Bug#807528: vlc: after some time, clicks on the root window no longer work

[Vincent Lefevre]

On 2015-12-10 10:34:01 +0100, Sebastian Ramacher wrote:
> Are you that this is a bug in vlc and not Qt 5, your window manager
> or X.Org?

I don't know. I'm on another machine, and the problem is reproducible
on it. Since the mouse is attached on the USB hub of the screen, I can
do this either by unplugging the mouse USB cable or by switching off
the screen and back on. In the latter case, if I do this while the
VLC window isn't visible (I'm on another desktop page) and go to the
VLC page again, the VLC window contains garbage, and if I click on it,
VLC crashes (segmentation fault) in QXcbScreen::mapFromNative in
libQt5XcbQpa.so.5.5.1 (I can give more details later). Should I report
a new bug for this?

> Are you able to reproduce the issue with a USB mouse with a
> non-broken cable?

Yes, and even on a different machine (see above).

> In any case, this is missing logs from vlc and probably X.Org and dmesg.

In X.org log, something like:

[259110.094] (II) config/udev: removing device Logitech USB Optical Mouse
[259110.108] (II) evdev: Logitech USB Optical Mouse: Close
[259110.108] (II) UnloadModule: "evdev"

Ditto on the other machine.

dmesg output:

[259110.065413] usb 3-6: USB disconnect, device number 22
[259110.065419] usb 3-6.2: USB disconnect, device number 23
[259110.112570] usb 3-6.4: USB disconnect, device number 24
[259110.276091] usb 4-5: USB disconnect, device number 14
[259110.276097] usb 4-5.4: USB disconnect, device number 15

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Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
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