Hi,
the mentioned problem persists, even though we disconnect the signal
and reconnect during capture. Atm only with Macs; seems like they
communicate with the beamer a lot, and try various resolutions on connecting,
before staying with one.
The other thing that might have an influence is that we provide a
1024x768 fallback image other than the test pattern; maybe this causes
the reconnect procedure to fail?
The mentioned video should now be accessible for public, if you want
to have a look. Would be great if this issue could be resolved on
softwareside. Things like this dont happen on a Windows system, it
seems.
Regards, Andreas
PS: and yes, we just ordered a video scaler for testing.
Ruediger Rolf schrieb am Wed, 5 Oct 2011 betreff "Re: [Matterhorn-users]...":
Hi Andreas,
I can not open the link that you send. But nevertheless I guess I know the
problem, and the reason is quite simple, because the confidence monitoring is
working now we had a chance find the conditions when this error happens:
You can not change the resolution of a computer already connected to the
Epiphan device. The device does not send an event if something like this
happens, so matterhorn can not react on this, and turn on scaling.
If something like this happens you can reconnect the VGA. In this case the
resolution is checked again.
If something like this might happen too frequently in your lectures: get a
vga-scaler that you place before the epiphan device.
Rüdiger
Am 05.10.2011 08:53, schrieb [email protected]:
Hi,
once more I need advice on how to handle a capture problem: when switching
between devices with delay in switching or quick resolution changes, we
*sometimes* get the effect, that the resulting capture is corrupted
afterwards.
Corrupted means: yes, the screen is captured, but mostly unreadable and
like 5 times repeated vertically.
Have a look at
http://matterhorntest.zserv.tuwien.ac.at/engage/ui/watch.html?id=35b051db-363f-4a0e-ac36-0474d371cfdf
to see what I mean (beginning with minute 8)
We use MH 1.2 on Ubuntu 10.10 and the recommended settings for the Epiphan
VGA2USB-device.
Any input to what is the cause and what can be done to improve the
situation welcome, as always.
Andreas
-----------------------
[email protected]
01/58801 DW 41523
mobil: 0664/60 588 4523
TU Wien
DVR-Nummer: 0005886
-----------------------
_______________________________________________
Matterhorn-users mailing list
[email protected]
http://lists.opencastproject.org/mailman/listinfo/matterhorn-users
--
________________________________________________
Rüdiger Rolf, M.A.
Universität Osnabrück - Zentrum virtUOS
Heger-Tor-Wall 12, 49069 Osnabrück
Telefon: (0541) 969-6511 - Fax: (0541) 969-16511
E-Mail: [email protected]
Internet: www.virtuos.uni-osnabrueck.de
-----------------------
[email protected]
01/58801 DW 41523
mobil: 0664/60 588 4523
TU Wien
DVR-Nummer: 0005886
-----------------------
_______________________________________________
Matterhorn-users mailing list
[email protected]
http://lists.opencastproject.org/mailman/listinfo/matterhorn-users
