Thread: 770 Or N800?
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bunanson is offline bunanson
2008-04-03 , 22:02
Posts: 4,030 | Thanked: 1,633 times | Joined on Jul 2007 @ nd usa
#39
Originally Posted by fanoush View Post
Might be worth trying. Having system on mmc can sometimes cause audoi stuttering. At least with stock media player or internet radio applet, not sure about mplayer. The problem is that since 2.6.18 kernel, mmcqd kernel thread has higher priority than audio daemon so with random mmc writing audio may stutter. If you hear this try to run
Code:
renice 0 `pidof mmcqd`
as root to check if it goes away. Good place to run it is somewhere inside /usr/sbin/osso-mmc-mount.sh script which is run after mmc card is inserted. I have mentioned this few times but nobody ever complains about it so maybe it happens just to me :-)

As for 770 being better in smooth playback, maybe kernel preemption helps too. N8x0 kernel is not preemptible so latency in kernel may be higher.

I am sorry that I misused the word 'stuttering'. I mean video 'stuttering', the audio is fine on all the tablets, but the video starts to go bad after couple of minutes run on streaming data or 6-7 minutes run upon watching a downloaded file. This is the N8x0. Whereas the 770 is silk smooth both audio and video on both streaming or downloaded files. The point I try to make is, bandwidth does not seem to be the culprit, and sadly to say, with the current status of the videocenter, the 770 seems to be slightly better than the N8x0s

The kernel preemption may be the solution, I will give a shot after I understand it, right now I am trying to run under internal flash and see whether the N8x0s fair better, just a few seconds, I will post.....
bun
Last edited by bunanson; 2008-04-03 at 22:09.