[mythtv-users] Sharp LC-26GA5U Modeline
Harley Peters
harley at hpeters.net
Tue Feb 6 23:03:22 UTC 2007
JDP DATA wrote:
> Guys, I need help setting my LCD to output native 1280x768 or 1366x768
> is even better. I tried Jarod's Powerstrip method, I can get 1280x768
> in Windows (albeit black bars on the side) and 1366x768 looks horrible
> so I gave up on try that. So I copied the modeline for 1280x768 into
> xorg.conf, but it's being ignore for some reason, I can only get 1024x768.
>
> I attached my xorg.conf and Xorg.0.log if any kind soul would diagnose
> for me.
>
> Specs:
> FC5/MythDora 3.2 Front/BackEnd
> P4 3.0G /1G RAM
> PNY GeForce 6200 256MB
> 2x Kworld ASTC 110
> 1x Hauppuage PVR-150
> Sharp LC26GA5U DVI -> DVI
>
>
>
>
>
>
> # 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"
> # Multiple FontPath entries are allowed (they are concatenated together)
> # By default, a font server independent of the X server is
> # used to render fonts.
>
> FontPath "unix/:7100"
> EndSection
>
> Section "Module"
> Load "dbe"
> Load "extmod"
> Load "fbdevhw"
> Load "glx"
> Load "record"
> Load "freetype"
> Load "type1"
> #Load "dri"
> Load "v4l"
> 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 "Sharp"
> ModelName "LC-26GA5U"
> ### Comment all HorzSync and VertSync values to use DDC:
> HorizSync 48.1
> VertRefresh 60.0
> Option "dpms"
> # My 1280x768p mode
> Mode "1280x768p"
> DotClock 81.000
> HTimings 1280 1328 1440 1688
> VTimings 768 769 772 802
> Flags "+HSync" "-VSync"
> EndMode
> EndSection
>
> Section "Device"
> Identifier "Videocard0"
> Driver "nv"
> VendorName "Videocard vendor"
> BoardName "nVidia Corporation GeForce 6200"
> Option "NoDDC"
> EndSection
>
> Section "Screen"
> Identifier "Screen0"
> Device "Videocard0"
> Monitor "Monitor0"
> DefaultDepth 24
> SubSection "Display"
> Viewport 0 0
> Depth 24
> Modes "1280x768p"
> EndSubSection
> EndSection
>
> Section "DRI"
> Group 0
> Mode 0666
> EndSection
>
> (II) NV(0): Mode "1280x768p" is larger than BIOS programmed panel size
> of 1024 x 768. Removing.
> (II) NV(0): Not using mode "1280x768p" (unknown reason)
>
>
>
> II) NV(0): Not using mode "1280x768p" (no mode of this name)
> (--) NV(0): Virtual size is 1024x768 (pitch 1024)
> (**) NV(0): Default mode "1024x768": 65.0 MHz, 48.4 kHz, 60.0 Hz
> (II) NV(0): Modeline "1024x768" 65.00 1024 1048 1184 1344 768 771
> 777 806 -hsync -vsync
> (==) NV(0): DPI set to (75, 75)
> (II) Loading sub module "fb"
> (II) LoadModule: "fb"
> (II) Loading /usr/lib/xorg/modules/libfb.so
> (II) Module fb: vendor=" X.Org Foundation"
> compiled for 7.0.0, module version = 1.0.0
> ABI class: X.Org ANSI C Emulation, version 0.2
>
>
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>
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Try adding:
Option "ModeValidation" "NoDFPNativeResolutionCheck"
to the device section of xorg.conf.
I know on my Sharp LC32D50U display that X thinks the native resolution
of the display is 1024x768 and won't let it be set to any thing higher
without this option in xorg.conf
If that doesn't work try starting x with the command startx --
-logverbose 6 and it will tell you why it's failing in the log file.
Harley
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