Re: FC4 + SyncMaster 171S + intel 815 card problems

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> > > I've just replaced my monitor to a SyncMaster 171S LCD one and upgraded 
> > > my box to FC4.
> > > Although it is properly detected it does not work well. If I am to use 
> > > the 1280x1024 resolution, which is the standard for this monitor, I have 
> > > the picture fiting perfectly but I also have vertical lines as it seems 
> > > the frequency is not ok. Well, the monitor is 1280x1024 at 60Hz with 
> > > horizontal frequency of 30-81 KHz and Vertical frequency of 56~76 Hz. 
> > > I've tried to mess with X config file as well but I still have the same 
> > > problem. If I try a better resolution say 1400x1050 the lines are no 
> > > longer there but the monitor image does not fit the screen verticaly and 
> > > there is no way on this monitor to change the vertical size, only the 
> > > horizontal.
> > > I have another computer, a Presario 6000, with the same SyncMaster 171S 
> > > monitor and a S3 ProSavage KM133 chip. It works perfectly with 1280x1024 
> > > and the setup FC4 automaticaly chosen for it.
> > > 
> > > What shall I do with the i815 video card machine? Any ideas other than 
> > > putting another card?
> > >     
> > 
> > I had a similar experience. I solved the problem by
> > editing /etc/X11/xorg.conf. In the section "Screen" you can define:
> >         DefaultDepth     16
> >         SubSection "Display"
> >                 Viewport   0 0
> >                 Depth     16
> >                 Modes    "1280x1024" "1280x960" "1152x864" "1024x768"
> > "800x600" "640x480"
> >         EndSubSection
> > 
> > Remark: the Modes-line should be on one line!
> > 
> > Hope this solves your problem.
> > 
> > Cheers,
> > Aad
> > 
> >   
On Wed, 2005-06-29 at 13:59 -0600, C.F. Scheidecker Antunes wrote:
> Aad,
> 
> Thanks a bunch! 
> I appreciate that!
> However I have 24 bits of depth, using 16 bits I will have less color
> resolution, right? I will give it a try!
> cheers,
> C.F.

Yes, you will have less color resolution, but 16 bit is not too bad for
a desktop... If that is not good enough for you, then you could try to
reduce the vertical refresh rate of the monitor to 60 Hz
in /etc/X11/xorg.conf (if you did not already do that). In Section
"Monitor" you have to add (or change) the line:
        VertRefresh  60.0 - 60.0

Success.

Aad


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