[x11] How to make the LCD show 24 bits colors (Part 2)

[John Klingler]

Why do you think your monitor is showing 16 bit pixels, Luis?

Unless your hardware supports multiple depths for on screen windows,
the xwininfo output below indicates your display depth is 24, not 16.

If you run xdpyinfo it will confirm this. The output will look like this:

eng8:john: xdpyinfo
name of display:    192.168.20.17:0.0
...

  depth of root window:    24 planes
...

Perhaps your problem is the monitor or monitor settings. Have you asked
nVidia about this? Do you have a manual?

John

Luis Pablo Gasparotto wrote:

>Hi,
>
>After making a lot of changes. My monitor is still showing 16 bit 
>colors. There's something strange, if I run xwininfo command I get the 
>following report:
>
>   Absolute upper-left X:  0
>   Absolute upper-left Y:  49
>   Relative upper-left X:  0
>   Relative upper-left Y:  24
>   Width: 1440
>   Height: 825
>   Depth: 24
>   Visual Class: TrueColor
>   Border width: 0
>   Class: InputOutput
>   Colormap: 0x20 (installed)
>   Bit Gravity State: NorthWestGravity
>   Window Gravity State: NorthWestGravity
>   Backing Store State: NotUseful
>   Save Under State: no
>   Map State: IsViewable
>   Override Redirect State: no
>   Corners:  +0+49  -0+49  -0-26  +0-26
>   -geometry 1440x825+0+25
>
>These are the relevant sections in xorg.conf:
>...
>Section "Module"
>     Load           "i2c"
>     Load           "bitmap"
>     Load           "ddc"
>     Load           "extmod"
>     Load           "freetype"
>     Load           "int10"
>     Load           "vbe"
>     Load           "glx"
>EndSection
>...
>Section "Monitor"
>     Identifier     "VA1703wSERIE"
>     HorizSync       24.0 - 70.0
>     VertRefresh     50.0 - 75.0
>     Gamma           0.6
>     ModeLine       "1440x900" 106.5 1440 1520 1672 1904 900 903 909 934
>     Option         "DPMS"
>EndSection
>
>Section "Device"
>     Identifier     "nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 
>64 Pro]"
>     Driver         "nvidia"
>EndSection
>
>Section "Screen"
>     Identifier     "Default Screen"
>     Device         "nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 
>64 Pro]"
>     Monitor        "VA1703wSERIE"
>     DefaultDepth    24
>     DefaultFbBPP    32
>     Option         "AddARGBGLXVisuals" "True"
>     Option         "NvAGP" "1"
>     Option         "AllowDDCCI" "True"
>     Option         "UseDisplayDevice" "DFP"
>     Option         "IgnoreDisplayDevices" "CRT"
>     Option         "FlatPanelProperties" "Dithering = Enabled"
>     Option         "ModeValidation" "NoDFPNativeResolutionCheck"
>     Option         "DigitalVibrance" "50"
>     Option         "UseEdidFreqs" "False"
>     Option         "NoLogo" "True"
>     Option         "AllowGLXWithComposite" "True"
>     Option         "PseudoColorVisuals" "Off"
>     Option	   "UseFBDev"	"True"
>     SubSection     "Display"
>         Viewport    0 0
>         Depth       16
>         Modes      "1440x900" "1024x768" "800x600" "640x480"
>     EndSubSection
>     SubSection     "Display"
>         Viewport    0 0
>         Depth       24
>         Modes      "1440x900" "1024x768" "800x600" "640x480"
>     EndSubSection
>EndSection
>
>I made a few changes to xorg.conf and attached my old CRT monitor and I 
>saw 24 bit colors. I also attached the ViewSonic VA1703wb to an iBook G4 
>VGA adaptor and I saw 24 bit colors. I suspect the problem is related to 
>the way the TNT2 send information to the LCD monitor.
>
>I'll really appreciate any kind of help.
>
>Thank you in advance.
>
>Luis Pablo
>
>
>_______________________________________________
>xorg mailing list
>xorg at lists.freedesktop.org
>http://lists.freedesktop.org/mailman/listinfo/xorg
>
>  
>