/[emacs]/emacs/etc/PROBLEMS
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revision 1.84 by walters, Sat Nov 17 07:20:23 2001 UTC revision 1.85 by eliz, Sat Nov 17 17:25:41 2001 UTC
# Line 250  recommended way of turning on Font-lock Line 250  recommended way of turning on Font-lock
250  global-font-lock-mode RET" or by customizing the variable  global-font-lock-mode RET" or by customizing the variable
251  `global-font-lock-mode'.  `global-font-lock-mode'.
252    
253    * Emacs on a tty switches the cursor to large blinking block.
254    
255    This was reported to happen on some GNU/Linux systems which use
256    ncurses version 5.0, but could be relevant for other versions as well.
257    These versions of ncurses come with a `linux' terminfo entry, where
258    the "cvvis" capability (termcap "vs") is defined as "\E[?25h\E[?8c"
259    (show cursor, change size).  This escape sequence switches on a
260    blinking hardware text-mode cursor whose size is a full character
261    cell.  This blinking cannot be stopped, since a hardware cursor
262    always blinks.
263    
264    A work-around is to redefine the "cvvis" capability so that it
265    enables a *software* cursor.  The software cursor works by inverting
266    the colors of the character at point, so what you see is a block
267    cursor that doesn't blink.  For this to work, you need to redefine
268    the "cnorm" capability as well, so that it operates on the software
269    cursor instead of the hardware cursor.
270    
271    To this end, run "infocmp linux > linux-term", edit the file
272    `linux-term' to make both the "cnorm" and "cvvis" capabilities send
273    the sequence "\E[?25h\E[?17;0;64c", and then run "tic linux-term" to
274    produce a modified terminfo entry.
275    
276  * Problems in Emacs built with LessTif.  * Problems in Emacs built with LessTif.
277    
278  The problems seem to depend on the version of LessTif and the Motif  The problems seem to depend on the version of LessTif and the Motif

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