Experimental Physics and Industrial Control System
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Hi Brian,
we have seen the same effect with MEDM. I suspect a problem with either the
X-server or the motif library. It is very strange that the effect appears only
on some computers.
It seems that the screens don't get update requests when new values arrive.
Minimizing and maximizing, or just "wiping" the screen with some other window
generates the update events and the current value is shown. From this I conclude
that there is no problem in EPICS and the monitor events correctly arrive. The
values are just not updated on the screen. Can you verify this with EDM?
Dirk
Brian Bevins wrote:
We are in the process of converting our control room machines from HP-UX
11.11 to RedHat Enterprise Linux (rhel) 4WS. Most things seem to be
working fine, but an odd problem has cropped up with EDM that we did not
have on HP-UX.
Every now and then an EDM display will simply stop showing any updates
to the PV's. Closing and re-opening the display gets it working again.
Writes from the screen to the ioc's seem to work normally.
Has anybody else experienced a problem like this?
We are using EDM 1-10-2 on rhel 4WS (Nahant Update 5). This is the same
version we have bee using on HP-UX with no problems.
Our operators love how zippy EDM runs on their new Linux boxes compared
to the ancient HP hardware, but this is really denting their enthusiasm.
Thanks,
--Brian
--
Dr. Dirk Zimoch
Paul Scherrer Institut, WBGB/006
5232 Villigen PSI, Switzerland
Phone +41 56 310 5182
- Replies:
- RE: EDM screens not updating on Linux Szalata, Zenon M.
- Re: EDM screens not updating on Linux Brian Bevins
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- EDM screens not updating on Linux Brian Bevins
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ANJ, 10 Nov 2011 |
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