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 Post subject: [mini-howto] using Nvidia display drivers (r8756) on toshiba 1410, with zenwalk
PostPosted: Tue Apr 25, 2006 1:55 pm 
Master of the known universe
Master of the known universe

Joined: Fri Mar 10, 2006 7:57 am
Posts: 765
Location: Sundbyberg, Sweden
As stated in another post, nvidia's release 8756 works very well with kernels in the 2.16.x range, no patching required.
It also has some advantages comparing to earlier releases: GLX is enabled by default with composite these days, and the nvidia x server settings tool is runnable without patching too.

For us users of toshiba satellite 1410, installation is just a tidbit harder than for others.

The problem: installation works fine, but your computer hangs totally when starting X:
You need to add module options when loading the nvidia kernel module.

here is how my /etc/modprobe.conf looks.
Code:
blacklist nvidiafb 
blacklist intel_agp
options nvidia NVreg_SoftEDIDs=0 NVreg_Mobile=1

first 2 lines is to stop udev from loading the default kernel modules:
1. "nvidiafb" cannot be loaded at the same time as "nvidia" module.
2. "intel_agp" helps loading nvidias "nv_agp" if you need it.
Third line is important. NVreg_SoftEDIDs=0 apparently switches off detection of your screen resolution, this seem to be the stage where your computer becomes catatonic. NVreg_Mobile=1 tells the driver what to do instead. Nvidia's manual probably tells you to use the value 2 or 4 for toshiba laptops, but don't fall for that one, cause it also locks up your computer, i tried them both.

perfect, you say, now i can start X ?
Well, yes, but you better read on a little further!
The second problem you will have, after following these instructions, is that you start x and the picture does not fill the screen. You get a black band along the right hand side of your monitor.

Solution: edit /etc/x11/xorg.conf

a few extra options are required to get optimal picture....
scroll down to your "monitor" section in xorg.conf

Code:
Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Monitor Vendor"
    ModelName      "The monitor"
    HorizSync       31.5 - 50.0
    VertRefresh     40.0 - 90.0
    Option         "NoLogo"
    Option    "DPMS"
    Option    "SWCursor"
    Option   "ExactModeTimingsDVI"
    Option      "UseEdidDpi" "FALSE"
    Option    "ModeValidation" "NoEdidDFPMaxSizeCheck, NoVesaModes"
EndSection


where the last three lines are supposed to get your monitor rcognised as a 1024by768.
NoLogo just stops nvidia logo from displaying and "DPMS" is for screen saving. YES, this release of nvidia drivers know how to turn your toshiba's backlight off ! fantastic... I frankly don't know what "SWCursor" , but i dare not remove it.

So if you set up your satellite 1410 like this,  it will work, at least mine does...

Ursvik

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Ursvik

"In the end, to achieve happiness,  all you need to know is the url to the latest Zenwalk ISO. "


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