Parole media player segfaults when seeking forward in a video file

[mikewhatever]

Parole starts playing video, but the second I click or drag the slider to seek forward, playback stops, and the window closes.
If launched from a terminal window, it looks like this:
$ parole test.mp4

** (parole:3145): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-ELwoGajH7L: Connection refused

(parole:3145): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:2149:29: Expected a valid selector
Protocol error: bad 3 (Window); Sequence Number 5
 Opcode (20, 0) = GetProperty
 Bad resource 930383683 (0x37748743)
 at -e line 15.
Segmentation fault (core dumped)

The machine is a Pentium 4 with Nvidia Geforce 6200 graphics, with nvidia-304 driver, running Xubuntu 16.04, current updates installed.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: parole 0.8.1-1ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-7.22-generic 4.4.2
Uname: Linux 4.4.0-7-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.20-0ubuntu3
Architecture: i386
CurrentDesktop: XFCE
Date: Fri Feb 26 19:49:54 2016
InstallationDate: Installed on 2016-01-23 (33 days ago)
InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Alpha i386 (20160123)
SourcePackage: parole
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sitsofe Wheeler (sitsofe)]

Attaching partial backtrace.

#0 0xa44e87f4 in seeked_cb (player=0xa4803280, provider=0x2) at mpris2-provider.c:787
#5 0xa6fcb497 in <emit signal 0x7559f6ec "seeked" on instance 0xa4803280 [ParolePluginPlayer]> (instance=0xa4803280, detailed_signal=0x7559f6ec "seeked") at /build/glib2.0-Spm2To/glib2.0-2.48.0/./gobject/gsignal.c:3481
    #1 0xa6fb229c in g_cclosure_marshal_VOID__DOUBLE (closure=0x75a87a60, return_value=0x0, n_param_values=2, param_values=0xafffe610, invocation_hint=0xafffe5b4, marshal_data=0x0) at /build/glib2.0-Spm2To/glib2.0-2.48.0/./gobject/gmarshal.c:1680
    #2 0xa6fafb6b in g_closure_invoke (closure=0x75a87a60, return_value=0x0, n_param_values=2, param_values=0xafffe610, invocation_hint=0xafffe5b4) at /build/glib2.0-Spm2To/glib2.0-2.48.0/./gobject/gclosure.c:804
    #3 0xa6fc1ffc in signal_emit_unlocked_R (node=node@entry=0x759bc5f8, detail=detail@entry=0, instance=instance@entry=0xa4803280, emission_return=0x0, instance_and_params=0xafffe610) at /build/glib2.0-Spm2To/glib2.0-2.48.0/./gobject/gsignal.c:3629
    #4 0xa6fcac96 in g_signal_emit_valist (instance=0xa4803280, signal_id=413, detail=0, var_args=0xafffe800 "\020\350\377\257v\254Wux\341\214ug\030\373\246x\341\214u\200\062\200\244") at /build/glib2.0-Spm2To/glib2.0-2.48.0/./gobject/gsignal.c:3385
#6 0x7557ac99 in parole_plugin_player_media_seeked_cb (gst=0x758ce178 [ParoleGst], player=0xa4803280 [ParolePluginPlayer]) at parole-plugin-player.c:290

[Sylvain Viart (sylvain-viart)]

it happens every time on a up to date xubuntu 16.04.

Any hint?

[daniel CURTIS (anoda)]

Hello. I'm having similar problem, but in my case it's about playing an audio CD. (Trying to move a song time forward for a few seconds via manually moving time bar, Parole is closing immediately.) Here's my bug report: <https://bugs.launchpad.net/ubuntu/+source/parole/+bug/1694115>

Best regards.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1550444

[Fixitman Arizona (fixitmanarizona)]

Seems fixed in later version 0.9.1
I installed on Xubuntu 16.04.3 32-bit via .deb download and software center (because I forgot I had
gdebi package manager)
You can install from links on following page OR ppa
http://ppa.launchpad.net/ubuntuhandbook1/apps/ubuntu/pool/main/p/parole/?C=M;O=A

for Xubuntu or Ubuntu 16.10 or 17.04 version 0.9.2 is also available
Parole 0.9.2 requires GTK >= 3.20 Ubuntu 16.04 won’t be able to update to this release with the default GTK+3 libraries.

See: http://ubuntuhandbook.org/?s=parole

[daniel CURTIS (anoda)]

Hello.

Because 'Parole' is a part of an Universe section, it will be - probably - not updated by Developers in Xenial/16.04 (please see rules about updating packages, because I can be wrong). Of course, your method Fixitman Arizona is okay.

By the way: please notice Gimp situation [1]: there are multiple security issues fixed in various Gimp versions and Releases - even in 14.04/Trusty, which is older than Xenial, right? Never mind. I have no idea why there is no security update for Gimp in Xenial.

Anyway, I solved problem with segfaults described by mikewhatever - an original poster by using AppArmor. Because in the past I've created a profile for Gimp, I decided to check what will happen when `mpris2.so` library will be blocked. And it worked!

,----[ AppArmor rule ]
| deny /usr/lib/@{multiarch}/parole-0/parole-mpris2.so mr,
`----

With above rule in use, I can play any supported file/video and as Original Poster wrote: "click or drag the slider to seek forward (...)" and so on.

Thanks, best regards.

_________________
[1] https://bugs.launchpad.net/ubuntu/+source/gimp/+bug/1773561