problems to open graphics device

[David Wheatley]

Hi,

My x-server for Windows runs the standard 8-bit monitor on my (24-bit)
graphics screen. This might be an easier solution than compiling the
XDRIVER24 code, as you won't need to change GRASS at all, just your PC.

The one I use is 'Micro X-Win32' for Win95/NT (around $200 from Starnet:
sales at starnet.com). You simply tell the server to do 'Pseudocolor
support in 24-bit mode' and it fools the grass 8-bit monitors into
thinking they are working on a pseudocolor display. You can get a demo
of this which runs for 2 hours at a time, to test this out. Other
x-servers (e.g. StarNet's Win3.1 version, or Vista eXceed, or the one
packaged with NT server) might do this as well now for all I know.

Just a thought.

David Wheatley
Department of Archaeology
University of Southampton

Malcolm Williamson wrote:
> 
> The standard GRASS xdriver only works on 8-bit graphic displays. Check
> your PC display to be sure that it is set to 256 colors. If you wish 
> to be able to display on a PC running more than 256 colors, you'll 
> need to get the contributed "24XDRIVER" code off of GRASS ftp site. 
> This will provide you with a GRASS 8-bit display window that will work 
> on 24-bit desktops. Good luck,
> --
> 
> > Hi,
> >
> > I got an error message when I tried to open GRASS monitor from a 
> > remote PC. The error message is:
> >
> > X Error of failed request: BadMatch (invalid parameter attributes)
> >     Major opcode of failed request: 78 (X_CreateColormap)
> >     Serial number of failed request:  227
> >     Current serial number in output stream:  228
> > Error - Can't set up pipe to graphics device.
> > Problem selecting x1. Will try once more.
> > Error - Can't set up pipe to graphics device.
> >
> > By the way, it doesn't have that problem when I run GRASS from the 
> > SUN console. I think I set the "xhost" correctly in my PC and I have 
> > no problem to link to open windows/graphics from other software 
> > remotely.