maemo.org - Talk - View Single Post - Taking a screencast on N900

	lostinmirkwood	2010-06-24 , 00:38
	Posts: 128 \| Thanked: 232 times \| Joined on Sep 2009 @ New Jersey, USA	#21

Originally Posted by jaem

Hello,

[Note: I'm PM'ing you because it's time-sensitive on my end, and I didn't know if you'd see a thread update. Feel free to respond to and/or quote this message in-thread.]

Your method works, but the performance is unusable - screen refreshes are taking almost a second at times. My router isn't great (a WRT54GL) but I don't see why it shouldn't be able to handle this with only two computers on the network. I glanced through the X11VNC man page, but it was a lot of information to go through. Are there any other switches that could help performance? Alternately, is there a way to override the link speed detection? I suspect that the detection may be inaccurate, given its variance between sessions.

Thanks,
Jeff

Rambling reply of some good and some useless ideas:

There aren't any switches that I'm aware (besides the -ncache 10) or I would have used them (but there's so many I really only poked around).

First I determined what my issue was, ffmpeg on my laptop or vnc on my network and I found that it was mostly vnc.

By changing the n900's network connection to DISABLE power-saving mode for my home network and by plugging it into the wall. I got a usable response 30% faster by my eye. Are you over-clocking your kernel, that has risks but may help?

Be sure that you're running vnc unencrypted. (if it's on your local network I figured I'd be fine unencrypted, plus x11VNC only allows for one connection by default) If you're using ubuntu Remote Desktop in View only mode seems a lot faster.

Don't forget that you can always use one of the may non-linear video editors to cut out some of the delay. I did that for a lot of my video because the photo editing can take 15secs at times. It's a fairly easy process, just snip out sections of delay.

Also check top on your n900 to make sure nothing else like pulseaudio is running away your processor.

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