clock command gives error response in root

what if you run clock as user?

In user mode also i'm getting same response
as below.......

jag@ubuntu:~$ clock
XView warning: Cannot load font '-b&h-lucida-medium-r-*-*-*-120-*-*-*-*-*-*' (Font package)
XView warning: Cannot load font '-b&h-lucida-medium-r-normal-sans-*-120-*-*-*-*-*-*' (Font package)
XView error: Cannot open connection to window server: :0 (Server package)

What does clock do?

clock command read date & time directly from RTC and displays..............

Please install

sudo apt-get install xview-clients

then type

clock

Yes, i did that ...........
after that it showing like this.............

Hey you pasted nothing ...

if your question solved please mark as solved

thanks

still I need an answer....

ok you must configure your firewall it may blocking connection

thanks

how to configure the firewall in ubutu.......?????

thanks....

https://help.ubuntu.com/community/IptablesHowTo
and
https://help.ubuntu.com/8.04/serverguide/C/firewall.html

Hope it can be helpful

thanks

I encounter the same error msg:
XView warning: Cannot load font '-b&h-lucida-medium-r-*-*-*-120-*-*-*-*-*-*' (Font package)
 XView warning: Cannot load font '-b&h-lucida-medium-r-normal-sans-*-120-*-*-*-*-*-*' (Font package)

I am trying to run WAVE (using XView) on a Ubuntu Desktop 10.13 (32-bit).

It seems that your problem is gone. Do you still remember how to fix this problem?

Million thanks in advance!

A temporary work around is probably to start the program with a -fn "*iso8859*" command line argument (it works for the application I am working on), but I am still looking for a way of fixing it properly
....But as the last comment was 4 months ago, I guess you have fixed it, so I'd be interested to know how you cured it.

Hi all,
I am experiencing the same error when I am trying to run WAVE (using XView) on a Ubuntu Desktop 14.04 (32-bit).

XView warning: Cannot load font '-b&h-lucida-medium-r-*-*-*-120-*-*-*-*-*-*' (Font package)
XView warning: Cannot load font '-b&h-lucida-medium-r-normal-sans-*-120-*-*-*-*-*-*' (Font package)
XView error: Cannot open connection to window server: :0 (Server package)

If you fixed this problem, please help me to solve this.

Thanks in advance.

I am experiencing this issue, running WAVE on a Ubuntu 16.04, 32 bit

Example waveform:
$ wave -r 100s -a atr
Resulted in:
XView error: Cannot open connection to window server: :0 (Server package)

Using tip from Grahamjones139:
$ wave -r 100s -a atr -fn *iso8859*
Resulted in: success, wave window displaying