[Interest] QBackingStore::endPaint dumps lots of warnings in software mode

Giuseppe D'Angelo dangelog at gmail.com
Mon Feb 19 11:37:09 CET 2018


On 19 February 2018 at 11:25, Manner RĂ³bert <rmanni at gmail.com> wrote:
> Hi,
>
> When I run an example/default qml project I get a lot of warnings about
> active painters:
>
>> QT_QUICK_BACKEND="software" ./example
>
> QBackingStore::endPaint() called with active painter on backingstore paint
> device
> QBackingStore::endPaint() called with active painter on backingstore paint
> device
>
> This happens on pretty latest archlinux (Qt 5.10.1), and I am quite sure it
> was not the case with Qt 5.9.
>
> Do you know about this issue? Is it harmless? Do you think it is worth a
> bugreport?

It's likely harmless but worth a bugreport nonetheless. Qt shouldn't
emit warnings in ordinary conditions.

Cheers,

-- 
Giuseppe D'Angelo



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