Would you say this is the same issue as I described here
<http://www.mail-archive.com/ltsp-discuss@lists.sourceforge.net/msg36419.html>?
I never got any help with that, but I would still like to know some
answers as this is totally blocking my LTSP project...
Thanks
Chris Roberts wrote:
On Tuesday 28 Apr 2009, Chris Roberts wrote:
Actually it is failing at 10-minutes not 20-minutes, and it is at the exact
moment that the screen goes off.
I am not quite as sure about this as I was, it seems that sometimes it
survives the screen blanking at 10 minutes, but if it does survive, it
usually locks up at 20 minute.
>From the client console I have run...
# xset -display :7 -q
... and this reports that blanking is done at 600 seconds with a 600 second
cycle. Then the DPMS settings are for standby at 1200, suspend at 1800 and
off at 2400. DPMS is enabled. I have tried...
# xset -display :7 -dpms
# xset -display :7 -q
... which shows that dpms is now disabled. But this doesn't disable the
screen blanking, and the problem still occurs. Sometimes at 10 minutes,
sometimes at 20. Or perhaps it's at 13 minutes or 18 minutes - it is
impossible to audit this problem effectively.
So perhaps the issue is with the screen blanking? I have tried setting the
screen blanking to 100 seconds, which in theory should make the problem occur
much more quickly. And sure enough the terminal failed after a couple of
blankings.
I now set the blanking to 9999 seconds and with dpms switched off...
# xset -display :7 -dpms
# xset -display :7 s blank
# xset -display :7 s 9999
... by my reckoning this should to all intents and purposes stop the blanking
and power management. But it does seem counter-intuitive that the blanking
could cause an issue of this type, unless this is a problem with xorg and
rdesktop.
Sure enough no screen blanking, but the rdesktop session hangs after about 15
minutes.
So this issue is nothing whatsoever to do with power management. Has anyone
else experienced random lock-ups with rdesktop?
Any suggestions for debugging this problem?
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