Hello Everyone,
Well, I dove into the LCD Monitor world. I will have to say that I am very pleased. There is one thing though that I am trying to figure out. The LCD Monitor that I bought, LG Electronics L1710BK, is supposed to be able to support 75Hz at 1280x1024. When X starts, it only goes to 60Hz. Now, if I change the resoultion down to 1024x768 I do get 75Hz. Thinking I would be smart and trick Xorg, I changed the VertRefresh line to 75.0 - 75.0 just to see. However, it ended up tricking me by falling to 1024x768 resoultion. I then decided, well maybe it really can't handle 75Hz at 1280x1024 and so I did a bit more research. However, every spec sheet I can find on this monitor says it can handle 75Hz at this resoultion.
My question, is there a way that I can change the refresh rate to 75Hz or should I take that when X starts up that it falls to 60Hz a sign? If all these spec lists about this monitor is right I can handle this rate; however, Xorg doesn't seem to think so.
If needed, here is my xorg.conf:
# Xorg configuration created by system-config-display
Section "ServerLayout" Identifier "single head configuration" Screen 0 "Screen0" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection
Section "Files"
# RgbPath is the location of the RGB database. Note, this is the name of the # file minus the extension (like ".txt" or ".db"). There is normally # no need to change the default. # Multiple FontPath entries are allowed (they are concatenated together) # By default, Red Hat 6.0 and later now use a font server independent of # the X server to render fonts. RgbPath "/usr/X11R6/lib/X11/rgb" FontPath "unix/:7100" EndSection
Section "Module" Load "dbe" Load "extmod" Load "fbdevhw" Load "glx" Load "record" Load "freetype" Load "type1" #Load "dri" EndSection
Section "InputDevice"
# Specify which keyboard LEDs can be user-controlled (eg, with xset(1)) # Option "Xleds" "1 2 3" # To disable the XKEYBOARD extension, uncomment XkbDisable. # Option "XkbDisable" # To customise the XKB settings to suit your keyboard, modify the # lines below (which are the defaults). For example, for a non-U.S. # keyboard, you will probably want to use: # Option "XkbModel" "pc102" # If you have a US Microsoft Natural keyboard, you can use: # Option "XkbModel" "microsoft" # # Then to change the language, change the Layout setting. # For example, a german layout can be obtained with: # Option "XkbLayout" "de" # or: # Option "XkbLayout" "de" # Option "XkbVariant" "nodeadkeys" # # If you'd like to switch the positions of your capslock and # control keys, use: # Option "XkbOptions" "ctrl:swapcaps" # Or if you just want both to be control, use: # Option "XkbOptions" "ctrl:nocaps" # Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "us" EndSection
Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Protocol" "IMPS/2" Option "Device" "/dev/input/mice" Option "ZAxisMapping" "4 5" Option "Emulate3Buttons" "yes" EndSection
Section "Monitor" Identifier "Monitor0" VendorName "LG Electronics" ModelName "L1710BK" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 75.0 Option "dpms" EndSection
Section "Device" Identifier "Videocard0" Driver "nvidia" VendorName "NVidia" BoardName "NVIDIA GeForce 4 TI4600 EndSection
Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 Modes "1280x1024" "1024x768" "800x600" EndSubSection EndSection
Section "DRI" Group 0 Mode 0666 EndSection
===================
Thank you for your time.
- Patrick
In message 1102047873.9073.11.camel@mine.nuyou write:
Hello Everyone,
The LCD Monitor that I bought, LG Electronics L1710BK, is supposed to be able to support 75Hz at 1280x1024. When X starts, it only goes to 60Hz. Now, if I change the resoultion down to 1024x768 I do get 75Hz. Thinking I would be smart and trick Xorg, I changed the VertRefresh line to 75.0 - 75.0 just to see. However, it ended up tricking me by falling to 1024x768 resoultion. I then decided, well maybe it really can't handle 75Hz at 1280x1024 and so I did a bit more research. However, every spec sheet I can find on this monitor says it can handle 75Hz at this resoultion.
My question, is there a way that I can change the refresh rate to 75Hz or should I take that when X starts up that it falls to 60Hz a sign? If all these spec lists about this monitor is right I can handle this rate; however, Xorg doesn't seem to think so.
Well, by my calculations, 1280x1024 at 75 Hz means the vertical rate is 1024 *75 or 76.8Khz. Your config file says you can only do 75khz. Up it to 78 and see what happens - either the display self destructs or it works.
steve
Section "Monitor" Identifier "Monitor0" VendorName "LG Electronics" ModelName "L1710BK" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 75.0 Option "dpms" EndSection