[Jacques]

Hi, posting from my O2 and it's running 24bit now.

Looking at your Xservers file and xdpyinfo output, it looks like you're running a 24 bit TrueColor output.

Code:

screen #0:
...
dimensions: 1024x768 pixels (373x280 millimeters)
resolution: 70x70 dots per inch
depths (5): 1, 8, 12, 15, 24
root window id: 0x3f
depth of root window: 24 planes
number of colormaps: minimum 1, maximum 23
default colormap: 0x3c
default number of colormap cells: 256
preallocated pixels: black 0, white 16777215
default visual id: 0x33

default visual id: 0x33 <---- This is the important bit.

and...

Code:

visual id: 0x33
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff, 0xff00, 0xff0000
significant bits in color specification: 8 bits

depth: 24 planes <---- 24 bit depth

My understanding is you have 3 x 8bits (r,g,b) of significant color specification to give you 2^24 ( 2^(8+8+8) ) = 16,777,216 color variations.

So it appears you are running 24 bit already

This is the my TrueColor Xservers file just for comparison

Code:

:0 secure /usr/bin/X11/X -bs -nobitscale -c -pseudomap 4sight -solidroot sgilightblue -cursorFG red -cursorBG white

and my 24 bit TrueColor Xservers file

Code:

:0 secure /usr/bin/X11/X -bs -nobitscale -c -class TrueColor -depth 24 -solidroot sgilightblue -cursorFG red -cursorBG white

My relevant xdpyinfo output

Code:

screen #0:
  dimensions:    1440x900 pixels (520x330 millimeters)
  resolution:    70x69 dots per inch
  depths (5):    1, 8, 12, 15, 24
  root window id:    0x40
  depth of root window:    24 planes
  number of colormaps:    minimum 1, maximum 11
  default colormap:    0x3d
  default number of colormap cells:    256
  preallocated pixels:    black 0, white 16777215
  options:    backing-store NO, save-unders NO
  largest cursor:    32x32
  current input event mask:    0x72003c
    ButtonPressMask          ButtonReleaseMask        EnterWindowMask          
    LeaveWindowMask          StructureNotifyMask      SubstructureRedirectMask
    FocusChangeMask          PropertyChangeMask      
  number of visuals:    29
  default visual id:  0x32

...

visual id:    0x32
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff, 0xff00, 0xff0000
    significant bits in color specification:    8 bits

Jacques