I think some of the old QNX4 R5 utilties are too smart where it
will treat DISPLAY=localhost:0.0 to use local transport (instead of tcpip
transport). Unfortunately, the R6 server doesn’t support this QNX’s
home made local transport, so you got the error.
A quick workaround would be to tell those old utils that your DISPLAY
is on a tcpip host (thus force them to use tcpip transport).
xcalc -display yourrealhostname:0.0
(you can type “hostname” command to get your real hostname).
On Thu, 21 Dec 2000, Clyde Xi wrote:
We are moving from X-Windows R5 to R6 and some of graphic tools and
utilities are broken, such as
xwdtopnm: couldn’t read X11 XWD colormap
Error: Can’t open display: localhost:0.0 (this must be a simple fix)
Error: Can’t open display: localhost:0.0
ghostview: cannot open DISPLAY
Most are DISPLAY related. Is there a site we can get all these X11 stuff
Thank you in advance.