Public bug reported:

Binary package hint: mythplugins

System: Ubuntu 8.10 Alpha 6
zoneminder: 1.23.3-3
mythzoneminder: 0.21.0+fixes18379-0ubuntu1

Installed package mythzoneminder which loads fine in mythfrontend
however will not display any live video feeds. When opening the live
stream window only a black box is shown. This occurs for GL, XV and RGB
display options.

mythzmserver output:
: sudo mythzmserver -c /etc/zm/zm.conf
loading zm config from /etc/zm/zm.conf
ZM is version '1.23.3'
Listening on port: 6548
Failed to shmget for monitor: 1
ENOENT - no segment exists for the given key
Failed to shmget for monitor: 3
ENOENT - no segment exists for the given key

mythfrontend (-v most) output:
2008-10-02 09:44:03.099 MythZoneMinder: Using Xv for display
2008-10-02 09:44:03.111 Found 0 Xv adaptors
2008-10-02 09:44:03.111 WARNING: Couldn't find free Xv adaptor with RGB XvImage 
support
2008-10-02 09:44:03.111 Falling back to XImage - slow and ugly rescaling
2008-10-02 09:44:03.111 write -> 26 20      GET_LIVE_FRAME[]:[]1
2008-10-02 09:44:03.111 read  <- 26 46      ERROR - Cannot get shared memory 
pointers[]:[]
2008-10-02 09:44:03.111 The server failed to process the command. The error 
was:-
                        ERROR - Cannot get shared memory pointers
2008-10-02 09:44:03.214 write -> 26 20      GET_LIVE_FRAME[]:[]1
2008-10-02 09:44:03.214 read  <- 26 46      ERROR - Cannot get shared memory 
pointers[]:[]
2008-10-02 09:44:03.214 The server failed to process the command. The error 
was:-
                        ERROR - Cannot get shared memory pointers
2008-10-02 09:44:03.315 write -> 26 20      GET_LIVE_FRAME[]:[]1
2008-10-02 09:44:03.315 read  <- 26 46      ERROR - Cannot get shared memory 
pointers[]:[]
2008-10-02 09:44:03.315 The server failed to process the command. The error 
was:-
                        ERROR - Cannot get shared memory pointers

Error message repeats for as long as live stream screen is open.
(Whilst there is an error above saying that Xv could not be loaded, this is 
unrelated as the same problem is experienced on another system where Xv works 
normally)

Zoneminder is setup correctly and video can be displayed via web
interface so the problem is with myth zoneminder. Same setup worked with
mythzoneminder under 8.04.

Suggested cause:
This is possibly due to a limitation of mythzoneminder:
http://www.mythtv.org/wiki/index.php/MythZoneMinder#Dependencies 
Above site states that mythzoneminder only works with zoneminder versions 
1.22.2 and 1.22.3 whereas Intrepid has upgraded to zoneminder 1.23.3. Not 100% 
sure this is the cause of the problem, but it is a possibility. 

If the versioning issue above is the issue, it will obviously need to
wait until the problem is fixed upstream, but in the mean time it should
be documented somewhere that package mythzoneminder will not work on
Intrepid.

** Affects: mythplugins (Ubuntu)
     Importance: Undecided
         Status: New

-- 
[8.10] mythzmserver will not display live feed
https://bugs.launchpad.net/bugs/276942
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