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Old 01-17-2009, 08:30 PM   #1
jsharp768
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Registered: Jan 2009
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Unable to select resolution on Fedora Core 10


I have Fedora Core 10 dual booting on my laptop. After installing the Nvidia drivers I'm unable to select 1280x800 as a resolution (no problems with windows xp). It defaults to the highest resolution (1920x1200). I've been googling this problem for two weeks. Most of the suggestions are to add a Mode line to /etc/X11/xorg.conf but that doesn't do anything. I've also tried different things with System->Administration->Display (changing the monitor type, etc.). I've also tried nvidia-settings. I'm having other problems with linux also, but those are unrelated to this.

Specs on my laptop:
HP Compaq 8510w
linux kernel: 2.6.27.9-159.fc10.i686
Nvidia linux display drivers version 180.22
NVIDIA Quadro FX 570M
Monitor: Samsung LTN154U2-L07 [15.4" LCD]

If you need more info let me know. I just supplied what I thought was most important.

And I'm not sure if this belongs in the Software or Hardware section (I'm not sure what's causing the problem) so if this is in the wrong forum just move it.
 
Old 01-18-2009, 06:29 PM   #2
jsharp768
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bump

Nobody can help me with this? It's not like I haven't googled solutions. I posted this thread after spending many hours (12+) trying to fix it. This is just one of the problems that I'm having with Linux. At least with windows it was easy to fix a problem; install the drivers and that's it, problem fixed. Linux you have to search for weeks and try a dozen solutions only to find that nothing works and perhaps some of the solutions you tried may have made the problem worse. I'm not just talking about this issue but the dozen other issues that are making using linux a real pain in the ass for me.

Anyway, I'm just a little frustrated. I would really appreciate it if I can get some help. At the least point me to the right links to read cause all the stuff I've read hasn't helped me.
 
Old 01-18-2009, 06:40 PM   #3
alan_ri
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Hi,
Will you post the output of xorg.conf file-Section Monitor,Device and Screen.Also,please post the output from your Windows XP display settings.

Last edited by alan_ri; 01-18-2009 at 06:49 PM. Reason: adding info
 
Old 01-18-2009, 07:20 PM   #4
jsharp768
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Thanks for the help. I don't know what you referring to by XP display settings.

Here is my xorg.conf:

Code:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister@builder63)  Tue Jan  6 10:03:02 PST 2009

# Xorg configuration created by system-config-display

Section "ServerLayout"
    Identifier     "single head configuration"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
    FontPath        "/usr/share/fonts/default/Type1"
EndSection

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/input/mice"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from data in "/etc/sysconfig/keyboard"
    Identifier     "Keyboard0"
    Driver         "kbd"
    Option         "XkbLayout" "us"
    Option         "XkbModel" "pc105"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       30.0 - 110.0
    VertRefresh     50.0 - 150.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Viewport    0 0
        Depth       24
    EndSubSection
EndSection
 
Old 01-18-2009, 08:19 PM   #5
alan_ri
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I've asked you to see in Windows XP your HorizSync and VertRefresh rate,among other things.
You've said that you've tried to add modes line,but now you got nothing in there,so make it look like this and save the file,reboot.Post if that helped.

Code:
Section "Screen"
    Identifier "Screen0"
    Device     "Videocard0"
    Monitor    "Monitor0"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Depth     16
        Modes    "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     24
        Modes    "1280x800" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection
Code:
Section "Monitor"
    Identifier   "Monitor0"
    VendorName   "Monitor Vendor"
    ModelName    "Samsung LTN154U2-L07 1280x800"
    HorizSync    30.0 - 110.0
    VertRefresh  50.0 - 150.0
    Option        "dpms"
EndSection

Last edited by alan_ri; 01-18-2009 at 08:22 PM.
 
Old 01-19-2009, 11:55 PM   #6
jsharp768
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That doesn't work. It just changes the resolution to 1024x768
 
Old 01-20-2009, 07:57 AM   #7
alan_ri
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Try to add,under the "modes" "1280x800" where the depth is 16.

Last edited by alan_ri; 01-22-2009 at 01:15 AM.
 
Old 01-21-2009, 08:29 PM   #8
jsharp768
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Ok, I've tried a bunch of things and none of them work. I did add this line under SubSection "Display"

Virtual 1280 800

When I restarted the x server it said that the resolution was 1280x800, but the entire desktop wasn't showing on the screen. When I moved my mouse to the side of the screen it would scroll and reveal the rest of the desktop. It looked like all it did was sort of zoom in to only show 1280x800 pixels at a time.

I looked into how to find the HorizSync and VertRefresh rate in windows for my laptop screen but I couldn't find how. I know that the refresh rate is 60 hertz.

I've been reading some stuff that says that I should install kmod-nvidia drivers instead of the proprietary nvidia drivers. So maybe I'll try that later.
 
Old 01-21-2009, 08:29 PM   #9
jsharp768
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Registered: Jan 2009
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Ok, I've tried a bunch of things and none of them work. I did add this line under SubSection "Display"

Virtual 1280 800

When I restarted the x server it said that the resolution was 1280x800, but the entire desktop wasn't showing on the screen. When I moved my mouse to the side of the screen it would scroll and reveal the rest of the desktop. It looked like all it did was sort of zoom in to only show 1280x800 pixels at a time.

I looked into how to find the HorizSync and VertRefresh rate in windows for my laptop screen but I couldn't find how. I know that the refresh rate is 60 hertz.

I've been reading some stuff that says that I should install kmod-nvidia drivers instead of the proprietary nvidia drivers. So maybe I'll try that later.
 
Old 03-17-2009, 11:00 PM   #10
soccerm
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xorg.conf

Hi

I just installed FC10 but I am not able to find xorg.conf

I looked under /etc/X11 this is where the path was all previous flavours

I will appreciate any help
 
Old 03-18-2009, 01:30 AM   #11
alan_ri
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Hi and welcome to LQ,soccerm.
As they say in Fedora forums
Quote:
X11/Xorg can now run without any xorg.conf file, using probed/default values. To generate a hard-copy to edit, run system-config-display (aka "Display Manager") and save.
Maybe you'll need to install system-config-display.
 
Old 03-18-2009, 02:20 AM   #12
alan_ri
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jsharp768,
I don't know if you've found HorizSync and VertRefesh rate,but I'm sure that this where your problem is.You say that VertRefesh is 60 Hertz,if so you can use in Modes sections 1280x800_60 and so on to limit refresh rate.Did you checked monitor manual/s or Samsung's web site?
I know there are some limitations with Nvidia proprietary drivers and refresh rate.I guess that things did work with nv driver for you,if so you could try to use kmod driver,it might work,but using
Code:
1280x800_60
shoud do for proprietary drivers too.

Last edited by alan_ri; 03-18-2009 at 02:22 AM.
 
  


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