Re: screen with svgalib, etc.?

[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. 


- -- grok.



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