I've never used brltty, so can't speak to it directly, but I have used
ubuntu (and still do), as well as screen and another one I can't remember
at the moment, and neither one of those caused lynx to abort when
switching sessions. It might be worth asking on the blind linux list, or
on the brltty list (I don't have the info for joining those lists, as I'm
not a member of either one, I tend to use linux without braille, only
speech).
It's possible it's something in brltty (which would make sense), though
why it would do this, I have no idea. However, I understand the brltty
developer is quite responsive, and may even log directly into your machine
(if possible and given permission) to fix issues, I know he's done this
before for others.
It's likely asking him would do more good than posting here.
I do use lynx periodically, but most of my linux/BSD machines are having
trouble, so I don't use them as often as I'd like, other than my softcon
site, which is actually using a virtual host from linode).
On Fri, 15 Feb 2019, Mouse wrote:
The only thing I have been able to find is if I do a -trace the
trace file shows a GETCH0 got 0x just before lynx closed
down.
As Thorsten Glaser said, this is exactly how it would behave if it
received a legitimate EOF.
Indeed. And the suggestions are all good ones. I just have three
minor remarks:
(1)
(e.g.: changing stdio settings like vmin & vtime).
Minor nit: those are tty settings, not stdio settings.
(2)
Essentially nothing about this has to do with Lynx,
We don't actually know that at present. It could be that there is
something wrong in lynx that's making one piece of code think another
got an EOF from the tty when it actually didn't. Unlikely, yes, but no
more so than some of the other theories given.
(3)
And, finally, are there any other ways of switching vtys? Some systems
support software-initiated switching as well as keyboard-initiated
switching; I don't know Ubuntu (or for that matter any Linux) well
enough to know whether it does. If so, it might be worth trying
switching other ways to see if it makes a difference. (Of course, this
could be difficult to test unless you have another computer you can ssh
in from or some such.)
Basically, at this point we're still in the information-collection
phase, trying to probe the envelope of the problem to see if we can get
any hints as to where it might be.
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