Re: (no subject)

2007-10-09 Thread grok
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Re: Screen window closes on application exit

2007-03-29 Thread grok
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  Howsabout when you want certain programs only to exit to
  a shell commandline when you decide to manually exit
  them, now and then..? i.e. not necessarily run the same
  program again, or with the same input data file -- but
  you want that screen to stay right there?
 
 I'm not sure I understand what you're looking for.  Can
 you give an example?

I think the context was clear: simply to have a zombie exit
to a shell. Obviously, going into detail here was a
distraction.


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Re: how is zmodem used with GNU screen?

2006-11-13 Thread grok
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 On Wed, Oct 25, 2006 at 10:19:24PM -0700, Adam Monsen wrote:
  Can anyone give me an ultra brief intro to how to use zmodem with GNU
  screen? I've got lrzsz working, I'm just not sure how to use it.
 
 It depends whether screen is in the middle of a sz/rz transfer or
 it is used as an endpoint.
 
 1) In the middle:
 
 Use zmodem pass in that case. This means that screen will pass
 on all zmodem data. Example: your terminal emulation supports
 zmodem, you log into a server and reconnect to your screen session.
 In the session you need to transfer a file home, so you call
 sz filename in a window.
 
 2) As an endpoint:
 
 You use screen as your terminal emulator, i.e. you have connected
 the console of some other machine to your serial line and want
 to transfer a file from the other machine to your host. So you
 configure zmodem catch and run sz filename on the host.
 Screen will intercept the zmodem sequences and prompt you
 with a rz prompt. You just confirm this by pressing return and
 the file will get transfered.

Thanx for reminding me to check a long-standing issue, based
on this information. Overcame that little block (it's 98%
the dokumentation, AFAIC).

Not much need for Zmodem these days, but there're some.


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screen with svgalib, etc.?

2006-07-10 Thread grok
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A lot of programs seem to have issues with the pts/*
terminals (/dev/pts/* ?) used by screen. One such would be
svgalib. Unfortunately, I've never really figured this
terminal screen stuff out.

Pointers?


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Re: screen with svgalib, etc.?

2006-07-10 Thread grok
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 So you're saying it works with an image viewer, and not a
 movie viewer?  You never said anything like that in your
 initial post.  Maybe you should fully describe what you
 are doing and the problem you're seeing.

I didn't imply anything in my first post.
And it's just as I stated in my second post:


 svgalib no doubt requires the ability to access direct
 hardware or somesuch to draw graphics on a tty, and only
 then a VGA one (serial terminal won't work).  There's no
 way that screen could handle that situation.  At that
 point you want remote X Windows.
 
 
 Which svgalib does do, writing to my real (unused) tty
 console #3 when I'm in a screen -- this is all local, btw --
 and I want to look at some jpegs, etc. (there are still
 issues when I happen to be in another terminal somewhere
 else when svgalib wants to show me that pic, after loading
 it).
 
 What I'm really asking here, I guess, is: what's stopping me
 from using e.g. mplayer -- with svgalib -- the same way,
 from any screen, but to show me a movie? mplayer actually
 starts to write to terminal #3 (then it tried #4 the next
 time?!), but bails out with the error:
 
   ioctl(VT_WAITACTIVE): Operation not permitted
 
 
 There's some vt/screen skullduggery going on here...


An ioctl() error is also what I got before I set mplayer
setuid. What ioctl(VT_WAITACTIVE) means here I do not know. 


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