Xorg hates my dell LCD Monitor

kraven morehead · 04-06-2005, 01:39 PM

Well,
I have tried every monitor from generic 1280x1024 @ 60 and 74 hertz,
used both the analog and digital driver for the actual monitor I have (dell fp1901)
and for some reason I can't run the resolution test and have it work at 24 bit color. Its all out of synch.
at 16 bit its fine, and if i leave it at 24bit and log out of x and go back in, i can hit crtl alt - then + and it will stay at 24bit.
the problem is that it wont just initialize it on its own.

any one ever see this?

my vid card is an intel onboard, (i845).

Thanks.

itsjustme · 04-07-2005, 10:27 PM

You probably need to get the horizontal and vertical resolutions for that monitor and edit your /etc/X11/xorg.conf file with those values.
I had to do that with a Dell Inspiron 8200 once, and I found some seemingly weird numbers for that, but they worked and gave me my native resolution for that monitor.

Maybe look around in here:http://www.linux-on-laptops.com/dell.html

kraven morehead · 04-08-2005, 08:26 AM

Yeah I tried to manually enter the custom resolutions etc via xorgconfig, however it still seems to do this.
I appreciate the link though, I will check it out. If anyone else has an idea let me know.

Thanks-

itsjustme · 04-08-2005, 09:30 AM

How about posting the relevant portions of your xorg.conf file.

kraven morehead · 04-08-2005, 05:29 PM

sure, no problem. Here we go.. let me know if I left anything out that is helpful:

Section "Monitor"
Identifier "monitor1"
VendorName "Generic"
ModelName "1280x1024 @ 74 Hz"
HorizSync 31.5-79.0
VertRefresh 50-90

# Sony Vaio C1(X,XS,VE,VN)?
# 1024x480 @ 85.6 Hz, 48 kHz hsync
ModeLine "1024x480" 65.00 1024 1032 1176 1344 480 488 494 563 -hsync -vsync

# Dell D800 and few Inspiron (16/10) 1280x800
ModeLine "1280x800" 147.89 1280 1376 1512 1744 800 801 804 848

# Dell D800 and few Inspiron (16/10) 1680x1050
ModeLine "1680x1050" 214.51 1680 1800 1984 2288 1050 1051 1054 1103

# Dell D800 and few Inspiron (16/10) 1920x1200
ModeLine "1920x1200" 230 1920 1936 2096 2528 1200 1201 1204 1250 +HSync +VSync

# TV fullscreen mode or DVD fullscreen output.
# 768x576 @ 79 Hz, 50 kHz hsync
ModeLine "768x576" 50.00 768 832 846 1000 576 590 595 630

# 768x576 @ 100 Hz, 61.6 kHz hsync
ModeLine "768x576" 63.07 768 800 960 1024 576 578 590 616
EndSection

Section "Device"
Identifier "device1"
VendorName "Intel Corp."
BoardName "Intel 845"
Driver "i810"
Option "DPMS"
EndSection

Section "Screen"
Identifier "screen1"
Device "device1"
Monitor "monitor1"
DefaultColorDepth 24

Subsection "Display"
Depth 8
Virtual 1280 1024
EndSubsection

Subsection "Display"
Depth 15
Virtual 1280 1024
EndSubsection

Subsection "Display"
Depth 16
Virtual 1280 1024
EndSubsection

Subsection "Display"
Depth 24
Virtual 1280 1024
EndSubsection
EndSection

Section "ServerLayout"
Identifier "layout1"
InputDevice "Keyboard1" "CoreKeyboard"
InputDevice "Mouse1" "CorePointer"
Screen "screen1"
EndSection

itsjustme · 04-08-2005, 06:07 PM

I could be wrong, but that looks kinda weird for an xorg.conf file.
Here's mine, on this desktop machine:

Code:

Section "Device"
        Identifier      "NVIDIA Corporation NV25 [GeForce4 Ti 4400]"
        Driver          "nvidia"
#       BusID           "PCI:1:0:0"
EndSection

Section "Monitor"
        Identifier      "Generic Monitor"
#       Option          "DPMS"
        HorizSync       31-93
        VertRefresh     50-160
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "NVIDIA Corporation NV25 [GeForce4 Ti 4400]"
        Monitor         "Generic Monitor"
        DefaultDepth    24
        SubSection "Display"
                Depth           1
                Modes           "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           4
                Modes           "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           8
                Modes           "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           15
                Modes           "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           16
                Modes           "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           24
                Modes           "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection
EndSection

WhoTHCares? · 05-01-2005, 10:43 AM

Quote:

Originally posted by kraven morehead
Well,
I have tried every monitor from generic 1280x1024 @ 60 and 74 hertz,
used both the analog and digital driver for the actual monitor I have (dell fp1901)
and for some reason I can't run the resolution test and have it work at 24 bit color. Its all out of synch.
at 16 bit its fine, and if i leave it at 24bit and log out of x and go back in, i can hit crtl alt - then + and it will stay at 24bit.
the problem is that it wont just initialize it on its own.

any one ever see this?

my vid card is an intel onboard, (i845).

Thanks.

We have Dell machines running RedHat Enterprise Server with the i845 chipset and we are running Dell FP1901's just like yourself and are seeing the same issue. We cannot sync the monitor past 640x480 because of font issues and even at 640x480 the font is horrible.

The issue is not with the monitor, but with the graphics card itself. You could probably save yourself a LOT of heartache if you turned off the on-board graphics and bought an AGP video card. There are patches/workarounds available, but you may need to patch the graphics yourself.

The following link here describes the issue with Intel i830 chipset, but it should give you a starting point.