[vdr] Tuning USB

Markus Fritsche fritsche.markus at googlemail.com
Thu Feb 4 12:33:07 CET 2010


Hello,

further investigation shows that it only affects some channels, and
only if recording. Meaning: every channel is fine when streamed, some
are also recorded, others just cause the vdr process to restart while
recording.

Any pointers? Better antenna?

2010/2/3 VDR User <user.vdr at gmail.com>
>
> On Wed, Feb 3, 2010 at 1:37 PM, Markus Fritsche
> <fritsche.markus at googlemail.com> wrote:
> > Hello,
> >
> > I am using (or trying to) vdr on an Eee PC 701. vdr is set up to be
> > headless, just used for network streaming and (hopefully) recording.
> >
> > I am facing some issues with the USB connection though. Some details
> > on my setup:
> >
> > - Eee 701
> > - Ubuntu Server 9.10
> > - Ubuntu VDR and dvb drivers
> > - USB Hauppauge Nova-T Stick 3
> > - USB Harddisks for storage
> >
> > The issue I'm facing is that all three external USB ports of the Eee
> > 701 are wired to the same hub (at least, that's what I think ;-)).
> > Live TV via network streaming (vdr-plugin-streamdev-server) is fine
> > and works like a charm.
> >
> > Recording, though, cancels after 30 seconds, saying that "ERROR: video
> > data stream broken".
> >
> > I already set the autosuspend of USB to off, changed the cpufreq
> > govenor to performance.
> >
> > Are there any other tweaks you can think of that will allow vdr to
> > record & store the stream while being on the same USB HUB? Or is this
> > a lost cause?
>
> I'm not sure this is the right mailing list for your question, since
> it's more to do with USB then VDR.  However, maybe the source of your
> problem is with the address bandwidth being used by your USB
> harddrive, there isn't enough to handle everything, thus
> bottlenecking.  That's just an idea but it's easily tested but moving
> one of your devices to another USB hub, using a networked harddrive
> for storage, or something like that.  If it magically works again,
> then you know putting everything on the same USB hub is a problem.
>
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