It seems that vi(1) when moved to DU V4.0 has had the flow control
software removed. If you utilise a 3.2 version of vi(1) then there are
no problems.
Mark.Schubert_at_faulding.com.au
>-----Original Message-----
>From: Schubert, Mark
>Sent: Thursday, September 25, 1997 4:24 PM
>To: 'alpha-osf-managers_at_ornl.gov'
>Subject: Serial VT terminals and flow control on V4.0B
>
>We are experiencing problems with serail terminals (VT220 ->VT420) on DEC
>Unix V4.0B.
>
>Basically it seems that the flow control is not being handled by Unix at all.
>
>If I am connected using a VT420 at 19200 baud via a DECserver and I use vi to
>edit a 300 line text file and then sit on the down arrow I get a few pages
>down and then get all this crap on my screen and in the file. The crap
>consists of ^S etc. which are flow control characters.
>
>If I try the same thing on a V3.2C machine it works fine!
>
>If I try it using a 9600 baud connection it works better although with a bit
>of effort you can still upset the flow control.
>
>I expect that the terminal cannot display the stuff fast enough when it is
>being pushed down the line at 19200 baud. As Unix is not handling the flow
>control properly all the ^S characters etc. are ending up in the file.
>
>By the way the stty settings are as follows:
>
>#2 disc;speed 9600 baud; 24 rows; 80 columns
>erase = ^?; werase = ^W; kill = ^U; intr = ^C; quit = ^\; susp = ^Z
>dsusp = ^Y; eof = ^D; eol = <undef>; eol2 = <undef>; stop = ^S
>start = ^Q; lnext = ^V; discard = ^O; reprint = ^R; status = <undef>
>time = 0; min = 1
>-parenb -parodd cs8 -cstopb hupcl cread -clocal -crtscts
>-ignbrk brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl -iuclc
>ixon -ixany -ixoff imaxbel
>isig icanon -xcase echo echoe -echok -echonl -noflsh -mdmbuf -nohang
>-tostop echoctl -echoprt echoke -altwerase iexten -nokerninfo
>opost -olcuc onlcr -ocrnl -onocr -onlret -ofill -ofdel tabs -onoeot
>
>Please help.
>
>TIA,
>MArk.Schubert_at_faulding.com.au
Received on Fri Oct 03 1997 - 10:03:07 NZST