Plasma 5.12 goal: let's get Wayland ready!

[Marco Martin]

On Wed, Oct 11, 2017 at 5:20 PM, Martin Flöser <mgraesslin at kde.org> wrote:
>> yep, i like it and  i'll try!
>> some times tough some help is needed to even figure out where the problem
>> is...
>> for tme the thing that makes my laptop unusable with wayland is a very bad
>> flicker in many qwidget apps, especially kate and to a lesse extent
>> dolphin are
>> pretty much blinking like disco lights just by moving the mouse on top of
>> the
>> app window.
>>
>> Where should i start to look about that?
>
>
> Most likely in Qt. I had seen this once in kate as well and it looked to me
> like either Qt is not updating correctly (single buffering?) or what I
> consider more likely this is a tooltip issue. At least in dolphin I see that
> tooltips open and are not properly marked as a transient. If it is now under
> the mouse we get flicker, because it opens, gains focus and dolphin then
> destroys it again and the complete process repeats. I hope that the Qt 5.9.2
> fixes that.

one thing i noticed which i don't know if it's of any indication, is
that on weston (and kate still using the wayland qpa) that flicker
doesn't happen

--
Marco Martin