控制台下面如何改变光标形状

冰壶

现在不知道怎么回事，光标变成了一个大白块闪来闪去，怎么才能让光标变回底边的一根细线？

kobe0208

是插入模式吧?

冰壶

FrameBuffer模式，不过找到解决方案了，Kernel的文档中有说明

kobe0208

楼主解释一下啊?

冰壶

昨天发了帖子，就上irc去问老外了，结果老外说我懒，自己不google，正脸红呢，另一个老外给了个url给我，一看内容，原来就是Kernel里面的一篇文档：

1. 
   
2. 
   
3. Software cursor for VGA    by Pavel Machek <pavel@atrey.karlin.mff.cuni.cz>
   
4. =======================    and Martin Mares <mj@atrey.karlin.mff.cuni.cz>
   
5. 
   
6.    Linux now has some ability to manipulate cursor appearance. Normally, you
   
7. can set the size of hardware cursor (and also work around some ugly bugs in
   
8. those miserable Trident cards--see #define TRIDENT_GLITCH in drivers/video/
   
9. vgacon.c). You can now play a few new tricks:  you can make your cursor look
   
10. like a non-blinking red block, make it inverse background of the character it's
    
11. over or to highlight that character and still choose whether the original
    
12. hardware cursor should remain visible or not.  There may be other things I have
    
13. never thought of.
    
14. 
    
15.    The cursor appearance is controlled by a "<ESC>[?1;2;3c" escape sequence
    
16. where 1, 2 and 3 are parameters described below. If you omit any of them,
    
17. they will default to zeroes.
    
18. 
    
19.    Parameter 1 specifies cursor size (0=default, 1=invisible, 2=underline, ...,
    
20. 8=full block) + 16 if you want the software cursor to be applied + 32 if you
    
21. want to always change the background color + 64 if you dislike having the
    
22. background the same as the foreground.  Highlights are ignored for the last two
    
23. flags.
    
24. 
    
25.    The second parameter selects character attribute bits you want to change
    
26. (by simply XORing them with the value of this parameter). On standard VGA,
    
27. the high four bits specify background and the low four the foreground. In both
    
28. groups, low three bits set color (as in normal color codes used by the console)
    
29. and the most significant one turns on highlight (or sometimes blinking--it
    
30. depends on the configuration of your VGA).
    
31. 
    
32.    The third parameter consists of character attribute bits you want to set.
    
33. Bit setting takes place before bit toggling, so you can simply clear a bit by
    
34. including it in both the set mask and the toggle mask.
    
35. 
    
36. Examples:
    
37. =========
    
38. 
    
39. To get normal blinking underline, use: echo -e '\033[?2c'
    
40. To get blinking block, use:            echo -e '\033[?6c'
    
41. To get red non-blinking block, use:    echo -e '\033[?17;0;64c'
    
42. 
    
43. 
    

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