce Go, which gives me high hope. This is my current configuration:
  • Linux SMP kernel
  • Latest BIOS (Acer Aspire 5583WXMi, which is ironnically too new to have its Windows drivers downloadable on Acer homepage).
  • Workaround xorg.con options applied just to be sure: AIGLX Off, Composite Off.
  • 1.0.9742 driver with a GeForce Go 7300.

f1f0 11-29-06 11:34 AM

Re: Geforce 7900 Go
I presume this is a bit premature to judge the effect of this workaround, but this has solved multiple problems I was having:
  • Random X crashes/hangs: It can now run safely with Beryl without me trying to make it crash (by openning many OpenGL windows simultaneously, resizing/max-minimizing, switching repeatedly to desktop/fullscreen mode).
  • Switching to and from VT is no longer the problem.
  • TV-Out is working nearly perfect (somehow I couldn't make my TV pans, albeit in Clone mode)

netllama, will you please investigate this option and possibly stickified this unique workaround when everything is cleared ?, it seems to work with several cards in GeForce Go family, but the others may take a shot.


netllama 11-29-06 12:17 PM

Re: Geforce 7900 Go
I'm glad to hear that it seems to have fixed your issue. That 'trick' is likely specific to your model of notebook, and isn't something that people should blindly try to use as it could cause hardware damage or other forms of instability if used improperly.

Naked 11-30-06 09:18 AM

Re: Geforce 7900 Go
Everybody who stumbles on this, by all means do heed netllama's warning - he's the one that knows stuff anyway, we are just guessing. So, what I say below should not matter to you unless you are willing to risk the health of your graphics adapter :)

However, I don't agree that the "trick" is specific to the model of notebook. This "trick" is the exact same that is present in the Windows drivers for Geforce Go 7 series, here:


That page also lists the Notebook Manufacturers that are supported by the Windows driver. So, if your notebook is listed there, there's a better chance of this fix actually making a difference.

But, to be honest, there are three registry keys that are specific to the Geforce Go 7 series drivers - and the one I gave was only one of them, which did the trick for me - adding the other two is probably a reasonable idea if you want to be as close to the Windows version as possible. I will probably test those as well (and also to enabling PowerMizer features ;) later on).

hsyl20 01-12-07 06:54 PM

Re: Geforce 7900 Go
Does the trick works for you with the latest version of the Nvidia driver? If it works, i would be glad to know what are the other registry keys involved because with just the one above, it doesn't work anymore. :(


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