RE: Dell XPS 13 Fn key bug?

[<Mario.Limonciello@dell.com>]

> -----Original Message-----
> From: Ignacy Gawędzki [mailto:bugs@qult.net]
> Sent: Thursday, February 2, 2017 11:08 AM
> To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> Cc: Limonciello, Mario <Mario_Limonciello@Dell.com>; linux-
> input@vger.kernel.org
> Subject: Re: Dell XPS 13 Fn key bug?
> 
> On Thu, Feb 02, 2017 at 08:47:48AM -0800, thus spake Dmitry Torokhov:
> > On Thu, Feb 02, 2017 at 09:40:33AM +0100, Ignacy Gawędzki wrote:
> > > On Wed, Feb 01, 2017 at 04:16:13PM -0800, thus spake Dmitry Torokhov:
> > > > OK, so 'cd' is scancode for KEY_RIGHT and 'cf' is scancode for
> > > > KEY_END, and it seems that implementation of FN handling is very
> > > > naive as it emits "release" keycodes for the state FN is currently
> > > > in, not the state it was when key was pressed.
> > > >
> > > > Ideally Dell would fix that. Mario, any chance of that?
> > >
> > > I'm just wondering whether this is still something that could be
> > > fixed or worked around in the input driver,
> >
> > Well, obviously I'd rather fix the bug at its root rather than piling
> > workarounds in the driver.
> 
> Sure, but supposing that the BIOS has to be fixed, I don't expect Dell to release
> a fix for a model that's about five years old.  Unless there's a good soul out
> there reading this and able to do anything about it.
> 

There hasn't been any maintenance BIOS releases for the L322X since around the
end of 2013.
I won't be able to get anyone to spin up resources on this unless it was a major 
security vulnerability or proverbial kitten killer type of bug.

> > > since the bug obviously doesn't
> > > show up in neither in the linux console nor in Windows.
> >
> > So where does it not work in Linux? Because keyboard driver in console
> > and elsewhere is the same. Maybe it is not noticeable when in text
> > console?
> 
> The bug appears only in X11.  Not in the console, although autorepeat is active
> there too.
> 
> > In Windows the bug might be masked if they use hardware autorepeat for
> > PS/2 keyboards. I don't know if they do or not.
> 
> I have no idea either.
> 
> --
> To err is human, to purr feline.