d-bus error on channel change

[Tim S]

Using Arch Linux AUR builds (both bzr and standard builds)

[tim@timbo ~]$ me-tv
Me TV 1.2.5
23/05/10 20:31:21: Device: 'DiBcom 7000PC' (DVB-T) at "/dev/dvb/adapter0/frontend0"
23/05/10 20:31:23: Changing channel to 'BBC NEWS'
23/05/10 20:31:23: Frontend::tune_to(505833330)
23/05/10 20:31:23: Waiting for signal lock ...
23/05/10 20:31:23: Got signal lock
23/05/10 20:31:23: Channel changed to BBC NEWS
23/05/10 20:31:24: org.freedesktop.DBus.Error.ServiceUnknown raised:
 The name org.gnome.ScreenSaver was not provided by any .service files

23/05/10 20:31:28: Changing channel to 'BBC ONE'
process 11472: arguments to dbus_connection_send_with_reply_and_block() were incorrect, assertion "(error) == NULL || !dbus_error_is_set ((error))" failed in file dbus-connection.c line 3346.
This is normally a bug in some application using the D-Bus library.
  D-Bus not built with -rdynamic so unable to print a backtrace
Aborted
[tim@timbo ~]$ X Error of failed request: BadWindow (invalid Window parameter)
  Major opcode of failed request: 2 (X_ChangeWindowAttributes)
  Resource id in failed request: 0x2c0008d
  Serial number of failed request: 7
  Current serial number in output stream: 9

[Tim S (timsonghurst)]

Build 1.2.1 does not crash

[tim@timbo ~]$ me-tv
Me TV 1.2.1
23/05/10 20:45:01: Device: 'DiBcom 7000PC' (DVB-T) at "/dev/dvb/adapter0/frontend0"
23/05/10 20:45:03: Changing channel to 'BBC NEWS'
23/05/10 20:45:03: Frontend::tune_to(505833330)
23/05/10 20:45:03: Waiting for signal lock ...
23/05/10 20:45:03: Got signal lock
23/05/10 20:45:03: Channel changed to BBC NEWS
** Message: Screensaver is not running!
23/05/10 20:45:22: Changing channel to 'BBC ONE'
23/05/10 20:45:23: Channel changed to BBC ONE
** Message: Screensaver is not running!
23/05/10 20:45:36: Me TV terminated
[tim@timbo ~]$

[Michael Lamothe (lamothe-deactivatedaccount-deactivatedaccount)]

Thanks for testing the branch version :) The issue and solution are simple, you are not running gnome-screensaver, right? Are you using KDE? It is *not* my intention for Me TV to fail when g-s-s is not running, but I can say that I don't really test that scenario. The code just needs to check for an NULL DBus connection before trying to call methods.

This will be fixed in the next release.

[Torsten Ruck (torsten-ruck)]

I have the same error in Archlinux 64Bit since me-tv 1.2.1

[Michael Lamothe (lamothe-deactivatedaccount-deactivatedaccount)]

This change was introduced in 1.2.2 (https://launchpad.net/me-tv/+announcement/5787). Are you saying that you had an issue with 1.2.1?

[Michael Lamothe (lamothe-deactivatedaccount-deactivatedaccount)]

Should be fixed in revision 470 but I have not tested it. Can anyone without g-s-s try this?

[Tim S (timsonghurst)]

Thanks for your quick response

Yes I am using kde4

I have been using a dummy gnome-screensaver-command script consisting of

xset dpms force on
echo "** Message: Screensaver is not running!"

as a work around.

I do not use any kind of screensaver on my system only the "xset dpms force off" command to turn the monitor off

[Tim S (timsonghurst)]

I have just re-built the arch bzr build

http://aur.archlinux.org/packages/me-tv-bzr/me-tv-bzr/PKGBUILD

I changed pkgver=470

Unfortunately on running me-tv-bzr I'm still getting the error

Maybe I'm not grabbing the 470 revision properly ???

[Torsten Ruck (torsten-ruck)]

I have still this error with pkgver=470

Me-tv starts but crashes with this error after Channel change.

[Michael Lamothe (lamothe-deactivatedaccount-deactivatedaccount)]

Please try 471, if it does not work I will need a backtrace because I cannot replicate this.

[Tim S (timsonghurst)]

Channel change crash has stopped but me-tv is running/refreshing painfully slow.

Also (even after me-tv gconf clear) I'm getting subtitles appearing and audio channel changing without request. Basically still unusable

[tim@timbo ~]$ me-tv
Me TV 1.2.5
25/05/10 13:25:42: Device: 'DiBcom 7000PC' (DVB-T) at "/dev/dvb/adapter0/frontend0"
25/05/10 13:25:44: Changing channel to 'BBC ONE'
25/05/10 13:25:44: Frontend::tune_to(505833330)
25/05/10 13:25:44: Waiting for signal lock ...
25/05/10 13:25:44: Got signal lock
25/05/10 13:25:44: Channel changed to BBC ONE
25/05/10 13:25:44: org.freedesktop.DBus.Error.ServiceUnknown raised:
 The name org.gnome.ScreenSaver was not provided by any .service files

25/05/10 13:26:34: Changing channel to 'BBC NEWS'
25/05/10 13:26:34: org.freedesktop.DBus.Error.ServiceUnknown raised:
 The name org.gnome.ScreenSaver was not provided by any .service files

25/05/10 13:26:51: Channel changed to BBC NEWS
25/05/10 13:28:33: Me TV terminated
[tim@timbo ~]$ me-tv
Me TV 1.2.5
25/05/10 13:28:39: Device: 'DiBcom 7000PC' (DVB-T) at "/dev/dvb/adapter0/frontend0"
25/05/10 13:28:41: Changing channel to 'BBC NEWS'
25/05/10 13:28:41: Frontend::tune_to(505833330)
25/05/10 13:28:41: Waiting for signal lock ...
25/05/10 13:28:41: Got signal lock
25/05/10 13:28:41: Channel changed to BBC NEWS
25/05/10 13:28:41: org.freedesktop.DBus.Error.ServiceUnknown raised:
 The name org.gnome.ScreenSaver was not provided by any .service files

25/05/10 13:29:30: Changing channel to 'ITV1'
25/05/10 13:29:32: Frontend::tune_to(481833330)
25/05/10 13:29:32: Waiting for signal lock ...
25/05/10 13:29:33: Got signal lock
25/05/10 13:29:33: org.freedesktop.DBus.Error.ServiceUnknown raised:
 The name org.gnome.ScreenSaver was not provided by any .service files

25/05/10 13:29:46: Channel changed to ITV1
Killed
[tim@timbo ~]$ X Error of failed request: BadDrawable (invalid Pixmap or Window parameter)
  Major opcode of failed request: 132 (XVideo)
  Minor opcode of failed request: 19 ()
  Resource id in failed request: 0x300008d
  Serial number of failed request: 17290
  Current serial number in output stream: 17291
me-tv-player (xine): Setting deinterlacer state to trueme-tv-player (xine): Setting mute state to falseme-tv-player (xine): Setting audio channel to 1me-tv-player (xine): Setting subtitle channel to 0

!!!where the hell did the requests come from on that last line ???!!

[Torsten Ruck (torsten-ruck)]

A new problem cannot change the channel.
me-tv shows the first channel in the channelist,but cannot click on the tabs oe settings

Me TV 1.2.5
25.05.2010 20:04:01: Device: 'ST STV0299 DVB-S' (DVB-S) at "/dev/dvb/adapter0/frontend0"
25.05.2010 20:04:02: Changing channel to 'eUrotic'
25.05.2010 20:04:02: Frontend::tune_to(12551500)
25.05.2010 20:04:03: Auf Signalsperre warten …
25.05.2010 20:04:03: Signalsperre erhalten
25.05.2010 20:04:03: Channel changed to eUrotic
25.05.2010 20:04:03: org.freedesktop.DBus.Error.ServiceUnknown raised:
 The name org.gnome.ScreenSaver was not provided by any .service files

Beendet
[outer@Linuxmoped ~]$ X Error of failed request: BadDrawable (invalid Pixmap or Window parameter)
  Major opcode of failed request: 132 (XVideo)
  Minor opcode of failed request: 19 ()
  Resource id in failed request: 0x2e0006a
  Serial number of failed request: 1045
  Current serial number in output stream: 1046
me-tv-player (xine): Setting deinterlacer state to trueme-tv-player (xine): Setting mute state to false

[Michael Lamothe (lamothe-deactivatedaccount-deactivatedaccount)]

"eUrotic" sounds like a very interesting channel indeed ;)

Try the latest, I'm still trying to get a good CPU balance between the threads.

[Tim S (timsonghurst)]

473 behaves the same as 471 for me

Would it be possible to add an entry to me-tv gconf xml to specify an alternative screen saver nudge command ?
And a option to completely turn the screensaver nudge call off ? because if I'm only listening to a dvb-t radio station I may want the screensaver/dpms to activate

I'm sure there was something there in the past to do this.
For myself the command would be, xset dpms force on, as i don't use any kind of screensaver.

Of course if no alternative command is given, me-tv will carry on gnome nudging as usual.

[Michael Lamothe (lamothe-deactivatedaccount-deactivatedaccount)]

Please try revision 479.

[Tim S (timsonghurst)]

Yes yes yes !

All looks well now, I will continue testing.

Top Man !

[Tim S (timsonghurst)]

Whoops

System had not refreshed to new build properly.

Now me-tv does not freeze, but audio channel keeps changing after a few seconds and subtitles switch on by themself.

After changing these settings and restarting it just happens again

[tim@timbo ~]$ me-tv
Me TV 1.2.5
28/05/10 15:07:37: Device: 'DiBcom 7000PC' (DVB-T) at "/dev/dvb/adapter0/frontend0"
28/05/10 15:07:38: Changing channel to 'BBC TWO'
28/05/10 15:07:38: Frontend::tune_to(505833330)
28/05/10 15:07:38: Waiting for signal lock ...
28/05/10 15:07:38: Got signal lock
28/05/10 15:07:38: Channel changed to BBC TWO
28/05/10 15:07:38: org.freedesktop.DBus.Error.ServiceUnknown raised:
 The name org.gnome.ScreenSaver was not provided by any .service files

me-tv-player (xine): Setting deinterlacer state to true
me-tv-player (xine): Setting mute state to false
me-tv-player (xine): Setting audio channel to 1
me-tv-player (xine): Setting subtitle channel to 0/nme-tv-player (xine): Setting audio channel to 0
28/05/10 15:08:16: Changing channel to 'BBC ONE'
28/05/10 15:08:16: org.freedesktop.DBus.Error.ServiceUnknown raised:
 The name org.gnome.ScreenSaver was not provided by any .service files

me-tv-player (xine): Setting deinterlacer state to true
me-tv-player (xine): Setting mute state to false
28/05/10 15:08:19: Channel changed to BBC ONE
me-tv-player (xine): Setting audio channel to 1
28/05/10 15:08:27: Me TV terminated
[tim@timbo ~]$

audio channel needs to stay at 0, and subtitles needs to stay off

[Tim S (timsonghurst)]

By audio stream I mean audio channel, that should stay at 0:eng.

The audio stream and subtitles change on each channel change

[Michael Lamothe (lamothe-deactivatedaccount-deactivatedaccount)]

Do you have a preferred language set in the preferences?

[Tim S (timsonghurst)]

yes

[Michael Lamothe (lamothe-deactivatedaccount-deactivatedaccount)]

Ummm, well that's what that setting does. It selects audio/subtitle streams automatically based on that setting. This is intentional. Is there something that I'm missing? If you don't want it to automatically select the audio/subtitle channel then clear that setting.

[Tim S (timsonghurst)]

if you are refering to this :-

<entry name="preferred_language" mtime="1275058744" type="string">
  <stringvalue>eng</stringvalue>

it certainly does not mess up things in version 1.2.0 that I'm using, if things have changed it is very misleading, to me it is asking interface language.

I will switch back to bzr 479, with no "preferred_language" and report back

[Tim S (timsonghurst)]

After removing all the me-tv xml stuff in ~/gconf/ and leaving the preferences "preferred language" and "Text Encoding" blank on first run, it now runs fine.

So what is the point of a subtitles none/0:eng under Video menu, if it is ignored after one sets their language pref etc ???

Anyways.... Thank-you for all your hard work in sorting this bug out, treat yourself to a few amber nectars.

[Michael Lamothe (lamothe-deactivatedaccount-deactivatedaccount)]

The automatic selection of audio/subtitle streams feature is broke in 1.2.0 (https://bugs.launchpad.net/me-tv/+bug/558578) and has been fixed. The interface language is set by your system when you installed it. It's not an individual application setting.