[Development] Bug#874054: Setting QT_LINUX_ACCESSIBILITY_ALWAYS_ON=1 has a huge negative performance impact, should not be always on

[André Pönitz]

On Wed, Sep 06, 2017 at 07:17:02AM +0000, Simon Hausmann wrote:
> Applications developed with Qt should be usable by users who do require
> assistive technologies and users who don't, out of the box.

Is that meant as a general statement, along the lines of "Applications developed
with Qt should be usable by users who do require X" or is that specific to X
== "assistive technologies"?

I would disagree with both, but for different reasons.

> technologies and users who don't, out of the box.  That is not opt-in IMO.

> It appears that this is feasible on Windows, macOS, iOS and hopefully others,
> without compromising significantly on performance or memory consumption.
> 
> If Qt applications on Linux cannot be made to work like that, then it is our
> job to fix it on whichever level necessary (system, Qt, etc.) or pay somebody
> to fix it.
> 
> If we choose not to fix this, then we are failing at our missing to make life
> easier for application developers in this aspect, because at that point it
> becomes the developer's job to achieve the same level of quality as Qt offers
> on other operating systems, out of the box.

We are failing in this respect in a lot of other areas, too, so this
hardly can be the only reason.

Andre'