Re: Caps Lock affects Ctrl+keys

[Jude DaShiell]

On Mon, 20 Jan 2014, Yuri Khan wrote:

> Hello list,
> 
> I notice that, when I turn on Caps Lock, all Ctrl+letter combinations
> behave as if I pressed Ctrl+Shift+letter. My expectation is that Caps
> Lock should not affect any control modifiers (Ctrl, Meta, Super,
> Hyper), but should affect normal character input (no modifiers or just
> Shift) and might affect higher levels input (Level3, Level5 and any
> combinations thereof with or without Shift).
> 
> $ emacs -Q
> 
> M-: (read-key) RET
> press Ctrl+z
> # 26 (#o32, #x1a)
> (so far so good)
> 
> M-: (read-key) RET
> press Ctrl+Shift+z
> # 33554458 (#o200000032, #x200001a)
> (ok)
> 
> M-: (read-key) RET
> press Caps Lock to turn it on
> press Ctrl+z
> # 33554458 (#o200000032, #x200001a)
> (expected: 26 (#o32, #x1a))
> 
> M-: (read-key) RET
> with Caps Lock still on
> press Ctrl+Shift+z
> # 26 (#o32, #x1a)
> (expected: 33554458 (#o200000032, #x200001a))
> 
> This is on GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.8.2),
> in Ubuntu 13.10, GUI mode. (In -nw mode, I get 26 no matter whether
> Shift is pressed and/or Caps is on, which is understandable because in
> that mode the terminal emulator handles all keyboard input.)
> 
> Does anybody else observe this? Should I report a bug? Is there an
> easy workaround?
> 
No, the problem is in the Linux kernel emacs is by no means unique in 
this behavior.
> 

jude <jdashiel@shellworld.net>