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

[Lisandro Damián Nicanor Pérez Meyer]

El 3 sep. 2017 4:39 p.m., "Samuel Thibault" <sthibault at debian.org> escribió:

Samuel Thibault, on dim. 03 sept. 2017 21:17:12 +0200, wrote:
> I have checked with a vanilla reinstall of Debian 9, using the Mate
> desktop, and Qt 5.7.1.
>
> When QT_LINUX_ACCESSIBILITY_ALWAYS_ON is not set, I don't see Qt
> applications in accerciser, only the Mate applications. If I set
> QT_LINUX_ACCESSIBILITY_ALWAYS_ON, I do see them.
>
> On my current desktop, I have Qt 5.9.1, I made quick tests, it seems
> it behaves as I expect, so perhaps we can indeed avoid setting
> QT_LINUX_ACCESSIBILITY_ALWAYS_ON now. I'll retest with a vanilla
> reinstall of debian testing, to be sure.

Yes, a vanilla reinstall behaves as expected.  So we can drop that
variable, good :)

Samuel


So you mean that something changed between 5.7 and 5.9? In that case I
should try to track the necessary changes and try to backport them.

Thank you all for jumping in!
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