Bug 546028

Problem still exists in 11.2RC1

..and in 11.2 final with KDE 4.3.4 as well. Upstream problem?

https://bugs.kde.org/show_bug.cgi?id=173388 seems to be it. Saying fixed at 4.4

In 4.4 there is a settings area for device notifier and it includes a pre-set setting for play DVD with Kaffeine

(In reply to comment #3)
> https://bugs.kde.org/show_bug.cgi?id=173388 seems to be it. Saying fixed at 4.4
> 
> In 4.4 there is a settings area for device notifier and it includes a pre-set
> setting for play DVD with Kaffeine

The settings dialog from 4.3 is not embedded in the device notifier, and it contains an activity for 'play DVD'. But this activity is not associated with an inserted DVD, so there must be a mismatch.
But as long as you dont have any documentation about possible settings, or a toll that shows you as what a DVD was identified, it is fairly impossible to get it up and running....

After I found this useful article
http://www.linux-community.de/Internal/Artikel/Online-Artikel/Die-Geraeteueberwachung/%28article_body_offset%29/2
I could dig into it a little deeper.
As an example:
axel@z60m:~> solid-hardware details '/org/freedesktop/Hal/devices/volume_label_SHREK_THE_HALLS'
udi = '/org/freedesktop/Hal/devices/volume_label_SHREK_THE_HALLS'
  parent = '/org/freedesktop/Hal/devices/storage_model_DVD_RAM_UJ_830Sx'  (string)
  vendor = ''  (string)
  product = 'SHREK_THE_HALLS'  (string)
  Block.major = 11  (0xb)  (int)
  Block.minor = 0  (0x0)  (int)
  Block.device = '/dev/sr0'  (string)
  StorageAccess.accessible = false  (bool)
  StorageAccess.filePath = ''  (string)
  StorageVolume.ignored = false  (bool)
  StorageVolume.usage = 'FileSystem'  (0x2)  (enum)
  StorageVolume.fsType = 'udf'  (string)
  StorageVolume.label = 'SHREK_THE_HALLS'  (string)
  StorageVolume.uuid = ''  (string)
  StorageVolume.size = 3257440256  (0xc2289800)  (qulonglong)
  OpticalDisc.availableContent = 'Data|VideoDvd'  (0x12)  (flag)
  OpticalDisc.discType = 'CdRecordable|CdRewritable|DvdRom'  (0x3)  (enum)
  OpticalDisc.appendable = false  (bool)
  OpticalDisc.blank = false  (bool)
  OpticalDisc.rewritable = false  (bool)
  OpticalDisc.capacity = 3257440256  (0xc2289800)  (qulonglong)

is a DVD, and no kaffeine-Entry is offered.

Taking a look at /usr/share/kde4/apps/solid/actions/kaffeine_play_dvd, it contains
X-KDE-Solid-Predicate=[ StorageVolume.ignored == false AND OpticalDisc.availableContent == 'VideoDvd' ]
..this does of course not match. Changing the 'avail. content' from 'equal' to 'contains', it does not work eiher.

Why not? No idea. I would expect an entry in ~/.kde4/share/apps/solid/actions, if the user modifies these settings, but there is no such entry. Where does it go?

Update: Changing the content of  /usr/share/kde4/apps/solid/actions/kaffeine_play_dvd to 

X-KDE-Solid-Predicate=[ StorageVolume.ignored == false AND
OpticalDisc.availableContent & 'VideoDvd' ]
makes it work.
So we have a workaround, but the user should be able to do this by himself in the system settings. This is clearly not working in KDE: 4.4.00 (KDE 4.4.0) "release 222"

Updated status to 11.2 final

Just updated to 4.4.3 and see still the wrong entries in /usr/share/kde4/apps/solid/actions/kaffeine_play* - means it will also be an issue in openSUSE 11.3.

Can one please fix this upstream?

It is already fixed upstream, and the culprit is your patch [1].  So your job is now to identify the "plasma start-up error", disable this "amendment" and see if the hypothetical error still occurs.  If it does, find another way to fix it, because it is a serious usability problem the way it is now.
Of course, there is a user-level and a local-level workaround as well.
___
[1] <URL:file:///usr/src/packages/SOURCES/fix_plasma_startup_error.diff>

(In reply to comment #9)
> It is already fixed upstream, and the culprit is your patch [1].  

Not sure to understand you completely. First, I cant see you local file, second, I have no idea what you want from me....

{ zypper source-install kaffeine; } will do the trick.

Here is an excerpt from kaffeine.spec:

Patch1:         fix_plasma_startup_error.diff

I want you to remove that line or comment it out.

(In reply to comment #11)
> { zypper source-install kaffeine; } will do the trick.

..or looking at the spec-file in the buildservice.

> Here is an excerpt from kaffeine.spec:
> 
> Patch1:         fix_plasma_startup_error.diff
> 
> I want you to remove that line or comment it out.

I did not put it in, maybe you ask the maintainers of kaffeine , e.g. Jürgen Kofler.
looks like the patch reverses my proposal from comment #6

Jürgen Kofler!  Please be so kind and remove this patch!  Thanks!

Oops, Jürgen Kofler is not the mainteiner of Kaffeine.  Assigned to Stephan Binner because I found his address in the change log.  Hope this helps.

I doubt it as he doesn't work for suse anymore.

X-KDE-Solid-Predicate=OpticalDisc.availableContent & 'VideoDvd' is in /usr/share/kde4/apps/solid/actions/kaffeine_play_dvd which sounds like it should work according to comment #6

Also it shows kaffeine in the device notifier now on a dvd.


(changed during the 2011-02-20 Open-Bugs-Day about bugs for obsolete versions of openSUSE)