 | | | ghosting on LCD flatpanel through KVM switch | ghosting on LCD flatpanel through KVM switch 2004-02-25 - By Rick von Richter
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If you ever find an optimal KVM please let me know because I have looked
high and low and can't find one. I use a 24" Sun LCD and the biggest
beef is the KVM won't support the right frequency at higher resolutions.
The second is that the KVM won't properly transmit the video identifier
signals to the OS so Linux says something like "I have no idea what
display you have". Same goes for Solaris or WinCrap.
IF everything is perfect when the display is directly connected to the
computer then make sure the video cable is lying in the same physical
spot as when it is connected to the KVM (i.e. don't lay it next to a
bunch of power cables when you connect it to the KVM). If all that is
OK then I know Black Box has an in-line video sequencer (I think
sequencer is the correct name, not sure). Anyways, it goes in-line on
your video cable and you can tweak all sorts of video signals to get
desired effects. Don't know it will help your sit.
As fas a KVMs go I've always used Cybex (now called Avocent). They seem
to have the better products. But when the whole industry product (KVMs)
in general are less then optimal that is not quite a grand distinction.
Plus, they cost more than most. Sigh...
HTH, HAND
Blaise Canzian wrote:
> Has anyone experienced sub-optimal display on a Sony Viewsonic 18" LCD
> flatpanel through a KVM switch? The KVM switch I have is pretty
> cheap. The fonts are ghosted, although the redhat-config-xfree86
> finds the monitor correctly.
>
> BTW, I have the resolution configured to match the LCD display's
> native resolution, this is definitely a KVM-related problem, not
> something else (i.e., display is perfect if the video feed from the
> nVidia GeForce2 card on a VGA cable goes directly to the display and
> not through the KVM switch). Oh, I'm running VGA not DVI.
>
> Thanks.
>
> -- Blaise Canzian
>
>
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rick von Richter IS Production Support Manager Voice: 858-831-2222
rickv@(protected) Maintenance Warehouse/Home Depot Fax: 858-831-2221
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The box says: Win98, WinNT or BETTER. That's why I installed Linux.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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<tt>If you ever find an optimal KVM please let me know because I have
looked high and low and can't find one. I use a 24" Sun LCD and the
biggest beef is the KVM won't support the right frequency at higher
resolutions. The second is that the KVM won't properly transmit the
video identifier signals to the OS so Linux says something like "I have
no idea what display you have". Same goes for Solaris or WinCrap.<br>
IF everything is perfect when the display is directly connected to the
computer then make sure the video cable is lying in the same physical
spot as when it is connected to the KVM (i.e. don't lay it next to a
bunch of power cables when you connect it to the KVM). If all that is
OK then I know Black Box has an in-line video sequencer (I think
sequencer is the correct name, not sure). Anyways, it goes in-line on
your video cable and you can tweak all sorts of video signals to get
desired effects. Don't know it will help your sit.<br>
As fas a KVMs go I've always used Cybex (now called Avocent). They
seem to have the better products. But when the whole industry product
(KVMs) in general are less then optimal that is not quite a grand
distinction. Plus, they cost more than most. Sigh...<br>
<br>
HTH, HAND<br>
</tt><br>
Blaise Canzian wrote:<br>
<blockquote cite="mid4034FF20.40602@(protected)" type="cite">Has
anyone experienced sub-optimal display on a Sony Viewsonic 18" LCD
flatpanel through a KVM switch? The KVM switch I have is pretty cheap.
The fonts are ghosted, although the redhat-config-xfree86 finds the
monitor correctly.
<br>
<br>
BTW, I have the resolution configured to match the LCD display's native
resolution, this is definitely a KVM-related problem, not something
else (i.e., display is perfect if the video feed from the nVidia
GeForce2 card on a VGA cable goes directly to the display and not
through the KVM switch). Oh, I'm running VGA not DVI.
<br>
<br>
Thanks.
<br>
<br>
-- Blaise Canzian
<br>
<br>
<br>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rick von Richter IS Production Support Manager Voice: 858-831-2222
<a class="moz-txt-link-abbreviated" href="mailto:rickv@(protected)">rickv@(protected)<
/a> Maintenance Warehouse/Home Depot Fax: 858-831-2221
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The box says: Win98, WinNT or BETTER. That's why I installed Linux.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</pre>
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