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[OT] dual monitors with KVM switch

This is a discussion on [OT] dual monitors with KVM switch within the Slackware Linux Support forums, part of the Unix Operating Systems category; --> This might seem like a stupid question but today I decided to try out having 2 monitors with my ...


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  #1 (permalink)  
Old 02-19-2008, 10:33 AM
Scott Eberl
 
Posts: n/a
Default [OT] dual monitors with KVM switch

This might seem like a stupid question but today I decided
to try out having 2 monitors with my win2k box. I know win2k
sucks but it is the same issue with my linux box also. I have
a 2 port KVM switch between my win2k box and linux box. The ATI
7500 Radeon supports 2 monitors with a dvi => vga adapter but it
dawned on me that the KVM might cause some issues. When I switch
over to the linux box will the secondary monitor on win2k keep
getting a signal? I guess what I'm asking before I just set this
all up to see what it does is has anybody run into this confiuration?

I'm thinking KVM=no dual monitors and I don't think ther are KVM
switches that are going to support duel monitors.

--
If a man speaks in the woods, and
there is no woman there to hear him,
is he still wrong?



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  #2 (permalink)  
Old 02-19-2008, 10:33 AM
/dev/rob0
 
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Default Re: [OT] dual monitors with KVM switch

On Mon, 12 Apr 2004 19:01:26 -0500, Scott Eberl wrote:
> This might seem like a stupid question but today I decided
> to try out having 2 monitors with my win2k box. I know win2k


It might be a better question if you were more explicit. I can't
tell from your post how you were setting these up.

> sucks but it is the same issue with my linux box also. I have
> a 2 port KVM switch between my win2k box and linux box. The ATI
> 7500 Radeon supports 2 monitors with a dvi => vga adapter but it
> dawned on me that the KVM might cause some issues. When I switch


FWIW I did have "issues" with a Radeon 7500 on a KVM. That is, with one
monitor shared on the KVM: only one port on the Radeon was connected. I
had quite a time trying to get X working. Perhaps it was because the
switch was set to the other computer when the driver initialised. I
never really figured it out. It just started working. It works now (and
the KVM is gone.)

> over to the linux box will the secondary monitor on win2k keep
> getting a signal? I guess what I'm asking before I just set this
> all up to see what it does is has anybody run into this confiuration?


Hmmm, I think I'm figuring this out. You are sharing a monitor between
Win2K and Linux, and in addition the Win2K has a second monitor. Right?

It depends on the driver. If it maintains each "head" as a separate
display, independent of the other, I wouldn't think the loss of a
connection on one head would affect the other head.

If I'm wrong, try swapping the connections on the Radeon: put the
shared monitor on the secondary head and the dedicated monitor on the
primary head.
--
/dev/rob0 - preferred_email=i$((28*28+28))@softhome.net
or put "not-spam" or "/dev/rob0" in Subject header to reply

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  #3 (permalink)  
Old 02-19-2008, 10:33 AM
Scott Eberl
 
Posts: n/a
Default Re: [OT] dual monitors with KVM switch


"/dev/rob0" <rob0@gmx.co.uk> wrote in message >
> Hmmm, I think I'm figuring this out. You are sharing a monitor between
> Win2K and Linux, and in addition the Win2K has a second monitor. Right?
>
> It depends on the driver. If it maintains each "head" as a separate
> display, independent of the other, I wouldn't think the loss of a
> connection on one head would affect the other head.
>
> If I'm wrong, try swapping the connections on the Radeon: put the
> shared monitor on the secondary head and the dedicated monitor on the
> primary head.
> --
> /dev/rob0 - preferred_email=i$((28*28+28))@softhome.net
> or put "not-spam" or "/dev/rob0" in Subject header to reply


Yes you are understanding it. 1 17" KDS shared between linux
and win2k. The win2k has radeon 7500 with dual head support. I
guess I'll just give it a try tonight You mentioned you had
issues with KVM and Radeon 7500, weird I never had an issue but
perhaps the KVM model was variable.


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  #4 (permalink)  
Old 02-19-2008, 10:33 AM
Alan Hicks
 
Posts: n/a
Default Re: [OT] dual monitors with KVM switch

In alt.os.linux.slackware, Scott Eberl dared to utter,
> I'm thinking KVM=no dual monitors and I don't think ther are KVM
> switches that are going to support duel monitors.


Think again. My coworker has this working on his machine. Granted he's
using an NVIDIA card, but it can be done. The Windows machine just
still gets a feed on one monitor.

--
It is better to hear the rebuke of the wise,
Than for a man to hear the song of fools.
Ecclesiastes 7:5
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