Re: Problem with new monitor
From: Jeff Vian (jvian10_at_charter.net)
Date: 10/15/05
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- In reply to: Paul Smith: "Re: Problem with new monitor"
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To: For users of Fedora Core releases <fedora-list@redhat.com> Date: Fri, 14 Oct 2005 17:42:22 -0500
On Fri, 2005-10-14 at 22:39 +0100, Paul Smith wrote:
> On 10/14/05, jludwig <wralphie@comcast.net> wrote:
> > > > I have just bought a new monitor (a LCD one), but when FC4 starts, I
> > > > get a message:
> > > >
> > > > "No support"
> > > >
> > > > and nothing happens after that. How can I solve this problem.
> > > > Curiously, with my MS Windows partition, there is no problem.
> > >
> > > I have tried to boot in text mode and run
> > >
> > > system-config-display --reconfig
> > >
> > > but no success.
> > >
> > > Any further ideas?
> > >
> > The reason your monitor is going blank is because it can't use the frequencies
> > that the video card is putting out. To protect itself it turns off.
> >
> > If you know the sweep frequencies of the monitor and the resolution you will
> > be using, edit these sections of /etc/X11/xorg.conf (these are mine for a
> > sample) and enter the numbers into your file;
> > Section "Monitor"
> > Identifier "Monitor0"
> > VendorName "Digital Electronics"
> > ModelName "Digital 21 in. Color (FR-PCXAV-WZ)"
> > HorizSync 30.0 - 85.0
> > VertRefresh 50.0 - 120.0
> > Option "dpms"
> > EndSection
> >
> > Section "Screen"
> > Identifier "Screen0"
> > Device "Videocard0"
> > Monitor "Monitor0"
> > DefaultDepth 24
> > SubSection "Display"
> > Viewport 0 0
> > Depth 16
> > Modes "800x600" "640x480"
> > EndSubSection
> > SubSection "Display"
> > Viewport 0 0
> > Depth 24
> > Modes "1280x1024" "1280x960" "1152x864" "1024x768"
> > "800x600" "640x480"
> > EndSubSection
> > EndSection
>
> Thanks, jludwig. The problem was solved in the following way:
>
> * connected the old CRT monitor;
> * on FC4, I changed the resolution to 1024x768;
> * did shutdown;
> * started FC4 again.
>
My new LCD would not support a VertRefresh of > 60.0 at maximum
resolution. I simply edited that line in the Monitor section of
xorg.conf and set the range to 60.0 - 60.0, and I was then able to use
the monitor resolution of 1600x1200 with no problems.
> Paul
>
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