[CentOS] Completely lost X (was system-config-display wrongly sets up Viewsonic VG730m monitor)

[Anne Wilson]

On Tuesday 19 February 2008 13:02:31 Johnny Hughes wrote:
> Anne Wilson wrote:
>
> <snip>
>
> >  ### Comment all HorizSync and VertSync values to use DDC:
> >         Identifier   "Monitor0"
> >         ModelName    "Monitor 1280x1024"
> >  ### Comment all HorizSync and VertSync values to use DDC:
> >         HorizSync    60.0 - 72.0
> >         VertRefresh  60.0 - 72.0
> >         Option      "dpms"
> > EndSection
> >
> > Section "Device"
> >         Identifier  "Videocard0"
> >         Driver      "nv"
> > EndSection
> >
> > Section "Screen"
> >         Identifier "Screen0"
> >         Device     "Videocard0"
> >         Monitor    "Monitor0"
> >         DefaultDepth     16
> >         SubSection "Display"
> >                 Viewport   0 0
> >                 Depth     24
> >         EndSubSection
> >         SubSection "Display"
> >                 Viewport   0 0
> >                 Depth     16
> >         EndSubSection
> > EndSection
>
> try this:
> #
>    ### Comment all HorizSync and VertSync values to use DDC:
>           Identifier   "Monitor0"
>           ModelName    "Monitor 1280x1024"
>    ### Comment all HorizSync and VertSync values to use DDC:
>           HorizSync    30.0 - 82.0
>           VertRefresh  56.0 - 75.0
>           Option      "dpms"
> EndSection
>
> Section "Device"
>           Identifier  "Videocard0"
>           Driver      "nv"
> EndSection
>
> Section "Screen"
>           Identifier "Screen0"
>           Device     "Videocard0"
>           Monitor    "Monitor0"
>           DefaultDepth     16
>      SubSection     "Display"
>          Viewport    0 0
>          Depth       24
>          Modes      "1280x1024" "1280x960" "1280x800" "1152x864"
> "1152x768" "1024x768" "800x600" "640x480"
>      EndSubSection
>      SubSection     "Display"
>          Viewport    0 0
>          Depth       16
>          Modes      "1280x1024" "1280x960" "1280x800" "1152x864"
> "1152x768" "1024x768" "800x600" "640x480"
>      EndSubSection
> EndSection
> #
>
> (the "modes" lines will wrap ... but all the resolutions should be all
> on one line, separated by spaces and inside quotes)
>
> Also, if "DefaultDepth 16" does not work, try "DefaultDepth 24"
>
> You say that you bought a digital lead ... meaning I guess that you are
> using a different PORT on your video card and monitor.  It is possible
> that he standard "nv" driver does not support that port on your video
> card and that you will need to instead download the proprietary drivers
> from nvidia's website to get that port to function.  Regardless of which
> driver and cable you use, the resolution/freq of the screen is going to
> be the same ... why not just use the old cable :D
>
Johnny, this afternoon I got around to putting the old cable back in, only to 
find that I can't get X correctly configured again.  I have no X.  I managed 
to get to a text screen and vi xorg.conf, putting in exactly what you 
recommended above (maybe that was for digital, not analogue?).  I still can't 
startx.  I see

(==) Using config file: "/etc/X11/xorg.conf"
(EE) NV(0): No valid initial configuration found
(EE) Screen(s) found, but none have a usable configuration.

Fatal server error:
no screens found
XIO: fatal IO error 104 (Connection reset by peer) on X server ":0.0"
     after 0 requests (0 known processed) with 0 events remaining.

Can you recommend a really basic xorg.conf to get me started?  Thanks

Anne


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