playing video's in 11.04 beta

have you installed ubuntu-restricted-extras?
have you install w32codecs from medibuntu? (I assume 32bit Gnome desktop)
Have you logged a bug?
Do other players work ok?

I haven't logged any bug as of yet, all other players work ok all are fine with music and im having no problems streaming, its only when im watching movies i have downloaded that i am having this issue.

I have just installed the ubuntu-restricted- extras and the w32codecs

i tried to play a movie in each of the 3 players i have and the issue still persists.

Which player(s) have you tried?

i have just created a bug and i have tried VLC, Banshee and Movie Player

it seems to happen if you try to adjust the size of your viewer, ei: trying to switch to full screen viewing, that seems to trigger it off

Could be anything, compiz, unity, xorg. Without research of logfiles, terminal outputs which may indicate some error messages, hardware specifics it's just jigsaw.
You need to assigne a package when reporting a bug and report it with apport in order to get out as much info as possible to developers.
https://help.ubuntu.com/community/ReportingBugs

Anyway, since there is now a report you can upload further system information by opening a terminal: ctrl+alt+t
Type:
apport-collect 771433

For future reference.
https://wiki.ubuntu.com/X/Reporting

i have just come across this problem again, i noted the time and looked into my syslog to see if i can find anythin related to this in there (apport could get no further info)

i have found this in my syslog:

Apr 28 13:54:51 danny-desktop gnome-session[1449]: WARNING: Detected that screensaver has left the bus
Apr 28 13:54:51 danny-desktop gdm-simple-slave[2345]: WARNING: Unable to load file '/etc/gdm/custom.conf': No such file or directory
Apr 28 13:54:51 danny-desktop acpid: client 1184[0:0] has disconnected
Apr 28 13:54:51 danny-desktop acpid: client connected from 2353[0:0]
Apr 28 13:54:51 danny-desktop acpid: 1 client rule loaded

i found this in my authlog:

Apr 28 13:54:51 danny-desktop gnome-keyring-daemon[1430]: dbus failure unregistering from session: Connection is closed
Apr 28 13:54:51 danny-desktop gnome-keyring-daemon[1430]: dbus failure unregistering from session: Connection is closed
Apr 28 13:54:51 danny-desktop polkitd(authority=local): Unregistered Authentication Agent for unix-session:/org/freedesktop/ConsoleKit/Session2 (system bus name :1.30, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_GB.UTF-8) (disconnected from bus)

kernlog:

Apr 28 13:54:52 danny-desktop kernel: [ 1508.086745] agpgart-via 0000:00:00.0: AGP 3.5 bridge
Apr 28 13:54:52 danny-desktop kernel: [ 1508.086777] agpgart-via 0000:00:00.0: bridge is in legacy mode, falling back to 2.x
Apr 28 13:54:52 danny-desktop kernel: [ 1508.086785] agpgart-via 0000:00:00.0: putting AGP V2 device into 4x mode
Apr 28 13:54:52 danny-desktop kernel: [ 1508.086840] pci 0000:01:00.0: putting AGP V2 device into 4x mode

Hopefully this helps

thought i would add further information to this for you, i have downloaded and installed 11.04 formatting my hd in the process and this error still occurs.

apport did not collect any further info once again.

i think i might re-install 10.10 i did not have this issue with that build so ill continue to use that one.