From: Michael A. Meystel (meystel@icompsol.com)
Date: Tue May 01 2007 - 13:48:12 EDT
Greetings,
In my Sun Ray configuration, which consists of a Sun Ultra 80 running
Solaris 10 and SRSS 3.1, and a bunch of Sun Ray 150 and Sun Ray 1 clients,
I also have a Windows XP machine offering remote login, and have some of
the Sun Ray clients configured to go directly into full-screen uttsc when
the user logs in to the terminal.
My problems are the following:
1. Default screen resolution on Sun Ray 1 clients
When Sun Ray 1 clients are powered off and then powered on again, they lose
their knowledge of what screen resolution to operate at. When they come
up from a cold start, one needs to move the mouse past the edge of the
screen, at which point the display (the CDE login screen) scrolls -- it's
like the virtual framebuffer is huge, but what's displayed on screen is
smaller.
This is corrected by logging in to the client and running utsettings to
set the screen resolution explicitly. For some reason, anything less than
1280x1024 results in this virtual framebuffer problem. And 1280x1024 makes
for some pretty tiny print.
There is a command somewhere in /opt/SUNWut/sbin that is meant to allow the
administrator to set the default screen resolution (I forget the name
right now), but I have not been able to get this command to work.
2. utts and Windows Terminal Server traffic
The users who use uttsc to gain access to a Windows Terminal Services
environment have reported that when they play streaming media through
Windows Media Player, the audio fades in and out and the video image
looks like it is coming over a 1980's video-telephone: one frame every
few seconds, definitely not keeping up with the rate of the audio
stream.
I was able to confirm and reproduce these reports. They are worse
on network segments that are connected wirelessly, but the problem
is quite pronounced on wired segments as well. Running the media
stream directly on the Windows Terminal Service server results in
display and audio like one would expect: smooth and synchronized,
so I know it's not the terminal server at fault here.
I suspect that perhaps the added traffic between the Sun Ray server
and the Windows server might be slowing things down, but I have
not been able to figure out how to view ASX and other Windows Media
Player formats directly in X-Windows. I've installed things like
mplayer, xine, and others, and none of them seem to be able to handle
a WMP stream. Microsoft indicated that they had a WMP client for
X-Windows back in the 6.3 version of their product, but they
discontinued support for this client and it does not seem to be
available anywhere.
Either solution would work (although I'd love to see how to improve
SRSS throughput so that I can stream multimedia broadcasts through
uttsc).
Concerning the audio, the built-in speakers in a Sun Ray client are
inadequate, so those who use multimedia have powered external speakers
hooked up to the headphone jack.
Two questions on the audio:
1. Why do the powered speakers have to be hooked up to the headphone
jack and not to the jack that's marked with an icon that looks like
"audio line out" (an arrow coming out of a circle)?
2. Why do the clients have to have the speaker volume knob, Windows
volume control, AND Windows Media Player volume slider ALL turned
all the way up, in order to hear any audio? I have all of the
necessary patches installed, and the firmware is up-to-date, and
still these audio problems.
Any help with the above questions would be greatly appreciated.
I will summarize to the list.
Thank you,
Mike
meystel (-at-) icompsol.com
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