[Bug 1767314] Re: Ubuntu Bionic vi/vim not working correctly

[flashydave]

Further investigation with a recompiled version more recent than that
shipped with 18.04 yields that syntax highlighting failure is caused by
redrawtime being exceeded  - often triggered after using G to move to
the end of the file. It is not possible to set "syntax on" manually at
that point as it immediatetly gets disabled again unless you move to the
start of the file with g.

This explains the "persistence" due to the "jump to the previously
edited line in the file" setting being set - but forgetting it upon
deletion of .viminfo as this is where this Info is stored.  Without it
vi opens with the cursor at line 1.

In my case this problem has occurred following an upgrade and has never
happened before on the same hardware running the same applications for
many years with lots of files being edited multiple times every day -
day in day out.  Ie something in the timing dynamics when running vi has
changed wirh 18.04

See https://github.com/vim/vim/issues/2790 for further discussion and
possible workarounds.

** Bug watch added: github.com/vim/vim/issues #2790
   https://github.com/vim/vim/issues/2790

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https://bugs.launchpad.net/bugs/1767314

Title:
  Ubuntu Bionic vi/vim not working correctly

Status in vim package in Ubuntu:
  Confirmed

Bug description:
  The vim default configuration in Bionic does not match Ubuntu 17.10
  nor Centos 7 and is hard to use. It auto-inserts tabs or spaces, and
  the '/' search mode command works differently (pressing enter is
  required before you can use cursors left/right).

  For some discussion, please see
  https://askubuntu.com/questions/1026820/vi-vim-usage-in-ubuntu-bionic-
  not-normal/1028684#1028684

  Setting :set nocompatbile in ~/.vimrc fixes it, but this should not be
  required.

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