Ruby 2.6.11 many keycodes are wrong

[Hugo V. <hvw...@ya...>]

Hi,

The Ruby patches for any of the 2.6.11 versions
produce many wrong keycodes.

E.g, Ctrl-0, Ctrl-1, Ctrl-9 do nothing
Alt-anything produces the anything key only without
the hiorder bit, so it looks like a release code for
the anything key.

In Ruby 2.6.10 Alt-P produces 2 bytes in the buffer:

13:53:09->==================================== 
13:53:09->fd = 3  
13:53:11->Executed read(3, buf, 129) 
13:53:11->Read 2 bytes into buf (1b 70 ) 
13:53:11->Pass 1  
13:53:11->High order bit of 1b is off: Press 
13:53:11->Byte 1 is 1b 
13:53:11->keycode  27 press (Alt key)
13:53:11->Pass 2  
13:53:11->High order bit of 70 is off: Press 
13:53:11->Byte 2 is 70 
13:53:11->keycode 112 press (p key)

and that translates to Alt held down and p pressed.

But in Ruby 2.6.11 you get only one byte out of that
read, like this:

14:22:02->fd = 3  
14:22:04->Executed read(3, buf, 129) 
14:22:04->Read 1 bytes into buf (f0 ) 
14:22:04->Pass 1  
14:22:04->High order bit of f0 is on: Release 
14:22:04->Byte 1 is f0 
14:22:04->keycode 112 release (p key)

which looks like you released the p key.

So people must be using Ruby 2.6.11 with touchscreens,
because using a keyboard with any control or meta key
is a mess.

BTW there is no problem with the vanilla 2.6.11 code.
This is kernel code because there is no difference in
the user programs that use it.

Regards,

Hugo Vanwoerkom






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