problem using riva128 with flatpanel monitor

[aedolbey]

I have a Micron PC that uses a NVidia/SGS-Thomson Riva128 (rev 34) graphics card. The PC is running RedHat 7.2. I have used this machine successfully for 2 years with a Dell Trinitron monitor. However, I just upgraded to a Dell E173FP FlatPanel monitor, and after many hours of configuration attempts, I still can't get XWindows to load. I get this error message on an otherwise black panel:

"Cannot Display This Video Mode"

I know that Riva128 does not accept 16 bit modes, so I was sure to only allow for 24 bit modes when I used Xconfigurator. I have also tried adding "Option FlatPanel" to the XF86Config-4 RIVA128 Device section. But I'm still gettig the same error message. I don't see any error indication in the XFree86.0 log file (which is too long to include here).

I know the monitor itself has no problems, as it works fine when I hook it up to a box running WindowsXP.

I'm including below the XF86Config-4 file that was generated with Xconfigurator (with the manual addition of `Option "FlatPanel"'). Xconfigurator also generates a XF86Config file (in addition to the XF86Config-4 file), but I have taken this file away from the /etc/X11/ directory. I had previously tried including this file, but the X system didn't work with it in place either. What's more, I did not have that file in place when I successfully used my previous monitor, the Dell Trinitron.

If anyone had any idea what could be going wrong here, please let me know! This has been (and still is) an incredibly frustrating scenario.

Andy


[XF86Config-4]
# XFree86 4.0 configuration generated by Xconfigurator

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

# By default, Red Hat Linux 6.0 and later use xfs

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

# Module loading section

Section "Module"
Load "dbe" # Double-buffering
Load "GLcore" # OpenGL support
Load "dri" # Direct rendering infrastructure
Load "glx" # OpenGL X protocol interface
Load "extmod" # Misc. required extensions
Load "v4l" # Video4Linux
# Load "pex5" # PHIGS for X 3D environment (obsolete)
# Load "record" # X event recorder
# Load "xie" # X Image Extension (obsolete)
# You only need the following two modules if you do not use xfs.
# Load "freetype" # TrueType font handler
# Load "type1" # Adobe Type 1 font handler
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 "DELL E173FP"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 31 - 80
VertRefresh 56 - 75
Option "dpms"
EndSection

Section "Device"
Identifier "RIVA128"
Driver "nv"
Option "FlatPanel"
BoardName "Unknown"
EndSection

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

Section "Screen"
Identifier "Screen0"
Device "RIVA128"
Monitor "DELL E173FP"
DefaultDepth 24
Subsection "Display"
Depth 24
Modes "1024x768"
EndSubSection
EndSection

Section "DRI"
Mode 0666
EndSection

[aedolbey]

I've attached the log file for the problem I reported here. I hadn't noticed the ability to attach longer files.

Andy

[nholling]

I might be pointing out the obvious but...

Your configurations shows you are using the nv driver. This is the driver shipped with the X server. In order to use Nvidia's binary driver you must install the binary driver from www.nvidia.com and change the line in your XF86Config-4 file from:

Driver "nv"

to

Driver "nvidia"

[melevittfl]

Originally Posted by aedolbey

I've attached the log file for the problem I reported here. I hadn't noticed the ability to attach longer files.

Andy

First, your posting in a forum for the Nvidia-supplied Nvidia driver, however, your configuration file and XFree log show that you're using the open source NV driver from the XFree project.

That being said, from the XFree log, it seems that your driver is picking a display mode that your flatpanel does not support. Try re-running the configuration and picking 1024x768 at 60Hz. I suspect your flat panel doesn't like a higher refresh rate than 60Hz and that's the problem.