Acroread vs. ctrl/z

[Jonathan Ryshpan]

When Adobe acroread is run from a terminal, ctrl/z doesn't suspend it.
^Z appears on the terminal, which hangs until acroread terminates itself
or ctrl/c is pressed on the terminal.  However "$ acroread &" starts
acroread in the background and ctrl/z suspends all other programs, as
expected.  System is Fedora-19 with all updates installed.

Has anyone else seen this?  What's going on?

[Patrick O'Callaghan]

On Thu, Dec 19, 2013 at 11:07 PM, Jonathan Ryshpan wrote:
> When Adobe acroread is run from a terminal, ctrl/z doesn't suspend it.
> ^Z appears on the terminal, which hangs until acroread terminates itself
> or ctrl/c is pressed on the terminal.  However "$ acroread &" starts
> acroread in the background and ctrl/z suspends all other programs, as
> expected.  System is Fedora-19 with all updates installed.
>
> Has anyone else seen this?  What's going on?

Presumably acroread is trapping the Ctrl-Z. Whether that's a bug or a
feature is a matter of conjecture. Programs can do pretty much what they
like with their controlling terminal. It doesn't mean there's anything
wrong with your system.

poc

[Mihai T. Lazarescu]

On Thu, Dec 19, 2013 at 03:07:49PM -0800, Jonathan Ryshpan wrote:
> When Adobe acroread is run from a terminal, ctrl/z doesn't suspend it.
> ^Z appears on the terminal, which hangs until acroread terminates itself
> or ctrl/c is pressed on the terminal.  However "$ acroread &" starts
> acroread in the background and ctrl/z suspends all other programs, as
> expected.  System is Fedora-19 with all updates installed.
>
> Has anyone else seen this?  What's going on?

Not here (same F19 updated):

mihai@mtl> acroread 
    ^Z
    [1]+  Stopped                 acroread
    mihai@mtl>

I use xterm and AdobeReader_enu-9.5.5-1.i486

HTH,
Mihai

[Ed Greshko]

On 12/20/13 08:22, Mihai T. Lazarescu wrote:
> On Thu, Dec 19, 2013 at 03:07:49PM -0800, Jonathan Ryshpan wrote:
> > When Adobe acroread is run from a terminal, ctrl/z doesn't suspend it.
> > ^Z appears on the terminal, which hangs until acroread terminates itself
> > or ctrl/c is pressed on the terminal.  However "$ acroread &" starts
> > acroread in the background and ctrl/z suspends all other programs, as
> > expected.  System is Fedora-19 with all updates installed.
> >
> > Has anyone else seen this?  What's going on?
>
> Not here (same F19 updated):
> mihai@mtl> acroread 
> ^Z
> [1]+  Stopped                 acroread
> mihai@mtl> 
>
> I use xterm and AdobeReader_enu-9.5.5-1.i486

Also suspends for me under KDE/konsole/F19