Bug#1025997: libqt5core5a: Qt applications sometimes crashing at display configuration changes or power savings

[Bernhard Übelacker <bernhardu@mailbox.org>]

On Tue, 13 Dec 2022 01:28:39 +0100 =?UTF-8?Q?Bernhard_=c3=9cbelacker?= <bernhardu@mailbox.org> wrote:

> Dear Maintainer,
> I experienced since about a month ago sometimes crashes in applications
> running in fullscreen, when doing display configuration changes
> or lately when waking up the screen from power saving.
> (See below for an example backtrace.)
>
> I opened these upstream bug reports, where the
> Qt bug received a patch hopefully fixing this issue:
>
>    https://bugs.kde.org/show_bug.cgi?id=461723
>    https://bugreports.qt.io/browse/QTBUG-109226
>    https://code.qt.io/cgit/qt/qtbase.git/commit/?id=6a3627b6c5aa5109a80024f3d7b0f938504f7ffe
>    (Unfortunately it looks like the qt-5.15 cerry-pick is not publicly visible.)
>
> I create this bug also to ask how chances are that this
> commit reaches Qt before or during the freeze period?
>
> Kind regards,
> Bernhard

I forgot to mention, this might also be related to a dual monitor setup.
With "power savings" is meant just the monitors turning off.

Short after opening this bug the Qt "Gerrit Bot" added the information
the fixed upstream version seems to be 5.15.12.

And reading up release plans [1] I think 5.15.12 is way out of reach,
therefore the next option might be picking the patch into the
packaged by Debian version 5.15.7, depending if there arrive other
reports about this issue.

[1] https://bugs.debian.org/1025715

Kind regards,
Bernhard