[mythtv-users] [Semi-OT] Intel 2200 Wireless chipset with Myth...
loudawg at comcast.net
Sat Dec 3 21:17:23 EST 2005
On Saturday 03 December 2005 01:27 pm, Darren Black wrote:
> I just bought myself a Dell Inspiron 6000 laptop (wasn't keen on buying
> Dell, but the price was good and it's a surprisingly nice machine). The
> machine contains an Intel 2200 wifi card as part of the Centrino package.
> My attempts to get the card working well in FC4 have been, well... ugly
> would probably be the best word. That's perhaps a little beside the point
> of this post.
> What I'm really wondering is if anybody here uses such a card under linux
> to stream TV/recordings over. In the times I have actually had the card
> functioning, the wireless connection was unable to sustain a constant
> stream (without pausing and jitter). My streams are from a PVR150 card and
> encoded at up to 8500kbit/sec. I have tried turning the bitrate down to
> 6500 which helped, but not for very long. My previous wireless gear was
> some DLink "b+" standard equipment. My current router is a Linksys WRT54GS.
> I should be getting better throughput with this setup, however this is not
> the case in Linux (to this point at least). Performance in Windoze is alot
> better - the same recordings play back problem free using dsmyth.
> I suspect that my inability to configure the card correctly is the cause of
> the poor performance, but I'd like some feedback to either confirm or
> disprove this hypothesis. So do let me know :-)
I had an issue as well, and there are two things I did that made it work fine
(although I haven't used my laptop a whole lot lately for mythtv):
First, put your router in G-only mode, if possible. This increases the
throughput by a considerable amount (for me, mixed mode gave me around 1
meg/sec transfers, while G-only mode gave me around 2 megs/sec).
For the ipw2200, I noticed that when trying to stream mythtv stuff, I get a
lot of errors in dmesg regarding the firmware messing up or something. I
think this is due to hardware encryption. If you use WEP on your network,
then add the module parameter hwcypto=0. This eliminated that issue for me.
These two things made everything stream just fine for me even at pretty high
bitrates. I did LiveTV before and it worked ok.
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