Bug#790825: libqt5widgets5: Crashing when waking up from suspend is not connected with VLC crashing bug
Control: found -1 5.5.1+dfsg-13
On 2016-02-11 12:41:05 +0100, Maciej Kotliński wrote:
> I've seen the bug #807379 I described "'libqt5widgets5: Crashing when waking
> up from suspend..." was merged with the bug #790825 described as "vlc
> crashes when laptop is undocked" - actually it is bug #790825.
>
> I thing both bus are unrelated.
>
> VLC works fine on my laptop. Suspending/resuspending, changing external
> monitor setup do not cause any problems with VLC. I tested it with VLC
> playing a video (full screen and in window). Plasmashell crashed many times
> during these tests, VLC is stable and plays video correctly.
>
> I tested also the example program written by Sebastian Ramacher. I could not
> make the program crash. I did the same as with VLC - run the program and
> started to connect/disconnect monitors.
You need specific steps to reproduce the crash with VLC or the
example program written by Sebastian Ramacher, otherwise it is
not reproducible[*]. This may also depend on the window manager
or desktop environment. The fact that you do not notice crashes
with VLC does not mean that there are no bugs.
[*] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=807528#48
I'm copying the steps here:
To reproduce the crash:
1. Run ./helloworld
2. Move to another desktop page (my window manager: fvwm).
3. Switch off the screen and switch it on again.
4. Move to the initial desktop page. At this point, the redraw of the
helloworld window is not done (there is garbage from the previous
desktop page).
5. Click on the helloworld window. This makes the program crash.
Note: same problem with the VLC window and the same steps.
I suggest that you try the QT 5.6.0~beta+dfsg-3 Debian packages
(for which the above crash no longer occurs: tested on the same
machine, the only difference being the upgrade of these packages).
If you still get crashes with Plasmashell, then this is a different
bug. Otherwise, this is probably the same bug.
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Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
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