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-   -   possible to use dual CRT (TwinView) on Gf3 card? (http://www.nvnews.net/vbulletin/showthread.php?t=12835)

TommyTheKid 06-03-03 07:07 PM

possible to use dual CRT (TwinView) on Gf3 card?
1 Attachment(s)
I bought the little $10 DVI-VGA converter to try to run dual heads.. I have a 3d Prophet III - 64MB Video card I think? (see lspci output) .. I was told you could buy the little converter and run dual CRT's but the driver keeps saying I have

(WW) NVIDIA(0): Inappropriate ConnectedMonitor string.

I am running on RedHat 9 if that matters. I am pretty sure this is a GeForce3 card (its old)

[root@invaderzim root]# X -version

XFree86 Version 4.3.0 (Red Hat Linux release: 4.3.0-2)
Release Date: 27 February 2003
X Protocol Version 11, Revision 0, Release 6.6
Build Operating System: Linux 2.4.20-3bigmem i686 [ELF]
Build Date: 27 February 2003
Build Host: porky.devel.redhat.com

Before reporting problems, check http://www.XFree86.Org/
to make sure that you have the latest version.
Module Loader present
OS Kernel: Linux version 2.4.20-13.9 (bhcompile@daffy.perf.redhat.com) (gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)) #1 Mon May 12 11:03:52 EDT 2003 P
[root@invaderzim root]#

(output of lspci -v)

01:00.0 VGA compatible controller: nVidia Corporation NV20 [GeForce3] (rev a3) (prog-if 00 [VGA])
Subsystem: Hercules: Unknown device 0040
Flags: bus master, 66Mhz, medium devsel, latency 248, IRQ 10
Memory at ec000000 (32-bit, non-prefetchable) [size=16M]
Memory at e4000000 (32-bit, prefetchable) [size=64M]
Memory at e8000000 (32-bit, prefetchable) [size=512K]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [60] Power Management version 2
Capabilities: [44] AGP version 2.0

[root@invaderzim root]# cat /etc/X11/XF86Config
# XFree86 4 configuration created by redhat-config-xfree86

Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"

Section "Files"

# RgbPath is the location of the RGB database. Note, this is the name of the
# file minus the extension (like ".txt" or ".db"). There is normally
# no need to change the default.
# Multiple FontPath entries are allowed (they are concatenated together)
# By default, Red Hat 6.0 and later now use a font server independent of
# the X server to render fonts.
RgbPath "/usr/X11R6/lib/X11/rgb"
FontPath "unix/:7100"

Section "Module"
Load "dbe"
Load "extmod"
Load "fbdevhw"
Load "glx"
Load "record"
Load "freetype"
Load "type1"

Section "InputDevice"

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
# Option "Xleds" "1 2 3"
# To disable the XKEYBOARD extension, uncomment XkbDisable.
# Option "XkbDisable"
# To customise the XKB settings to suit your keyboard, modify the
# lines below (which are the defaults). For example, for a non-U.S.
# keyboard, you will probably want to use:
# Option "XkbModel" "pc102"
# If you have a US Microsoft Natural keyboard, you can use:
# Option "XkbModel" "microsoft"
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
# Option "XkbLayout" "de"
# or:
# Option "XkbLayout" "de"
# Option "XkbVariant" "nodeadkeys"
# If you'd like to switch the positions of your capslock and
# control keys, use:
# Option "XkbOptions" "ctrl:swapcaps"
# Or if you just want both to be control, use:
# Option "XkbOptions" "ctrl:nocaps"
Identifier "Keyboard0"
Driver "keyboard"
Option "XkbRules" "xfree86"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "no"

Section "InputDevice"

# If the normal CorePointer mouse is not a USB mouse then
# this input device can be used in AlwaysCore mode to let you
# also use USB mice at the same time.
Identifier "DevInputMice"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "no"

Section "Monitor"
Identifier "Monitor0"
VendorName "SUN0577"
ModelName "GDM-5410"
HorizSync 30-121
VertRefresh 48-160
Option "dpms"

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "Videocard vendor"
BoardName "NVIDIA GeForce 3 (generic)"
Option "TwinView"
Option "SecondMonitorHorizSync" "30.0 - 96.0"
Option "SecondMonitorVertRefresh" "48.0 - 160.0"
Option "MetaModes" "1600x1200,1600x1200; 1280x1024,1280x1024"
Option "ConnectedMonitor" "CRT, CRT"
Option "UseInt10Module" "on"

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 16
Modes "800x600" "640x480"
SubSection "Display"
Depth 24
Modes "1600x1200" "1400x1050" "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"

Section "DRI"
Group 0
Mode 0666

[root@invaderzim root]#



brendan_orr 06-03-03 10:17 PM

As I recall there are different types of DVI-I adapters (2 I believe). There are the cheaper that don't do any digital>analog conversion, and there are the ones that conver digital to analog (which cost about $40). Chances are you have the cheaper one. But like always, is there anybody that can confirm what I said?

Thunderbird 06-04-03 03:12 AM

You are out of luck Geforce3 cards don't support Twinview. You need a Geforce 2MX/4MX/4TI/FX.

undrwater 06-04-03 03:04 PM


Even the readme didn't make this very clear! I've been trying to configure twinview for my GeForce 256...now i know why it doesn't work!

Is nvtv the only other answer to getting tv-out to work for these other cards? Are there noises about building this capability in the driver for the non-MX cards?

Thanks for making this clear, though!

Thunderbird 06-05-03 07:49 AM

For tvout twinview is not needed. To set up tvout without twinview you take a working XF86Config file. Then you let the screen section use a monitor section containing the refresh rates for your TV. After that you add the needed tvout options to the device/screen section (tvsystem, connectedmonitor. ..)

undrwater 06-05-03 09:56 AM

I'll try this, thanks!

I was curious, though...does this allow both monitor and TV to get output, or one at a time?

...also...can the resolution of the TV be different than that of the monitor?

Thanks for your help.

ricercar 06-05-03 12:50 PM

One at a time. Despite being a higher performing GPU, the NV20/GeForce3 apparently has only one DAC, which means it drives only one display at a time.

Andy Mecham 06-05-03 07:23 PM

From the README:

The TwinView feature is only supported on NVIDIA GPUs that support
dual-display functionality, such as the GeForce2 MX, GeForce2 Go,
Quadro2 MXR, Quadro2 Go, and any of the GeForce4 or Quadro4 GPUs.
Please consult with your video card vendor to confirm that TwinView is
supported on your card.


TommyTheKid 06-08-03 12:54 AM

cool, figured it was a limitation of the VidCard
I got it to work easily at home on my GF4 ti4600, but at work I have an old one I got from a friend... Biggest thing that bugs me now, is at home I dont got the room for dual head (not enough desk space).. at work, its a must... do I bring my home computer to work :-p ?? The other thing is, dual head makes using a KVM a little more interesting :p


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