HighDots.NET Computer Hardware Forums  

NVIDIA driver thinks I am still using a CRT monitor with my new LCD monitor?

Monitors / Videocards Video cards & monitors for the PC. (comp.sys.ibm.pc.hardware.video)


Discuss NVIDIA driver thinks I am still using a CRT monitor with my new LCD monitor? in the Monitors / Videocards forum.



Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old   
Ant
 
Posts: n/a

Default NVIDIA driver thinks I am still using a CRT monitor with my new LCD monitor? - 02-06-2007 , 03:24 PM






Hello.

I noticed my latest NVIDIA drivers (both Windows XP and Linux/Debian)
are telling me that I am using a CRT which is untrue. Yes, I installed
the monitor INF driver and removed the OLD Samsung SyncMaster 763 MB CRT
monitor from device manager (hidden).

Someone told me that it is because of my VGA connections (not using DVI
due to my old/2001 Belkin KVM switch (2-ports). I would test the DVI
cable, but the monitor did not come with one (this is normal) nor do I
have one (will have to buy/borrow one).

Is this a normal behavior? Thank you in advance.
--
"When many work together for a goal, great things may be accomplished. It is said a lion cub was killed by a single colony of ants." --Saskya Pandita
/\___/\
/ /\ /\ \ Ant @ http://antfarm.ma.cx (Personal Web Site)
Quote:
|o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
\ _ / Please remove ANT if replying by e-mail.
( )


Reply With Quote
  #2  
Old   
Ant
 
Posts: n/a

Default Re: NVIDIA driver thinks I am still using a CRT monitor with my new LCD monitor? - 02-06-2007 , 05:38 PM






Quote:
I noticed my latest NVIDIA drivers (both Windows XP and Linux/Debian)
are telling me that I am using a CRT which is untrue. Yes, I installed
the monitor INF driver and removed the OLD Samsung SyncMaster 763 MB CRT
monitor from device manager (hidden).

Someone told me that it is because of my VGA connections (not using DVI
due to my old/2001 Belkin KVM switch (2-ports). I would test the DVI
cable, but the monitor did not come with one (this is normal) nor do I
have one (will have to buy/borrow one).

The problem is most likely that the drivers can't see the display's EDID
information, and therefore cannot identify the display model or type.
This may be due to that information not making it through your KVM
switch - does it occur when you have a direct connection between
the monitor and the PC? If so, then it may be that the display does
not correctly identify itself in its EDID.
Thanks Bob. I will try that. KVM is old (from 2000). Do I assume its
detection should work with a direct VGA connection? Or do I need DVI for
that to work?
--
"When many work together for a goal, great things may be accomplished. It is said a lion cub was killed by a single colony of ants." --Saskya Pandita
/\___/\
/ /\ /\ \ Ant @ http://antfarm.ma.cx (Personal Web Site)
Quote:
|o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
\ _ / Please remove ANT if replying by e-mail.
( )


Reply With Quote
  #3  
Old   
Bob Myers
 
Posts: n/a

Default Re: NVIDIA driver thinks I am still using a CRT monitor with my new LCD monitor? - 02-06-2007 , 05:56 PM




"Ant" <ANTant (AT) zimage (DOT) com> wrote

Quote:
Hello.

I noticed my latest NVIDIA drivers (both Windows XP and Linux/Debian)
are telling me that I am using a CRT which is untrue. Yes, I installed
the monitor INF driver and removed the OLD Samsung SyncMaster 763 MB CRT
monitor from device manager (hidden).

Someone told me that it is because of my VGA connections (not using DVI
due to my old/2001 Belkin KVM switch (2-ports). I would test the DVI
cable, but the monitor did not come with one (this is normal) nor do I
have one (will have to buy/borrow one).
The problem is most likely that the drivers can't see the display's EDID
information, and therefore cannot identify the display model or type.
This may be due to that information not making it through your KVM
switch - does it occur when you have a direct connection between
the monitor and the PC? If so, then it may be that the display does
not correctly identify itself in its EDID.

Bob M.




Reply With Quote
  #4  
Old   
Bob Myers
 
Posts: n/a

Default Re: NVIDIA driver thinks I am still using a CRT monitor with my new LCD monitor? - 02-06-2007 , 07:32 PM




"Ant" <ANTant (AT) zimage (DOT) com> wrote

Quote:
The problem is most likely that the drivers can't see the display's EDID
information, and therefore cannot identify the display model or type.
This may be due to that information not making it through your KVM
switch - does it occur when you have a direct connection between
the monitor and the PC? If so, then it may be that the display does
not correctly identify itself in its EDID.

Thanks Bob. I will try that. KVM is old (from 2000). Do I assume its
detection should work with a direct VGA connection? Or do I need DVI for
that to work?
Both VGA and DVI connections support reading the monitor EDID
information, if the monitor is providing the correct EDID in the first
place.
But it may not be getting through the KVM.

Bob M.




Reply With Quote
  #5  
Old   
Ant
 
Posts: n/a

Default Re: NVIDIA driver thinks I am still using a CRT monitor with my new LCD monitor? - 02-06-2007 , 07:42 PM



Bob Myers <nospamplease (AT) address (DOT) invalid> wrote:

Quote:
"Ant" <ANTant (AT) zimage (DOT) com> wrote in message
news:86mdnfIIR5DonlTYnZ2dnUVZ_oninZ2d (AT) mminternet (DOT) net...
The problem is most likely that the drivers can't see the display's EDID
information, and therefore cannot identify the display model or type.
This may be due to that information not making it through your KVM
switch - does it occur when you have a direct connection between
the monitor and the PC? If so, then it may be that the display does
not correctly identify itself in its EDID.

Thanks Bob. I will try that. KVM is old (from 2000). Do I assume its
detection should work with a direct VGA connection? Or do I need DVI for
that to work?

Both VGA and DVI connections support reading the monitor EDID
information, if the monitor is providing the correct EDID in the first
place.
But it may not be getting through the KVM.
Just wondering. Do newer KVMs have these EDID reading support?
--
"When many work together for a goal, great things may be accomplished. It is said a lion cub was killed by a single colony of ants." --Saskya Pandita
/\___/\
/ /\ /\ \ Ant @ http://antfarm.ma.cx (Personal Web Site)
Quote:
|o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
\ _ / Please remove ANT if replying by e-mail.
( )


Reply With Quote
  #6  
Old   
Bob Myers
 
Posts: n/a

Default Re: NVIDIA driver thinks I am still using a CRT monitor with my new LCD monitor? - 02-07-2007 , 03:09 PM




"Ant" <ANTant (AT) zimage (DOT) com> wrote


Quote:
Just wondering. Do newer KVMs have these EDID reading support?
--
They certainly can, but I can't speak for any particular model. Having
support for EDID reads basically means having a couple of lines connected
properly through the switch. One problem with a switched VGA setup,
though, is that there is often no mechanism for detecting when the
switch has been thrown after boot-up. In other words, you might be
able to read the EDID for whatever monitor is connected at the time the
PC boots - but if you switch to a different monitor after that point,
there's
nothing that triggers a read of the EDID for this second monitor, and the
system goes merrily along its way using the original information.

Bob M.




Reply With Quote
  #7  
Old   
Ant
 
Posts: n/a

Default Re: NVIDIA driver thinks I am still using a CRT monitor with my new LCD monitor? - 02-08-2007 , 10:57 AM



Bob Myers <nospamplease (AT) address (DOT) invalid> wrote:

Quote:
"Ant" <ANTant (AT) zimage (DOT) com> wrote in message
news:8JadnUW4L-UYvVTYnZ2dnUVZ_sPinZ2d (AT) mminternet (DOT) net...


Just wondering. Do newer KVMs have these EDID reading support?
--

They certainly can, but I can't speak for any particular model. Having
support for EDID reads basically means having a couple of lines connected
properly through the switch. One problem with a switched VGA setup,
though, is that there is often no mechanism for detecting when the
switch has been thrown after boot-up. In other words, you might be
able to read the EDID for whatever monitor is connected at the time the
PC boots - but if you switch to a different monitor after that point,
there's
nothing that triggers a read of the EDID for this second monitor, and the
system goes merrily along its way using the original information.
Interesting. So, DVI-based KVMs don't have this problem. Hmm.
--
"When many work together for a goal, great things may be accomplished. It is said a lion cub was killed by a single colony of ants." --Saskya Pandita
/\___/\
/ /\ /\ \ Ant @ http://antfarm.ma.cx (Personal Web Site)
Quote:
|o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
\ _ / Please remove ANT if replying by e-mail.
( )


Reply With Quote
Reply




Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.