Red Hat Bugzilla – Bug 480489
Breaks cursor movement in vi
Last modified: 2009-03-09 19:01:01 EDT
Description of problem:
Recent 'xterm' upgrade breaks cursor movement by arrow keys in 'vim'.
When using the 'xterm' binary from old xterm-237-1.fc10 in the same environment, things are as expected.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
3. i (enter insert mode)
5. <left arrow>
cursor is at first char ('a')
cursor is at last char ('c') (that's the behavior for old xterm-237-1.fc10)
http://invisible-island.net/xterm/xterm.log.html#xterm_239 mentions fixed keyboard problems on 64 bit systems.
problem still persists with upstream xterm 239.
It can be workarounded by 'xterm -kt vt220'. 'xterm -kt tcap' produces the erronous behavior since 238; this option worked fine with 237.
It does not seem to be an 64 bit issue (remotely executed xterm on an i386 machine shows same behavior).
I can see bad behavior only with 'vim'; cursor movement in 'bash', 'mc', 'nano' is fine.
vim uses the tcap-query feature, which is compiled-in by default since #238.
I got a report dealing with colors, which ultimately was fixed by user's
configuration. I'm not sure how it would break cursor keys, but suspect
this is the place to look. On my machine - I have only a minimal .vimrc -
it seems to work as expected.
If that's where the problem lies, the feature can be disabled
via X resource setting (man xterm):
allowTcapOps (class AllowTcapOps)
Specifies whether control sequences that query the terminal's
notion of its function-key strings, as termcap or terminfo
capabilities should be allowed. The default is ``true.''
I'd like to know the particular issue if this is the case. But first
let's isolate it.
setting 'XTerm*allowTcapOps: false' fixes the issue
xterm-242-2.fc10 has been submitted as an update for Fedora 10.
xterm-242-2.fc9 has been submitted as an update for Fedora 9.
xterm-242-2.fc10 has been pushed to the Fedora 10 testing repository. If problems still persist, please make note of it in this bug report.
If you want to test the update, you can install it with
su -c 'yum --enablerepo=updates-testing update xterm'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F10/FEDORA-2009-2239
xterm-242-2.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report.
xterm-242-2.fc10 has been pushed to the Fedora 10 stable repository. If problems still persist, please make note of it in this bug report.