>> Try 32-bit, which is essentially 24-bit but in a "friendlier" pixel
>> format.  Xvnc can handle 24-bit, but it seems the vncviewer needs 8,
>> 16 or 32-bit formats.  It's worth noting that most Windows and Mac
>> video cards that use "true colour" modes do so using 32-bit mode
>> internally, even if it's reported as 24-bit by the OS.
>
>This card doesn't support 1280x1024x32, not enough memory;  4MB Matrox
>Millenium.

I said "most", not "all".  Actually, Matrox cards are an interesting
anomaly in that they support using "overlay" mode to use those extra 8 bits
normally left unused in 32-bit mode (a kind of 8+24 mode).

>You say Xvnc can handle 24bpp but the `default format' output below
>suggests it doesn't;  it is using 32bpp.

>Am I interpreting this correctly?

Not quite...  there's three different pixel formats in use here:

- the framebuffer maintained by Xvnc for running X applications
- the 'wire' format used by VNC to transfer data
- the depth of the local screen which vncviewer is running on

Xvnc can cope with 8-bit pseudocolour, 8/16/24/32-bit truecolour modes, as
can any other system based on XFree86.

RFB only uses 8, 16 and 32-bit formats on the wire, mostly in truecolour.

vncviewer apparently can't cope with 24-bit local screens, so only uses
8/16/32-bit modes.  This appears to be a surprisingly common "non-feature"
in X applications, so you may well find you have better luck in 32-bit mode
even if you have to go down a step in resolution to achieve this.

--------------------------------------------------------------
from:     Jonathan "Chromatix" Morton
mail:     [EMAIL PROTECTED]  (not for attachments)
big-mail: [EMAIL PROTECTED]
uni-mail: [EMAIL PROTECTED]

The key to knowledge is not to rely on people to teach you it.

Get VNC Server for Macintosh from http://www.chromatix.uklinux.net/vnc/

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