Re: [Qemu-devel] [PATCH] input-linux: toggle for lock keys

[Gerd Hoffmann]

On Mon, Aug 27, 2018 at 01:49:22PM +0000, Ryan El Kochta wrote:

> I personally use the Scroll Lock key. On Linux, Scroll Lock (along
> with all the other lock keys) is easy to disable with an xmodmap
> command. On Windows (or, I'd assume, other guests), it requires third
> party software, which is why it's likely easier to just filter them
> out from QEMU.

Ok, disable with xmodmap is a reasonable approach for that key.
I think it would be a good idea to document that.

I'd suggest to add a single option, to configure alternative toggle
key(s), with just a few hard-coded variants which actually make sense.
Something like grab-toggle={two-shift,scroll-lock}.  Not sure whenever
we need the other lock keys.  scroll lock is probably the
least-frequently used key and therefore the best choice for the
purpose.

In case scroll-lock is selected we can automatically ignore it, without
ignore_scroll_lock=off option.

cheers,
  Gerd