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#1 2009-04-27 20:41:29

Kaloos
Member
Registered: 2009-04-27
Posts: 29

Can't set refresh rate to 75 with Samsung SyncMaster 932 BF

Hi,

I can't set refresh rate to 75Hz both in Gnome display properties and in Nvidia panel. So i have it stuck at 60Hz.
I've tried several solutions i found on forums but none of them worked sad
Here is my xorg.conf :

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


Section "ServerLayout"
    Identifier     "X.org Configured"
    Screen      0  "Screen0" 0 0
    InputDevice    "Mouse0" "CorePointer"
    InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
    ModulePath      "/usr/lib/xorg/modules"
    FontPath        "/usr/share/fonts"
EndSection

Section "Module"
    Load           "glx"
    Load           "dbe"
    Load           "extmod"
    Load           "xtrap"
    Load           "record"
    Load           "freetype"
    Load           "bitmap"
    Load           "ddc"
EndSection

Section "ServerFlags"
    Option         "AutoAddDevices" "True"
EndSection

Section "InputDevice"
    Identifier     "Keyboard0"
    Driver         "kbd"
    Option         "XkbLayout" "fr"
EndSection

Section "InputDevice"
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/input/mice"
    Option         "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Samsung"
    ModelName      "SyncMaster 932 BF"
    UseModes "Modes[0]"
    HorizSync 30.0 - 81.0
    VertRefresh 56.0 - 75.0
EndSection

Section "Device"

        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "ShadowFB"               # [<bool>]
        #Option     "DefaultRefresh"         # [<bool>]
        #Option     "ModeSetClearScreen"     # [<bool>]
    Identifier     "Card0"
    Driver         "nvidia"
    VendorName     "nVidia Corporation"
    BoardName      "G92 [GeForce 8800 GTS]"
EndSection

Section "Modes"
   Identifier "Modes[0]"
 # 1280x1024 @ 75.00 Hz (GTF) hsync: 80.17 kHz; pclk: 138.54 MHz
  Modeline "1280x1024_75.00"  138.54  1280 1368 1504 1728  1024 1025 1028 1069  -HSync +Vsync
EndSection


Section "Screen"
   Identifier     "Screen0"
   Device         "Card0"
   Monitor        "Monitor0"
   DefaultDepth    24
   Option         "TwinView" "0"
   SubSection     "Display"
       Depth       24
       Modes       "1280x1024" "1024x768" "800x600" "640x480"       
   EndSubSection
EndSection

Thanks in advance if i can get any help big_smile

EDIT : In Gnome display properties it says "Unknown Screen" hmm

Last edited by Kaloos (2009-04-27 20:49:32)

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#2 2009-04-27 21:14:13

EVRAMP
Member
From: Czech Republic
Registered: 2008-10-03
Posts: 173
Website

Re: Can't set refresh rate to 75 with Samsung SyncMaster 932 BF

Keep in mind, that 75Hz is maximum for Samsung SyncMaster 932 BF. The higher resolution the lower refresh rate can be used. Do not expect 75Hz at 1280*1024. My BenQ has max 60Hz with this resolution.
And by the way: it is an LCD display, so why bother with vertical refresh rate?

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#3 2009-04-27 21:21:58

Kaloos
Member
Registered: 2009-04-27
Posts: 29

Re: Can't set refresh rate to 75 with Samsung SyncMaster 932 BF

1st :  It runs perfectly fine at 1280x1024@75Hz in Windows XP/Vista, so there is no reason it shouldn't work in Linux. In Nvidia-panel there is even the 75Hz option in the drop-down list when resolution is 1280x1024.
2nd : It isn't easy on the eyes at 60Hz compared to 75Hz, even more when i play games (Quake 3 for example).

Last edited by Kaloos (2009-04-27 21:22:18)

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