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Old 08-19-03, 01:48 PM   #1
bevinsns
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Default 3840x2400 resolution with RedHat 9

I am trying to use a Viewsonic vp2290b LCD with Redhat 9. The monitor runs at 3840x2400, but I cannot get Xfree86 to use that resoultion. The setup that I am trying to use is a twinview on one monitor, each output running at 1920x2400. I am able to get 1600x1200 to run in twinview, but the odd resolution won't work.

I am looking for someone who has gotten a Viewsonic vp2290b, or IBM T221 to work with linux. Or if someone knows how to make Xfree86 use an unorthodox resolution like 1920x2400.

Nate
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Old 08-19-03, 05:53 PM   #2
mtrr
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AFAIK only standard modes are known to X, so you'd have to
build a modeline on your own, look at freshmeat for
a modeline calculator or "man XF86Config-4"



cheers
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Old 08-20-03, 07:39 AM   #3
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First I'd like to know what videocard you are using. Only some recent QuadroFX cards can do insane high resolutions. If I'm right all nvidia cards except for some QuadroFX models are limited to 2048x1536. So first make sure you card can handle that resolution. If that's the case you need to play with modelines.
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Old 08-20-03, 10:58 AM   #4
bevinsns
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The Video card is a Quadro FX 1000. I found a modline that appears to be correct. but it does not help. I might be using it incorrectly though.

ModeLine "1920x2400@25" 125 1920 1928 1980 2048 2400 2401 2403 2434 +hsync +vsync
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Old 08-20-03, 12:05 PM   #5
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You need to use this modeline in combination with twinview. Your metamode(s) would look like this for example:
Option "MetaModes" "1920x2400@25, 1920x2400@25"
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Old 08-20-03, 12:18 PM   #6
bevinsns
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This is the XF86Config File I tried with no success. I have removed the comments for a more concise read.

Section "ServerLayout"
Identifier "XFree86 Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
FontPath "unix/:7100"
EndSection

Section "Module"

infrastructure
Load "dbe" # Double-buffering
Load "glx" # OpenGL X protocol interface
Load "extmod" # Misc. required extensions
Load "v4l" # Video4Linux
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "keyboard"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Device" "/dev/mouse"
Option "Protocol" "PS/2"
Option "Emulate3Buttons" "off"
Option "ZAxisMapping" "4 5"
EndSection

Section "Monitor"
Identifier "DPro 2070SB"
VendorName "Unknown"
ModelName "Unknown"
#DisplaySize 238 296
HorizSync 61.2
VertRefresh 25.1
Option "dpms"
#1920x2400 @ 25Hz for IBM T221, VS VP2290 and compatible display devices
ModeLine "1920x2400@25" 125 1920 1928 1980 2048 2400 2401 2403 2434 +hsync +vsync

EndSection

Section "Device"
Identifier "NVIDIA GeForce Quadro FX"
Driver "nvidia"
BoardName "Unknown"
Option "IgnoreEDID" "true"
Option "ConnectedMonitor" "DFP,DFP"
Option "SecondMonitorHorizSync" "61.2"
Option "SecondMonitorVertRefresh" "25.1"
Option "MetaModes" "1920x2400@25,1920x2400@25"
Option "TwinView"
EndSection

Section "Device"
Identifier "Linux Frame Buffer"
Driver "fbdev"
BoardName "Unknown"
EndSection

Section "Screen"
Identifier "Screen0"
Device "NVIDIA GeForce Quadro FX"
Monitor "DPro 2070SB"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1920x2400@25" "1600x1200" "1400x1050" "1280x1024" "1280x960" "1152x864"
"1024x768" "800x600" "640x480"
Virtual 3840 2400
EndSubSection
EndSection

Section "DRI"
Mode 0666
EndSection
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Old 08-20-03, 12:35 PM   #7
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It looks quite ok to me. Only the viewport line is not really needed I think for the rest I don't see any problem if the modeline really is correct. Something else does 1920x2400 work if you use just half the screen? I think the refresh rates you gave might cause problems. Also check the xfree86 log file which is useally in /var/log.
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Old 09-05-03, 06:00 AM   #8
R_uk
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Acquired from my friends in IBM.

Try the following.

In ServerLayout ensure screen is defined:

Section "ServerLayout"
Identifier "New version"
Screen 0 "Screen0" 0 0

In 'Module' comment out GLcore, dri

Section "Module"
# Load "GLcore"
Load "dbe"
Load "glx"
Load "extmod"
Load "fbdevhw"
# Load "dri"
Load "record"
Load "freetype"
Load "type1"

For operation in 20Hz with both DVI monitor inputs attached, the card is used in twin view mode: (the mode statement 3840 x 2400 is ignored when twinview is active but is left in for reference)

Section "Monitor"
Identifier "Monitor0"
VendorName "IBM"
ModelName "T221"
HorizSync 31.5-99.0
VertRefresh 19-62


Modeline "1920x2400" 100.00 1920 1956 1996 2048 2400 2402 2404 2434 +HSync +VSync

EndSection

Section "Device"

Option "IgnoreEDID" "yes"
Option "ConnectMonitor" "DFP"
Identifier "900XGL"
Driver "nvidia"
VendorName "nVidia900XGL"
BoardName "900XGL"
Option "TwinView"
Option "SecondMonitorHorizSync" "31.5-99"
Option "SecondMonitorVertRefresh" "19-62"
Option "MetaModes" "1920x2400,1920x2400"
Option "FlatPanelProperties" "Scaling=native,Dithering=disabled"
Option "TwinViewOrientation" "RightOf"
BusID "PCI:1:0:0"
EndSection


Section "Screen"
Identifier "Screen0"
Device "900XGL"
Monitor "Monitor0"
DefaultDepth 24

Subsection "Display"
Depth 24
Modes "3840x2400"
EndSubsection

EndSection

Section "DRI"
Mode 0666
EndSection


Let me know if that helps...

R.
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