hosea.basis@gmail.com wrote:
> Hi, i noticed that in the setting of display, we have the option of
> :0.0

> Generally, it is as above. But somehow, i guess that we could change
> the last 0 incrementally. Could this be the number of xwindows session
> that are available?

Do 'man X' and look for the section DISPLAY NAMES. The format is
like this: hostname:displaynumber.screennumber
Hostname is, well, hostname. Displaynumber refers to a particular X
server, which I guess is what you are calling an "xwindows session". If
you have more than one X server running on a host, then you would have
more than one display number. The "screen number" refers to a
particular screen belonging to a particular display. I'm sure it's used
sometimes, but I can't remember ever seeing it anything but zero.

Do you have a particular desire or need to change the $DISPLAY
setting, or were you just asking out of curiosity? If you want an
application to appear on a different display, you usually have to change
the display number, not the screen number; ie, the first zero, not the
second. Unless the display is on a different host, in which case it's
probably display 0 on that hostname.

JDW

In article , Jeremiah DeWitt Weiner wrote:
> hosea.basis@gmail.com wrote:
>> Hi, i noticed that in the setting of display, we have the option of
>> :0.0
>
>> Generally, it is as above. But somehow, i guess that we could change
>> the last 0 incrementally. Could this be the number of xwindows session
>> that are available?
>
> Do 'man X' and look for the section DISPLAY NAMES. The format is
> like this: hostname:displaynumber.screennumber
> Hostname is, well, hostname. Displaynumber refers to a particular X
> server, which I guess is what you are calling an "xwindows session". If
> you have more than one X server running on a host, then you would have
> more than one display number. The "screen number" refers to a
> particular screen belonging to a particular display. I'm sure it's used
> sometimes, but I can't remember ever seeing it anything but zero.

If you run a window manager that supports multiple desktops or workspaces (CDE,
Blackbox, WindowMaker, others) then the screen number represents the different
desktops.

> Do you have a particular desire or need to change the $DISPLAY
> setting, or were you just asking out of curiosity? If you want an
> application to appear on a different display, you usually have to change
> the display number, not the screen number; ie, the first zero, not the
> second. Unless the display is on a different host, in which case it's
> probably display 0 on that hostname.


Kevin

--
Unix Guy Consulting, LLC
Unix and Linux Automation, Shell, Perl and CGI scripting
http://www.unix-guy.com

Kevin Collins wrote:
> In article , Jeremiah DeWitt Weiner
wrote:
> > hosea.basis@gmail.com wrote:
> >> Hi, i noticed that in the setting of display, we have the option
of
> >> :0.0
> >
> >> Generally, it is as above. But somehow, i guess that we could
change
> >> the last 0 incrementally. Could this be the number of xwindows
session
> >> that are available?
> >
> > Do 'man X' and look for the section DISPLAY NAMES. The format is
> > like this: hostname:displaynumber.screennumber
> > Hostname is, well, hostname. Displaynumber refers to a particular
X
> > server, which I guess is what you are calling an "xwindows
session". If
> > you have more than one X server running on a host, then you would
have
> > more than one display number. The "screen number" refers to a
> > particular screen belonging to a particular display. I'm sure it's
used
> > sometimes, but I can't remember ever seeing it anything but zero.
>
> If you run a window manager that supports multiple desktops or
workspaces (CDE,
> Blackbox, WindowMaker, others) then the screen number represents the
different
> desktops.
>
> > Do you have a particular desire or need to change the $DISPLAY
> > setting, or were you just asking out of curiosity? If you want an
> > application to appear on a different display, you usually have to
change
> > the display number, not the screen number; ie, the first zero, not
the
> > second. Unless the display is on a different host, in which case
it's
> > probably display 0 on that hostname.
>
>
> Kevin
>
> --
> Unix Guy Consulting, LLC
> Unix and Linux Automation, Shell, Perl and CGI scripting
> http://www.unix-guy.com


Hi

Thanks guys!

Yup, i asked it out of curiosity...