Re: Uncomfortable console warnings

[Benoît Minisini <benoit.minisini@xxxxxxxxxxxxxxxx>]

Le 19/03/2025 à 08:16, Jorge Carrión a écrit :
> Hi everyone,
>
> For the past few days, I've been receiving many uncomfortable warnings 
> in the console from Qt and MySQL.
> The Qt warnings are: "Using QCharRef with an index pointing outside the 
> valid range of a QString. The corresponding behavior is deprecated, and 
> will be changed in a future version of Qt." It occurs frequently, and I 
> haven't been able to pinpoint the exact cause. I think it has something 
> to do with the use of the DrawingArea... but I'm not sure.
>
> I'm using Qt5 because with Qt6 I get a lot of errors, and there are 
> applications that I can't run without any warning or message. They just 
> freeze.

As far as I remember, the warning comes from a bug inside QT5. But I 
don't have it anymore on my Manjaro (Qt 5.5.16).

As for QT6, you should not have any errors at all. Please give more 
details. At least I don't have any on my Manjaro (Qt 6.8.2).

So I guess these problems may disappear when Mint will upgrade its packages.

> The MySQL warnings are: "WARNING: MYSQL_OPT_RECONNECT is deprecated and 
> will be removed in a future version." and they occur when connecting to 
> a database.

It's a stupid warning printed by MySQL on some version. It should 
disappear as soon as that option is removed.

I don't have it on Manjaro, but this is MariaDB that is in use. Can you 
look on Mint what exactly is used? MySQL or MariaDB? And in which version?

Regards,

--
Benoît Minisini.