Bug#202923: more SISDisplayPowerManagementSet
>>>>> "E" == Elwood C Downey <ecdowney@clearskyinstitute.com> writes:
E> Thanks. I found a computer here with an SIS graphics chip and the end
E> of its log looked the same as the one you sent.
E> I think the last four lines you found in the log file was just from
E> booting the X server, I do not think it happened
Dear http://bugs.debian.org/202923 :
See what happens when there are no time stamps in log files! No one
can tell when the problem occurred.
E> as a direct result of XEphem blanking. Now what I see in your xdpyinfo
E> is your server implements DPMS, the display
E> power management extension. So I think whatever is causing the screen
E> blank is due to DPMS in general and is not
E> SIS-specific.
Today I have powered up the computer, but not run xephem. The lines
haven't appeared yet in /var/log/XFree86.0.log
Now starting it, and looking at sky view, now exiting, still,
/var/log/XFree86.0.log is untouched.
Therefore I believe those SISDisplayPowerManagementSet lines were
indeed added only upon the mishap. I don't know how they got into
your file. I bet there is no timestamp there either so you can't tell
if it is part of your boot sequence. It's not part of mine.
E> One crude idea I have is to disable display power management inside
E> XEphem. This might eliminate the black screens
E> when clicking but this has two bad side effects: the user could walk
E> away while XEphem is on the screen and be very
E> surprised to find his screen is still running at full brightness when
maybe make it a run time choice in .exphemrc
E> he returns a week later; and two, I know of no
I guess each X program is responsible for power saving, and the user
can't override them all with a default...
E> portable way to make the commands to DPMS, I can only find ways that
E> work on UNIX systems running XFree86 X Servers.
E> So I do not think this idea is worth pursuing.
E> What really nags at me though is why this happens in the first
E> place. One idea is that somehow the mouse click is
E> advancing the time inside the X Server, so it suddenly thinks a long
E> time has elapsed and it is time to blank the
E> screen. I used to think this only happened in Sky View but I have seen
E> it happen in other Views now too. But always
E> only with the right clicking, never a left click. In fact, a left
E> click first always prevents the blanking from a
E> right click that immediately follows.
sounds like a boxing match
E> Very very strange.
E> Mail: HC31 PO Box 126 Polvadera NM 87828 Phone: 505-835-1325
no more Iowa, I see. Oh, I get it, 'clearsky...'
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