Samsung 712N and xorg.conf

[Jerry Davis]

On Sunday 09 December 2007 10:35, Matt Graham wrote:
> From: Jerry Davis <jdawgaz at cox.net>
>
> > On Sunday 09 December 2007 08:48, Matt Graham wrote:
> > > From: Jerry Davis <jdawgaz at cox.net>
> > >
> >>> I am trying to get my Dad's computer working with his Samsung
> >>> SyncMaster 712N, and am having some trouble.
> >>> Samsung SyncMaster 712N
> >>> HorizSync 31.5 - 48.5
> >>> VertRefresh 40.0 -70.0
> >>
> >> Are those accurate?  LCDs may need higher ranges for these than the
>
> monitor
>
> >> can actually do, because LCDs don't *have* Hsync and Vsync
> >
> > don't really know. my Dad just emailed me, that he got it to work at
> > 800x600
> >
> > and he can see the full screen now.
> > how is the resolution in X11 tied to the sync and refresh rates? could
> > bad values make the "native" resolution not be possible?
>
> "Native" should not be in quotes here.  Unlike CRTs, LCDs have one and only
> one
> optimal resolution; the resolution that exactly corresponds to the number
> of pixels they have.  X is very conservative wrt sync rates, and if you
> take a look at /var/log/Xorg.0.log, you might see a line like "Mode
> 1280x1024 discarded due to inadequate Hsync".  I have an LG
> something-or-other LCD that's
> 1280x1024, and all normal Modes work fine.  (Doublescan modes = barf, but I
> don't really need anything below 640x480.)  Hsync is 30-95, Vsync is
> 55-160. Those numbers were copied directly from my old CRT.
>
> >>> Modes "1024x768" "800x600" "720x400" "648x480"
> >>
> >> Google says the Samsung 712N has a native resolution of 1280x1024.  So
>
> edit
>
> >> xorg.conf and add that Mode to the Modes line, then restart X.
>
> Did he do this, or not?
>

yes he did, and he got a startup error on X
so I told him to leave the Modes line completely out, and try to see what is 
Autodetected, and up came 800x600 which he says he is content to be in.


>
>
> ---------------------------------------------------
> PLUG-discuss mailing list - PLUG-discuss at lists.plug.phoenix.az.us
> To subscribe, unsubscribe, or to change your mail settings:
> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss

-- 
Happy Trails!
Jerry
 
KE7JVW
Hobbit Name: Pimpernel Loamsdown
Registered Linux User: 275424
 
This email's random fortune: 
Q:	Who cuts the grass on Walton's Mountain?
A:	Lawn Boy.