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JamesSmith
My redhat 9.0 installation went without a hitch. I've got a Dell Inspiron 2650, which what I've read, causes a lot of problems just to get "x" to work. But everything is working fine so far except this.

When I connect my SYS 15" LCD the display is no more than an ugly nintendo error. It lets me probe the monitor type but even with that selected driver, it doesn't work. This is the same as with a CRT

I can't figure out what to do in order to have it work. The connection is fine because during boot the boot loader displays on both monitors fine, and so does all the loading text. It only goes out when the rh9 login screen starts up.

Any ideas, thanks
hughesjr
You are going to need to setup dual monitors, dual screens, (and maybe dual graphics cards) in your /etc/X11/XF86Config file.

It's not a particularly easy thing to do in RH9 ... in Fedora Core 2 (and mandrake 10), it can be done with the standard display setup.

Basically, you need to do the command:

lspci

post anything it says concerning your graphics.

---------------
You will then clone your Monitor and screen section ... here is mine on my firewall server.
CODE
Section "Monitor"
       Identifier   "Monitor0"
       VendorName   "Monitor Vendor"
       ModelName    "DDCPROBED"
       DisplaySize  400        300
       HorizSync    31.0 - 82.0
       VertRefresh  55.0 - 120.0
       Option      "dpms"
EndSection
                                                                               
Section "Device"
       Identifier  "Videocard0"
       Driver      "ati"
       VendorName  "Videocard vendor"
       BoardName   "ATI Mach64"
EndSection

Section "Screen"
       Identifier "Screen0"
       Device     "Videocard0"
       Monitor    "Monitor0"
       DefaultDepth     24
       SubSection "Display"
               Depth     24
               Modes    "1024x768" "800x600" "640x480"
       EndSubSection
EndSection


I would paste each section in just below the original and make the following changes:

CODE
Section "Monitor"
       Identifier   "Monitor0"
       VendorName   "Monitor Vendor"
       ModelName    "DDCPROBED"
       DisplaySize  400        300
       HorizSync    31.0 - 82.0
       VertRefresh  55.0 - 120.0
       Option      "dpms"
EndSection

Section "Monitor"
       Identifier   "Monitor1"
       VendorName   "Monitor Vendor"
       ModelName    "DDCPROBED"
       DisplaySize  400        300
       HorizSync    31.0 - 82.0
       VertRefresh  55.0 - 120.0
       Option      "dpms"
EndSection
                                                                               
Section "Device"
       Identifier  "Videocard0"
       Driver      "ati"
       VendorName  "Videocard vendor"
       BoardName   "ATI Mach64"
EndSection

Section "Device"
       Identifier  "Videocard1"
       Driver      "ati"
       VendorName  "Videocard vendor"
       BoardName   "ATI Mach64"
EndSection

Section "Screen"
       Identifier "Screen0"
       Device     "Videocard0"
       Monitor    "Monitor0"
       DefaultDepth     24
       SubSection "Display"
               Depth     24
               Modes    "1024x768" "800x600" "640x480"
       EndSubSection
EndSection

Section "Screen"
       Identifier "Screen1"
       Device     "Videocard1"
       Monitor    "Monitor1"
       DefaultDepth     24
       SubSection "Display"
               Depth     24
               Modes    "1024x768" "800x600" "640x480"
       EndSubSection
EndSection


You would need to change Monitor 1 to have the values of your add on monitor ... (not my example) ...

You would then need to find the section ... mine looks like this:

CODE
Section "ServerLayout"
       Identifier     "Default Layout"
       Screen      0  "Screen0" 0 0
       InputDevice    "Mouse0" "CorePointer"
       InputDevice    "Keyboard0" "CoreKeyboard"
       InputDevice    "DevInputMice" "AlwaysCore"
EndSection


I would change it to this (to show the same thing on both screens):

CODE
Section "ServerLayout"
       Identifier     "Default Layout"
       Screen      0  "Screen0" 0 0
       Screen      1  "Screen1" 0 0
       InputDevice    "Mouse0" "CorePointer"
       InputDevice    "Keyboard0" "CoreKeyboard"
       InputDevice    "DevInputMice" "AlwaysCore"
EndSection


------------

Make sure you backup your XF86Config file before you start, so you can erase the new one and copy the oldone back into place ... this normally takes a long time to get right.
JamesSmith
Thanks John!

Unfortunately I was unable to get it to work.

Here is the lspci information
...
01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 Go] (rev b2)
...

Nothing useful there.

I changed the XF86Config file as suggested but nothing different happened. Still jibberish on the any connected monitor. I did restart.

One thing I noticed in your instructions was that I would need to use different settings in the second monitor. This wasn't true since I am using the settings for the LCD(SYS...) for the laptop screen and it is working fine. So the settings I am using for the laptop should work on the LCD. But instead it appears the signal is being jarrbled before it is sent to the LCD.

Is there anything I can do to troubleshoot the changes I made?

Thanks again John
hughesjr
I don't have that particular laptop ...

I do have a Panasonic laptop that I can try and install Linux on that has a seperate vga output. (It has XP on it right now and I was going to do a new Linux install on there anyway.

I've done dual headed cards before, but not laptops.

If I find out anything I'll let you know.
JamesSmith
Thanks John
I check the e-mail I registered with regularily
hughesjr
There may be a button that cycles between LCD, LCD/MONITOR, and MONITOR for that laptop ... if you can switch, have you tried all the settings?
JamesSmith
Yes, initially it caused the both monitors to turn into a small portion of gray on black in all 3 settings. It required a reboot to fix so I didn't do it again.
hughesjr
You may need to make sure it is set for both LCD and External Monitor (if it is not, the external monitor won't work properly).
JamesSmith
Right, I've done this by testing from WinXP on the same machine.
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